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Dotsenko A, Sinelnikov I, Rozhkova A, Zorov I, Sinitsyn A. Flexibility of active center affects thermostability and activity of Penicillium canescens xylanase E. Biochimie 2024; 216:83-89. [PMID: 37820990 DOI: 10.1016/j.biochi.2023.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 10/03/2023] [Accepted: 10/04/2023] [Indexed: 10/13/2023]
Abstract
Xylanases are used in several industrial applications, such as feed additives, the bleaching of pulp and paper, and the production of bread, food, and drinks. Xylanases are required to remain active after heat treatment at 80-90 °C for 30 s to several minutes due to the conditions of feed pelleting. Also, xylanases need to be active at 60-70 °C for several hours while bleaching of pulp and paper or manufacturing of bread, food, and drinks is performed. Xylanases of the glycoside hydrolase family GH10 are good candidates for application in such processes because of their high thermostability and, in particular, as feed additives because of their insensitivity to protein inhibitors in cereal feeds. In the study, the thermostability of GH10 xylanase E from Penicillium canescens was improved to reach a half-inactivation period of 2 min at 80 °C compared to 21 s for the wild-type enzyme (WT). Enzymatic activity was increased by 22-48 % at 40-70 °C, which improved the action of the enzyme as a feed additive in the gastric system of animals and during bleaching of pulp and paper. Molecular dynamics simulations demonstrated lower flexibility of the tertiary structure of the engineered enzyme at elevated temperatures compared to WT. The residues W113, Q116, W313, and W321 in the (-1) and (-2) subsites for the substrate binding were less flexible. In the simulations, the engineered enzyme had a comparable content of α-helixes, 310-helixes, β-sheets, and β-bridges as WT, but a lower content of coils and a higher content of β-turns.
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Affiliation(s)
- Anna Dotsenko
- Federal Research Centre «Fundamentals of Biotechnology», Russian Academy of Sciences, Moscow, 119071, Russia.
| | - Igor Sinelnikov
- Federal Research Centre «Fundamentals of Biotechnology», Russian Academy of Sciences, Moscow, 119071, Russia.
| | - Aleksandra Rozhkova
- Federal Research Centre «Fundamentals of Biotechnology», Russian Academy of Sciences, Moscow, 119071, Russia.
| | - Ivan Zorov
- Federal Research Centre «Fundamentals of Biotechnology», Russian Academy of Sciences, Moscow, 119071, Russia; Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow, 119991, Russia.
| | - Arkady Sinitsyn
- Federal Research Centre «Fundamentals of Biotechnology», Russian Academy of Sciences, Moscow, 119071, Russia; Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow, 119991, Russia.
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2
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Dotsenko A, Denisenko J, Zorov I, Wasserman L, Semenova M, Korolev A, Rozhkova A, Sinitsyn A. Single substitution in α-helix of active center enhanced thermostability of Aspergillus awamori exo-inulinase. J Mol Graph Model 2023; 119:108381. [PMID: 36473387 DOI: 10.1016/j.jmgm.2022.108381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/16/2022] [Accepted: 11/22/2022] [Indexed: 11/30/2022]
Abstract
Exo-inulinases are applied in inulin hydrolysis and production of feed additives and need to be stable at temperatures of 60-95 °C. Aspergillus awamori exo-inulinase Inu1 is considerably thermostable, with a Tm of 73.2 °C. However, the thermostability of the enzyme should be improved. A single substitution G338A in α-helix in the active center of the enzyme provided a 3.5 °C improvement in Tm. The time of half-life at 70 °C and 80 °C was increased in 5.7- and 2.7-times, respectively, compared to wild-type. Molecular dynamics simulations demonstrated that the substitution G338A caused a decrease in RMSF not only for the α-helix 337-YAANI-341, but also for the catalytically active residues D41 and E241 and the amino acid residues forming the cleft of the active center. Calculations with Constraint Network Analysis for the variant G338A showed the increase in the stability of intramolecular clusters.
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Affiliation(s)
- Anna Dotsenko
- FSI Federal Research Centre Fundamentals of Biotechnology of the Russian Academy of Sciences, Moscow, 119071, Russia.
| | - Jury Denisenko
- FSI Federal Research Centre Fundamentals of Biotechnology of the Russian Academy of Sciences, Moscow, 119071, Russia.
| | - Ivan Zorov
- FSI Federal Research Centre Fundamentals of Biotechnology of the Russian Academy of Sciences, Moscow, 119071, Russia; Faculty of Chemistry, Lomonosov Moscow State University, Moscow, 119991, Russia.
| | - Luybov Wasserman
- Emanuel Institute of Biochemical Physics RAS, Moscow, 119334, Russia.
| | - Margarita Semenova
- FSI Federal Research Centre Fundamentals of Biotechnology of the Russian Academy of Sciences, Moscow, 119071, Russia.
| | - Andrei Korolev
- Faculty of Chemistry, Lomonosov Moscow State University, Moscow, 119991, Russia.
| | - Aleksandra Rozhkova
- FSI Federal Research Centre Fundamentals of Biotechnology of the Russian Academy of Sciences, Moscow, 119071, Russia; Faculty of Chemistry, Lomonosov Moscow State University, Moscow, 119991, Russia.
| | - Arkady Sinitsyn
- FSI Federal Research Centre Fundamentals of Biotechnology of the Russian Academy of Sciences, Moscow, 119071, Russia; Faculty of Chemistry, Lomonosov Moscow State University, Moscow, 119991, Russia.
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Karp SG, Rozhkova AM, Semenova MV, Osipov DO, de Pauli STZ, Sinitsyna OA, Zorov IN, de Souza Vandenberghe LP, Soccol CR, Sinitsyn AP. Designing enzyme cocktails from Penicillium and Aspergillus species for the enhanced saccharification of agro-industrial wastes. BIORESOURCE TECHNOLOGY 2021; 330:124888. [PMID: 33713945 DOI: 10.1016/j.biortech.2021.124888] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/16/2021] [Accepted: 02/17/2021] [Indexed: 06/12/2023]
Abstract
The aim of this study was to develop optimized enzyme cocktails, containing native and recombinant purified enzymes from five fungal species, for the saccharification of alkali- and acid-pretreated sugarcane bagasse (SCB), soybean hulls (SBH) and oil palm empty fruit bunches (EFB). Basic cellulases were represented by cellobiohydrolase I (CBH) and endo-glucanase II (EG) from Penicillium verruculosum and β-glucosidase (BG) from Aspergillus niger. Auxiliary enzymes were represented by endo-xylanase A (Xyl), pectin lyase (PNL) and arabinoxylanhydrolase (AXH) from Penicillium canescens, β-xylosidase (BX) from Aspergillus japonicus, endo-arabinase (ABN) from A. niger and arabinofuranosidase (Abf) from Aspergillus foetidus. Enzyme loads were 5 mg protein/g dry substrate (basic cellulases) and 1 mg/g (each auxiliary enzyme). The best choice for SCB and EFB saccharification was alkaline pretreatment and addition of Xyl + BX, AXH + BX or ABN + BX + Abf to basic cellulases. For SBH, acid pretreatment and basic cellulases combined with ABN + BX + Abf or Xyl + BX performed better than other enzyme preparations.
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Affiliation(s)
- Susan G Karp
- Federal University of Paraná, Department of Bioprocess Engineering and Biotechnology, 81531-990 Curitiba, Paraná, Brazil
| | - Alexandra M Rozhkova
- Federal Research Centre Fundamentals of Biotechnology» of the Russian Academy of Sciences, Moscow 119071, Russia.
| | - Margarita V Semenova
- Federal Research Centre Fundamentals of Biotechnology» of the Russian Academy of Sciences, Moscow 119071, Russia
| | - Dmitrii O Osipov
- Federal Research Centre Fundamentals of Biotechnology» of the Russian Academy of Sciences, Moscow 119071, Russia
| | - Suellen T Z de Pauli
- Federal University of Paraná, Postgraduate Program in Numerical Methods, Curitiba, Paraná, Brazil
| | - Olga A Sinitsyna
- M. V. Lomonosov Moscow State University, Department of Chemistry, Moscow 119991, Russia
| | - Ivan N Zorov
- Federal Research Centre Fundamentals of Biotechnology» of the Russian Academy of Sciences, Moscow 119071, Russia; M. V. Lomonosov Moscow State University, Department of Chemistry, Moscow 119991, Russia
| | | | - Carlos R Soccol
- Federal University of Paraná, Department of Bioprocess Engineering and Biotechnology, 81531-990 Curitiba, Paraná, Brazil.
| | - Arkady P Sinitsyn
- Federal Research Centre Fundamentals of Biotechnology» of the Russian Academy of Sciences, Moscow 119071, Russia; M. V. Lomonosov Moscow State University, Department of Chemistry, Moscow 119991, Russia.
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Effect of Novel Penicillium verruculosum Enzyme Preparations on the Saccharification of Acid- and Alkali-Pretreated Agro-Industrial Residues. AGRONOMY-BASEL 2020. [DOI: 10.3390/agronomy10091348] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
This study aimed at evaluating different enzyme combinations in the saccharification of sugarcane bagasse (SCB), soybean husks (SBH) and oil palm empty fruit bunches (EFB) submitted to mild acid and alkaline pretreatments. Enzyme pools were represented by B1 host (crude cellulase/xylanase complexes of Penicillium verruculosum); B1-XylA (Penicillium canescens xylanase A expressed in P. verruculosum B1 host strain); and F10 (Aspergillus niger β-glucosidase expressed in B1 host strain). Enzyme loading was 10 mg protein/g dry substrate and 40 U/g of β-glucosidase (F10) activity. SCB was efficiently hydrolyzed by B1 host after alkaline pretreatment, yielding glucose and reducing sugars at 71 g/L or 65 g/100 g of dry pretreated substrate and 91 g/L or 83 g/100 g, respectively. B1 host performed better also for EFB, regardless of the pretreatment method, but yields were lower (glucose 27–30 g/L, 25–27 g/100 g; reducing sugars 37–42 g/L, 34–38 g/100 g). SBH was efficiently saccharified by the combination of B1 host and B1-XylA, yielding similar concentrations of reducing sugars for both pretreatments (92–96 g/L, 84–87 g/100 g); glucose recovery, however, was higher with alkaline pretreatment (81 g/L, 74 g/100 g). Glucose and reducing sugar yields from initial substrate mass were 42% and 54% for SCB, 36% and 42–47% for SBH and 16–18% and 21–26% for EFB, respectively.
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Sinitsyna OA, Rubtsova EA, Sinelnikov IG, Osipov DO, Rozhkova AM, Matys VY, Bubnova TV, Nemashkalov VA, Sereda AS, Tcsherbakova LA, Sinitsyn AP. Creation of Chitinase Producer and Disruption of Micromycete Cell Wall with the Obtained Enzyme Preparation. BIOCHEMISTRY (MOSCOW) 2020; 85:717-724. [PMID: 32586235 DOI: 10.1134/s0006297920060097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A recombinant strain producing a complex of extracellular enzymes including chitinase from Myceliophtora thermophila was created based on the fungus Penicillium verruculosum. The activity of the enzyme preparations obtained from the cultural fluid of the producer strain was 0.55, 0.53, and 0.66 U/mg protein with chitin and chitosans with the molecular weight of 200 and 1000 kDa, respectively. The temperature optimum for the recombinant chitinase was 52-65°C; the pH optimum was 4.5-6.2, which corresponded to the published data for this class of the enzymes. The content of heterologous chitinase in the obtained enzyme preparations was 47% of total protein content in the cultural fluid. Enzyme preparations produced by the recombinant P. verruculosum XT403 strain and containing heterologous chitinase were able to degrade the mycelium of micromycetes, including phytopathogenic ones, and were very efficient in the bioconversion of microbiological industry waste.
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Affiliation(s)
- O A Sinitsyna
- Lomonosov Moscow State University, Faculty of Chemistry, Moscow, 119991, Russia.
| | - E A Rubtsova
- Fundamentals of Biotechnology Federal Research Center, Russian Academy of Sciences, Moscow, 119071, Russia
| | - I G Sinelnikov
- Fundamentals of Biotechnology Federal Research Center, Russian Academy of Sciences, Moscow, 119071, Russia
| | - D O Osipov
- Fundamentals of Biotechnology Federal Research Center, Russian Academy of Sciences, Moscow, 119071, Russia
| | - A M Rozhkova
- Fundamentals of Biotechnology Federal Research Center, Russian Academy of Sciences, Moscow, 119071, Russia
| | - V Yu Matys
- Pushchino Scientific Center for Biological Research, Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russia
| | - T V Bubnova
- Pushchino Scientific Center for Biological Research, Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russia
| | - V A Nemashkalov
- Pushchino Scientific Center for Biological Research, Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russia
| | - A S Sereda
- Russian Research Institute of Food Biotechnology, Moscow, 111033, Russia
| | - L A Tcsherbakova
- All-Russian Research Institute of Phytopathology, Bolshye Vyazemy, Moscow Region, 143050, Russia
| | - A P Sinitsyn
- Lomonosov Moscow State University, Faculty of Chemistry, Moscow, 119991, Russia.,Fundamentals of Biotechnology Federal Research Center, Russian Academy of Sciences, Moscow, 119071, Russia
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Poria V, Saini JK, Singh S, Nain L, Kuhad RC. Arabinofuranosidases: Characteristics, microbial production, and potential in waste valorization and industrial applications. BIORESOURCE TECHNOLOGY 2020; 304:123019. [PMID: 32089440 DOI: 10.1016/j.biortech.2020.123019] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 02/09/2020] [Accepted: 02/11/2020] [Indexed: 05/15/2023]
Abstract
Alpha-L-arabinofuranoside arabinofuranohydrolase (ARA), more commonly known as alpha-L-arabinofuranosidase (E.C. number 3.2.1.55), is a hydrolytic enzyme, catalyzing the cleavage of alpha-L-arabinose by acting on the non-reducing ends of alpha-L-arabinofuranosides, alpha-L-arabinans containing (1,3)- and/or (1,5)-linked arabinoxylans and arabinogalactans. ARA functions as debranching enzyme removing arabinose substituents from arabinoxylan and arabinoxylooligomers, thereby, boosting the hydrolysis of arabinoxylan fraction of hemicellulose and improving bioconversion of lignocellulosic biomass. Previously, comprehensive information on this enzyme has not been reviewed thoroughly. Therefore, the main aim of this review is to highlight the important properties of this interesting enzyme, microorganisms used for its production, and enhanced production using genetic engineering approach. An account on synergism with other biomass hydrolyzing enzymes and various industrial applications of this enzyme has also been provided along with an outlook on further research and development.
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Affiliation(s)
- Vikram Poria
- Department of Microbiology, Central University of Haryana, Mahendergarh, Haryana PIN-123031, India
| | - Jitendra Kumar Saini
- Department of Microbiology, Central University of Haryana, Mahendergarh, Haryana PIN-123031, India
| | - Surender Singh
- Department of Microbiology, Central University of Haryana, Mahendergarh, Haryana PIN-123031, India; Division of Microbiology, Indian Agricultural Research Institute, New Delhi PIN-110012, India.
| | - Lata Nain
- Division of Microbiology, Indian Agricultural Research Institute, New Delhi PIN-110012, India
| | - Ramesh Chander Kuhad
- Central University of Haryana, Mahendergarh, Haryana PIN-123031, India; Lignocellulose Biotechnology Laboratory, Department of Microbiology, University of Delhi South Campus, New Delhi PIN-110021, India
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7
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Cloning, purification and study of recombinant GH3 family β-glucosidase from Penicillium verruculosum. Biochimie 2020; 168:231-240. [DOI: 10.1016/j.biochi.2019.11.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 11/12/2019] [Indexed: 12/13/2022]
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8
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Dotsenko AS, Rozhkova AM, Zorov IN, Sinitsyn AP. Protein surface engineering of endoglucanase Penicillium verruculosum for improvement in thermostability and stability in the presence of 1-butyl-3-methylimidazolium chloride ionic liquid. BIORESOURCE TECHNOLOGY 2020; 296:122370. [PMID: 31734058 DOI: 10.1016/j.biortech.2019.122370] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 11/01/2019] [Accepted: 11/02/2019] [Indexed: 06/10/2023]
Abstract
Thermostability and stability in ionic liquids are essential properties of cellulases that are applied in industrial processes of bioconversion. Engineering of protein surface of endoglucanase II from Penicillium verruculosum was used to improve the enzyme thermostability and stability in 1-butyl-3-methylimidazolium chloride ([Bmim]Cl). The engineering was based on analysis of the protein surface topography and enhanced by multiple sequence alignment and ΔΔG calculations. In the case of the thermostability, half-life time was improved in 1.3-1.6 times at 70 °C and 1.2-1.4 times at 80 °C. In the case of the stability in [Bmim]Cl, the residual activity after 72 h of incubation in the presence of [Bmim]Cl (50 g/L, 50 °C, pH 4.5) was 1.7-1.9 times greater for the tailored enzyme. The yield of reducing sugars after enzymatic hydrolysis of aspen wood pretreated with [Bmim]Cl was 10-20% higher with the tailored endoglucanase.
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Affiliation(s)
- Anna S Dotsenko
- Federal Research Centre "Fundamentals of Biotechnology", Russian Academy of Sciences, Moscow 119071, Russia.
| | - Aleksandra M Rozhkova
- Federal Research Centre "Fundamentals of Biotechnology", Russian Academy of Sciences, Moscow 119071, Russia
| | - Ivan N Zorov
- Federal Research Centre "Fundamentals of Biotechnology", Russian Academy of Sciences, Moscow 119071, Russia; Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow 119991, Russia
| | - Arkady P Sinitsyn
- Federal Research Centre "Fundamentals of Biotechnology", Russian Academy of Sciences, Moscow 119071, Russia; Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow 119991, Russia
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9
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Semenova MV, Rozhkova AM, Osipov DO, Satrutdinov AD, Sinitsyna OA, Rubtsova EA, Kondrateva EG, Sinitsyn AP. Selection of the Optimal Enzyme Composition for Sugar Beet Pulp Conversion. APPL BIOCHEM MICRO+ 2019. [DOI: 10.1134/s0003683819050119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Critical effect of proline on thermostability of endoglucanase II from Penicillium verruculosum. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2019.107395] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Bashirova A, Pramanik S, Volkov P, Rozhkova A, Nemashkalov V, Zorov I, Gusakov A, Sinitsyn A, Schwaneberg U, Davari MD. Disulfide Bond Engineering of an Endoglucanase from Penicillium verruculosum to Improve Its Thermostability. Int J Mol Sci 2019; 20:E1602. [PMID: 30935060 PMCID: PMC6479618 DOI: 10.3390/ijms20071602] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 03/25/2019] [Accepted: 03/27/2019] [Indexed: 01/29/2023] Open
Abstract
Endoglucanases (EGLs) are important components of multienzyme cocktails used in the production of a wide variety of fine and bulk chemicals from lignocellulosic feedstocks. However, a low thermostability and the loss of catalytic performance of EGLs at industrially required temperatures limit their commercial applications. A structure-based disulfide bond (DSB) engineering was carried out in order to improve the thermostability of EGLII from Penicillium verruculosum. Based on in silico prediction, two improved enzyme variants, S127C-A165C (DSB2) and Y171C-L201C (DSB3), were obtained. Both engineered enzymes displayed a 15⁻21% increase in specific activity against carboxymethylcellulose and β-glucan compared to the wild-type EGLII (EGLII-wt). After incubation at 70 °C for 2 h, they retained 52⁻58% of their activity, while EGLII-wt retained only 38% of its activity. At 80 °C, the enzyme-engineered forms retained 15⁻22% of their activity after 2 h, whereas EGLII-wt was completely inactivated after the same incubation time. Molecular dynamics simulations revealed that the introduced DSB rigidified a global structure of DSB2 and DSB3 variants, thus enhancing their thermostability. In conclusion, this work provides an insight into DSB protein engineering as a potential rational design strategy that might be applicable for improving the stability of other enzymes for industrial applications.
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Affiliation(s)
- Anna Bashirova
- Federal Research Centre «Fundamentals of Biotechnology» of the Russian Academy of Sciences, Moscow 119071, Russia.
| | - Subrata Pramanik
- Institute of Biotechnology, RWTH Aachen University, Aachen 52074, Worringerweg 3, Germany.
| | - Pavel Volkov
- Federal Research Centre «Fundamentals of Biotechnology» of the Russian Academy of Sciences, Moscow 119071, Russia.
| | - Aleksandra Rozhkova
- Federal Research Centre «Fundamentals of Biotechnology» of the Russian Academy of Sciences, Moscow 119071, Russia.
| | - Vitaly Nemashkalov
- G.K.Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Pushchino 142292, Moscow region, Russia.
| | - Ivan Zorov
- Federal Research Centre «Fundamentals of Biotechnology» of the Russian Academy of Sciences, Moscow 119071, Russia.
- Department of Chemistry, M.V.Lomonosov Moscow State University, Moscow 119991, Russia.
| | - Alexander Gusakov
- Department of Chemistry, M.V.Lomonosov Moscow State University, Moscow 119991, Russia.
| | - Arkady Sinitsyn
- Federal Research Centre «Fundamentals of Biotechnology» of the Russian Academy of Sciences, Moscow 119071, Russia.
- Department of Chemistry, M.V.Lomonosov Moscow State University, Moscow 119991, Russia.
| | - Ulrich Schwaneberg
- Institute of Biotechnology, RWTH Aachen University, Aachen 52074, Worringerweg 3, Germany.
- DWI-Leibniz Institut für Interaktive Materialien, Forckenbeckstrasse 50, Aachen 52056, Germany.
| | - Mehdi D Davari
- Institute of Biotechnology, RWTH Aachen University, Aachen 52074, Worringerweg 3, Germany.
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Volkov PV, Gusakov AV, Rubtsova EA, Rozhkova AM, Matys VY, Nemashkalov VA, Sinitsyn AP. Properties of a recombinant GH49 family dextranase heterologously expressed in two recipient strains of Penicillium species. Biochimie 2019; 157:123-130. [DOI: 10.1016/j.biochi.2018.11.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 11/19/2018] [Indexed: 10/27/2022]
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13
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Denisenko YA, Gusakov AV, Rozhkova AM, Zorov IN, Bashirova AV, Matys VY, Nemashkalov VA, Sinitsyn AP. Protein engineering of GH10 family xylanases for gaining a resistance to cereal proteinaceous inhibitors. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.01.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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14
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Kuznetsova E, Klimova E, Uchasov D, Yarovan N, Motyleva S, Brindza J, Berezina N, Bychkova T, Gavrilina V, Piyavchenko G. Assessment of antioxidant properties of grain concentrate and oxidant-antioxidant status pigs after its inclusion in ration feeding. POTRAVINARSTVO 2018. [DOI: 10.5219/981] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A grain concentrate was developed for use in bread baking based on whole-ground fermented wheat grain, to enhance that the beneficial properties have fermented wholegrain buckwheat grains in an amount of 20% by weight of the fermented wheat. For the fermentation of grain used dry complex enzyme preparation comprising cellulose, β-glucanase and xylanase (producing Penicillin canescens), dissolved in a buffer based on succinic acid. Under the action of the drug, the micro structure surface of grain was changed. It is established that the character of the change in surface micro structure of wheat and buckwheat grain is the same. The results of the study of the content of vitamin E, flavonoids and antioxidant activity in wheat grains, buckwheat and grain concentrate are obtained by different technologies. The results show that grain concentrates from wheat grain with the addition of 20% buckwheat grains prepared using a solution of enzyme preparation of cellulolytic action in a buffer, based on succinic acid has a high antioxidant activity. As a biological model for studying changes oxidant-antioxidant status of the organism under stress when included in a diet designed grain concentrate, used pigs, that are under stress, caused by weaning them from sows and transportation. Investigated the following parameters oxidant-antioxidant status of the organism pigs: the level of malondialdehyde, ceruloplasmin, vitamins A, E and C in the blood of animals. It is concluded that, to improve the oxidative status of the piglets after weaning period recommended addition of concentrate fodder ration of grain wheat and buckwheat prepared using a solution of an enzyme preparation buffered cellulolytic action on the basis of succinic acid. The developed grain concentrate can be used for making the manufacture of cereal products, including grain bread included in the diet of people who live in conditions of oxidative stress.
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Semenova MV, Volkov PV, Rozhkova AM, Zorov IN, Sinitsyn AP. Cloning, Isolation, and Properties of a New Homologous Exoarabinase from the Penicillium canescens Fungus. APPL BIOCHEM MICRO+ 2018. [DOI: 10.1134/s0003683818040130] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Dotsenko AS, Dotsenko GS, Senko OV, Stepanov NA, Lyagin IV, Efremenko EN, Gusakov AV, Zorov IN, Rubtsova EA. Complex effect of lignocellulosic biomass pretreatment with 1-butyl-3-methylimidazolium chloride ionic liquid on various aspects of ethanol and fumaric acid production by immobilized cells within SSF. BIORESOURCE TECHNOLOGY 2018; 250:429-438. [PMID: 29195155 DOI: 10.1016/j.biortech.2017.11.064] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 11/21/2017] [Accepted: 11/22/2017] [Indexed: 06/07/2023]
Abstract
The pretreatment of softwood and hardwood samples (spruce and hornbeam wood) with 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) was undertaken for further simultaneous enzymatic saccharification of renewable non-food lignocellulosic biomass and microbial fermentation of obtained sugars to ethanol and fumaric acid. A multienzyme cocktail based on cellulases and yeast or fungus cells producing ethanol and fumaric acid were the main objects of [Bmim]Cl influence studies. A complex effect of lignocellulosic biomass pretreatment with [Bmim]Cl on various aspects of the process (both action of cellulases and microbial conversion of hydrolysates to target products) was revealed. Positive effects of the pretreatment with [Bmim]Cl included decreasing the lignin content in the biomass, and increasing the effectiveness of enzymatic hydrolysis and microbial transformation of pretreated biomass. Immobilized cells of both yeasts and fungi possessed improved productive characteristics in the biotransformation of biomass pretreated with [Bmim]Cl to ethanol and fumaric acid.
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Affiliation(s)
- Anna S Dotsenko
- Federal Research Centre "Fundamentals of Biotechnology", Russian Academy of Sciences, Moscow 119071, Russia.
| | - Gleb S Dotsenko
- Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow 119991, Russia
| | - Olga V Senko
- Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow 119991, Russia
| | - Nikolay A Stepanov
- Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow 119991, Russia
| | - Ilya V Lyagin
- Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow 119991, Russia
| | - Elena N Efremenko
- Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow 119991, Russia
| | - Alexander V Gusakov
- Federal Research Centre "Fundamentals of Biotechnology", Russian Academy of Sciences, Moscow 119071, Russia; Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow 119991, Russia
| | - Ivan N Zorov
- Federal Research Centre "Fundamentals of Biotechnology", Russian Academy of Sciences, Moscow 119071, Russia; Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow 119991, Russia
| | - Ekaterina A Rubtsova
- Federal Research Centre "Fundamentals of Biotechnology", Russian Academy of Sciences, Moscow 119071, Russia
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Site-directed mutagenesis of GH10 xylanase A from Penicillium canescens for determining factors affecting the enzyme thermostability. Int J Biol Macromol 2017. [DOI: 10.1016/j.ijbiomac.2017.06.079] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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18
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Bulakhov AG, Volkov PV, Rozhkova AM, Gusakov AV, Nemashkalov VA, Satrutdinov AD, Sinitsyn AP. Using an Inducible Promoter of a Gene Encoding Penicillium verruculosum Glucoamylase for Production of Enzyme Preparations with Enhanced Cellulase Performance. PLoS One 2017; 12:e0170404. [PMID: 28107425 PMCID: PMC5249098 DOI: 10.1371/journal.pone.0170404] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 01/04/2017] [Indexed: 02/05/2023] Open
Abstract
Background Penicillium verruculosum is an efficient producer of highly active cellulase multienzyme system. One of the approaches for enhancing cellulase performance in hydrolysis of cellulosic substrates is to enrich the reaction system with β -glucosidase and/or accessory enzymes, such as lytic polysaccharide monooxygenases (LPMO) displaying a synergism with cellulases. Results Genes bglI, encoding β-glucosidase from Aspergillus niger (AnBGL), and eglIV, encoding LPMO (formerly endoglucanase IV) from Trichoderma reesei (TrLPMO), were cloned and expressed by P. verruculosum B1-537 strain under the control of the inducible gla1 gene promoter. Content of the heterologous AnBGL in the secreted multienzyme cocktails (hBGL1, hBGL2 and hBGL3) varied from 4 to 10% of the total protein, while the content of TrLPMO in the hLPMO sample was ~3%. The glucose yields in 48-h hydrolysis of Avicel and milled aspen wood by the hBGL1, hBGL2 and hBGL3 preparations increased by up to 99 and 80%, respectively, relative to control enzyme preparations without the heterologous AnBGL (at protein loading 5 mg/g substrate for all enzyme samples). The heterologous TrLPMO in the hLPMO preparation boosted the conversion of the lignocellulosic substrate by 10–43%; however, in hydrolysis of Avicel the hLPMO sample was less effective than the control preparations. The highest product yield in hydrolysis of aspen wood was obtained when the hBGL2 and hLPMO preparations were used at the ratio 1:1. Conclusions The enzyme preparations produced by recombinant P. verruculosum strains, expressing the heterologous AnBGL or TrLPMO under the control of the gla1 gene promoter in a starch-containing medium, proved to be more effective in hydrolysis of a lignocellulosic substrate than control enzyme preparations without the heterologous enzymes. The enzyme composition containing both AnBGL and TrLPMO demonstrated the highest performance in lignocellulose hydrolysis, providing a background for developing a fungal strain capable to express both heterologous enzymes simultaneously.
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Affiliation(s)
- Alexander G. Bulakhov
- Federal Research Centre «Fundamentals of Biotechnology», Russian Academy of Sciences, Moscow, Russia
| | - Pavel V. Volkov
- Federal Research Centre «Fundamentals of Biotechnology», Russian Academy of Sciences, Moscow, Russia
| | - Aleksandra M. Rozhkova
- Federal Research Centre «Fundamentals of Biotechnology», Russian Academy of Sciences, Moscow, Russia
- Department of Chemistry, M.V.Lomonosov Moscow State University, Moscow, Russia
- * E-mail:
| | - Alexander V. Gusakov
- Federal Research Centre «Fundamentals of Biotechnology», Russian Academy of Sciences, Moscow, Russia
- Department of Chemistry, M.V.Lomonosov Moscow State University, Moscow, Russia
| | - Vitaly A. Nemashkalov
- G.K.Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Pushchino, Moscow region, Russia
| | - Aidar D. Satrutdinov
- Federal Research Centre «Fundamentals of Biotechnology», Russian Academy of Sciences, Moscow, Russia
| | - Arkady P. Sinitsyn
- Federal Research Centre «Fundamentals of Biotechnology», Russian Academy of Sciences, Moscow, Russia
- Department of Chemistry, M.V.Lomonosov Moscow State University, Moscow, Russia
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19
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Gusakov AV, Dotsenko AS, Rozhkova AM, Sinitsyn AP. N-Linked glycans are an important component of the processive machinery of cellobiohydrolases. Biochimie 2017; 132:102-108. [DOI: 10.1016/j.biochi.2016.11.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 11/10/2016] [Indexed: 02/02/2023]
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20
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Dotsenko AS, Gusakov AV, Rozhkova AM, Sinitsyna OA, Nemashkalov VA, Sinitsyn AP. Effect of
N
-linked glycosylation on the activity and other properties of recombinant endoglucanase IIa (Cel5A) from
Penicillium verruculosum. Protein Eng Des Sel 2016; 29:495-502. [DOI: 10.1093/protein/gzw030] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 06/17/2016] [Accepted: 06/20/2016] [Indexed: 12/14/2022] Open
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21
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Dotsenko AS, Rozhkova AM, Gusakov AV. Properties and N-glycosylation of recombinant endoglucanase II from Penicillium verruculosum. ACTA ACUST UNITED AC 2016. [DOI: 10.3103/s0027131415060024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Kuznetsova E, Motyleva S, Mertvischeva M, Zomitev V, Brindza J. Composition and microstructure alteration of triticale grain surface after processing by enzymes of cellulase complex. POTRAVINARSTVO 2016. [DOI: 10.5219/411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
It is found that the pericarp tissue of grain have considerable strength and stiffness, that has an adverse effect on quality of whole-grain bread. Thereby, there exists the need for preliminary chemical and biochemical processing of durable cell walls before industrial use. Increasingly used in the production of bread finds an artificial hybrid of the traditional grain crops of wheat and rye - triticale, grain which has high nutritional value. The purpose of this research was to evaluate the influence of cellulose complex (Penicillium canescens) enzymes on composition and microstructure alteration of triticale grain surface, for grain used in baking. Triticale grain was processed by cellulolytic enzyme preparations with different composition (producer is Penicillium canescens). During experiment it is found that triticale grain processing by enzymes of cellulase complex leads to an increase in the content of water-soluble pentosans by 36.3 - 39.2%. The total amount of low molecular sugars increased by 3.8 - 10.5 %. Studies show that under the influence of enzymes the microstructure of the triticale grain surface is changing. Microphotographs characterizing grain surface structure alteration in dynamic (every 2 hours) during 10 hours of substrate hydrolysis are shown. It is found that the depth and direction of destruction process for non-starch polysaccharides of grain integument are determined by the composition of the enzyme complex preparation and duration of exposure. It is found, that xylanase involved in the modification of hemicelluloses fiber having both longitudinal and radial orientation. Hydrolysis of non-starch polysaccharides from grain shells led to increase of antioxidant activity. Ferulic acid was identified in alcoholic extract of triticale grain after enzymatic hydrolysis under the influence of complex preparation containing cellulase, xylanase and β-glucanase. Grain processing by independent enzymes containing in complex preparation (xylanase and β-glucanase) shows that more significant role in polysaccharide complex composition and grain surface microstructure alteration belongs to xylanase. Grain processing by independent of cellulolytic enzymes may decrease the strength of pericarp tissue of grain and improved sensory characteristics of the bread.
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Kuznetsova E, Cherepnina L, Motyleva S, Brindza J. Redistribution of mineral elements in wheat grain when applying the complex enzyme preparations based on phytase. POTRAVINARSTVO 2016. [DOI: 10.5219/413] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Biogenic minerals play an important role in the whole human nutrition, but they are included in the grain of the phytates that reduces their bioavailability. Whole wheat bread is generally considered a healthy food, but the presence of mineral elements in it is insignificant, because of weak phytate degradation. From all sources of exogenous phytase the most productive are microscopic fungi. To accelerate the process of transition hard mineral elements are mobilized to implement integrated cellulolytic enzyme preparation based on the actions of phytase (producer is Penicillium canescens). Phytase activity was assessed indirectly by the rate of release of phosphate from the substrate. It has been established that the release rate of the phosphoric acid substrate is dependent on the composition of the drug and the enzyme complex is determined by the presence of xylanase. The presented experimental data shows that a cellulase treatment of the grain in conjunction with the β-glucanase or xylanase leading to an increase in phytase activity could be 1.4 - 2.3 times as compared with the individual enzymes. As a result of concerted action of enzymes complex preparation varies topography grain, increase the pore sizes in seed and fruit shells that facilitate the penetration of the enzyme phytase in the aleurone layer to the site of phytin hydrolysis and leads to an increase in phytase activity. In terms of rational parameters of enzymatic hydrolysis, the distribution of mineral elements in the anatomical parts of the grain after processing complex enzyme preparation with the help of X-ray detector EMF miniCup system in a scanning electron microscope JEOL JSM 6390 were investigated. When processing enzyme preparation wheat trend in the distribution of mineral elements, characteristic of grain - the proportion of these elements in the aleurone layer decreases, and in the endosperm increases. Because dietary fiber and phytate found together in the peripheral layers of fiber-rich grains, it is difficult to separate the effects of degradation processes nonstarch polysaccharides and fiberphytate redistribution of polyvalent metal ions. However, studies have shown that phytase - an effective mechanism for regulating mineral nutrient diet. Application of phytase in grain bakery technology will increase the biological value of the product.
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Dotsenko AS, Gusakov AV, Volkov PV, Rozhkova AM, Sinitsyn AP. N-linked glycosylation of recombinant cellobiohydrolase I (Cel7A) fromPenicillium verruculosumand its effect on the enzyme activity. Biotechnol Bioeng 2015; 113:283-91. [DOI: 10.1002/bit.25812] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 07/07/2015] [Accepted: 08/16/2015] [Indexed: 01/08/2023]
Affiliation(s)
- Anna S. Dotsenko
- Department of Chemistry; M. V. Lomonosov Moscow State University; Vorobyovy Gory 1/11 Moscow 119899 Russia
| | - Alexander V. Gusakov
- Department of Chemistry; M. V. Lomonosov Moscow State University; Vorobyovy Gory 1/11 Moscow 119899 Russia
- A. N. Bach Institute of Biochemistry; Russian Academy of Sciences; Leninsky Pr. 33 Moscow 119991 Russia
| | - Pavel V. Volkov
- A. N. Bach Institute of Biochemistry; Russian Academy of Sciences; Leninsky Pr. 33 Moscow 119991 Russia
| | - Aleksandra M. Rozhkova
- Department of Chemistry; M. V. Lomonosov Moscow State University; Vorobyovy Gory 1/11 Moscow 119899 Russia
- A. N. Bach Institute of Biochemistry; Russian Academy of Sciences; Leninsky Pr. 33 Moscow 119991 Russia
| | - Arkady P. Sinitsyn
- Department of Chemistry; M. V. Lomonosov Moscow State University; Vorobyovy Gory 1/11 Moscow 119899 Russia
- A. N. Bach Institute of Biochemistry; Russian Academy of Sciences; Leninsky Pr. 33 Moscow 119991 Russia
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25
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Heterologous β-glucosidase in a fungal cellulase system: Comparison of different methods for development of multienzyme cocktails. Process Biochem 2015. [DOI: 10.1016/j.procbio.2015.05.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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26
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Heterologous expression and characterization of α-l-arabinofuranosidase 4 from Penicillium purpurogenum and comparison with the other isoenzymes produced by the fungus. Fungal Biol 2015; 119:641-7. [DOI: 10.1016/j.funbio.2015.04.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 03/23/2015] [Accepted: 04/02/2015] [Indexed: 11/18/2022]
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27
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Volkov PV, Rozhkova AM, Gusakov AV, Sinitsyn AP. Homologous cloning, purification and characterization of highly active cellobiohydrolase I (Cel7A) from Penicillium canescens. Protein Expr Purif 2014; 103:1-7. [PMID: 25162433 DOI: 10.1016/j.pep.2014.08.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 08/13/2014] [Accepted: 08/14/2014] [Indexed: 01/13/2023]
Abstract
Penicillium canescens is a filamentous fungus that normally does not secrete notable levels of cellulase activity. Cellobiohydrolase I of P. canescens (PcCel7A) was homologously cloned into a host strain RN3-11-7 (niaD-) and then expressed under the control of a strong xylA promoter. Using three steps of chromatography, PcCel7A was purified. The enzyme displayed maximum activity at pH 4.0-4.5. PcCel7A was stable at 50°C and pH 4.5 at least for 3h, while at 60°C it lost 45% of activity after 30min of incubation. When equalized by protein concentration, PcCel7A demonstrated a higher performance in prolonged hydrolysis of Avicel and milled aspen wood than CBH I (Cel7A) from Trichoderma reesei, the most industrially utilized cellulase at this moment. The high catalytic efficiency of the PcCel7A makes it a potential candidate for industrial applications.
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Affiliation(s)
- Pavel V Volkov
- A. N. Bach Institute of Biochemistry, Russian Academy of Sciences, Leninsky Pr. 33, Moscow 119071, Russia
| | - Alexandra M Rozhkova
- A. N. Bach Institute of Biochemistry, Russian Academy of Sciences, Leninsky Pr. 33, Moscow 119071, Russia
| | - Alexander V Gusakov
- A. N. Bach Institute of Biochemistry, Russian Academy of Sciences, Leninsky Pr. 33, Moscow 119071, Russia; Department of Chemistry, M. V. Lomonosov Moscow State University, Vorobyovy Gory 1/11, Moscow 119991, Russia.
| | - Arkady P Sinitsyn
- A. N. Bach Institute of Biochemistry, Russian Academy of Sciences, Leninsky Pr. 33, Moscow 119071, Russia; Department of Chemistry, M. V. Lomonosov Moscow State University, Vorobyovy Gory 1/11, Moscow 119991, Russia
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28
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Properties of Selected Hemicellulases of a Multi-Enzymatic System fromPenicillium funiculosum. Biosci Biotechnol Biochem 2014; 73:1286-92. [DOI: 10.1271/bbb.80808] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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29
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Gusakov AV, Sinitsyna OA, Rozhkova AM, Sinitsyn AP. N-Glycosylation patterns in two α-l-arabinofuranosidases from Penicillium canescens belonging to the glycoside hydrolase families 51 and 54. Carbohydr Res 2013; 382:71-6. [DOI: 10.1016/j.carres.2013.08.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Revised: 08/15/2013] [Accepted: 08/28/2013] [Indexed: 10/26/2022]
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30
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Tishkov VI, Gusakov AV, Cherkashina AS, Sinitsyn AP. Engineering the pH-optimum of activity of the GH12 family endoglucanase by site-directed mutagenesis. Biochimie 2013; 95:1704-10. [PMID: 23774299 DOI: 10.1016/j.biochi.2013.05.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Accepted: 05/23/2013] [Indexed: 11/25/2022]
Abstract
Endo-1,4-β-glucanase from Penicillium verruculosum (PvEGIII) belongs to family 12 of glycoside hydrolases (GH12). Analysis of the enzyme 3D model structure showed that the amino acid residue Asp98 may directly affect the pH-profile of enzyme activity since it is located at the distance of hydrogen bond formation from Glu203 that plays the role of a general acid in catalysis. The gene encoding the PvEGIII was cloned into Escherichia coli. After the deletion of two introns, a plasmid construction was obtained allowing the PvEGIII expression in E. coli. Using site-directed mutagenesis, the Asp98Asn mutant of the PvEGIII was obtained. Both the wild type and mutant PvEGIIIs were expressed in E. coli with a yield of up to 1 g/L and then isolated in a highly purified form. The enzyme specific activity against soluble carboxymethylcellulose was not changed after a single amino acid substitution. However, the pH-optimum of activity of the mutant PvEGIII was shifted from pH 4.0 to 5.1, compared to the wild type enzyme. The shift in the enzyme pH-optimum to more neutral pH was also observed on insoluble cellulose, in the process of enzymatic depigmentation of denim fabric. Similar situation featuring the effect of the Asp/Asn residue, located near the Glu catalytic residue, on the enzyme activity pH-profile has previously been described for xylanases of the GH11 family. Thus, the glycoside hydrolases belonging to the GH11 and GH12 families function by a rather similar mechanism of catalysis.
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Affiliation(s)
- Vladimir I Tishkov
- Department of Chemistry, M. V. Lomonosov Moscow State University, Leninskie Gory 1/11, Moscow 119991, Russia
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31
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Morozova VV, Gusakov AV, Andrianov RM, Pravilnikov AG, Osipov DO, Sinitsyn AP. Cellulases of Penicillium verruculosum. Biotechnol J 2010; 5:871-80. [PMID: 20540109 DOI: 10.1002/biot.201000050] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Nine major cellulolytic enzymes were isolated from a culture broth of a mutant strain of the fungus Penicillium verruculosum: five endo-1, 4-beta-glucanases (EGs) having molecular masses 25, 33, 39, 52, and 70 kDa, and four cellobiohydrolases (CBHs: 50, 55, 60, and 66 kDa). Based on amino acid similarities of short sequenced fragments and peptide mass fingerprinting, the isolated enzymes were preliminary classified into different families of glycoside hydrolases: Cel5A (EG IIa, 39 kDa), Cel5B (EG IIb, 33 kDa), Cel6A (CBH II, two forms: 50 and 60 kDa), Cel7A (CBH I: 55 and 66 kDa), Cel7B (EG I: 52 and 70 kDa). The 25 kDa enzyme was identical to the previously isolated Cel12A (EG III). The family assignment was further confirmed by the studies of the substrate specificity of the purified enzymes. High-molecular-weight forms of the Cel6A, Cel7A, and Cel7B were found to possess a cellulose-binding module (CBM), while the catalytically active low-molecular-weight forms of the enzymes, as well as other cellulases, lacked the CBM. Properties of the isolated enzymes, such as substrate specificity toward different polysaccharides and synthetic glycosides, effect of pH and temperature on the enzyme activity and stability, adsorption on Avicel cellulose and kinetics of its hydrolysis, were investigated.
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Affiliation(s)
- Valeria V Morozova
- Department of Chemistry, M. V. Lomonosov Moscow State University, Vorobyovy Gory, Moscow, Russia
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Ravanal MC, Callegari E, Eyzaguirre J. Novel bifunctional alpha-L-arabinofuranosidase/xylobiohydrolase (ABF3) from Penicillium purpurogenum. Appl Environ Microbiol 2010; 76:5247-53. [PMID: 20562284 PMCID: PMC2916492 DOI: 10.1128/aem.00214-10] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2010] [Accepted: 06/09/2010] [Indexed: 11/20/2022] Open
Abstract
The soft rot fungus Penicillium purpurogenum grows on a variety of natural substrates and secretes various isoforms of xylanolytic enzymes, including three arabinofuranosidases. This work describes the biochemical properties as well as the nucleotide and amino acid sequences of arabinofuranosidase 3 (ABF3). This enzyme has been purified to homogeneity. It is a glycosylated monomer with a molecular weight of 50,700 and can bind cellulose. The enzyme is active with p-nitrophenyl alpha-L-arabinofuranoside and p-nitrophenyl beta-D-xylopyranoside with a K(m) of 0.65 mM and 12 mM, respectively. The enzyme is active on xylooligosaccharides, yielding products of shorter length, including xylose. However, it does not hydrolyze arabinooligosaccharides. When assayed with polymeric substrates, little arabinose is liberated from arabinan and debranched arabinan; however, it hydrolyzes arabinose and releases xylooligosaccharides from arabinoxylan. Sequencing both ABF3 cDNA and genomic DNA reveals that this gene does not contain introns and that the open reading frame is 1,380 nucleotides in length. The deduced mature protein is composed of 433 amino acids residues and has a calculated molecular weight of 47,305. The deduced amino acid sequence has been validated by mass spectrometry analysis of peptides from purified ABF3. A total of 482 bp of the promoter were sequenced; putative binding sites for transcription factors such as CreA (four), XlnR (one), and AreA (three) and two CCAAT boxes were found. The enzyme has two domains, one similar to proteins of glycosyl hydrolase family 43 at the amino-terminal end and a family 6 carbohydrate binding module at the carboxyl end. ABF3 is the first described modular family 43 enzyme from a fungal source, having both alpha-L-arabinofuranosidase and xylobiohydrolase functionalities.
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Affiliation(s)
- María Cristina Ravanal
- Departamento de Ciencias Biológicas, Universidad Andrés Bello, Santiago, Chile, BRIN-USDSSOM Proteomics Facility, University of South Dakota, Vermillion, South Dakota
| | - Eduardo Callegari
- Departamento de Ciencias Biológicas, Universidad Andrés Bello, Santiago, Chile, BRIN-USDSSOM Proteomics Facility, University of South Dakota, Vermillion, South Dakota
| | - Jaime Eyzaguirre
- Departamento de Ciencias Biológicas, Universidad Andrés Bello, Santiago, Chile, BRIN-USDSSOM Proteomics Facility, University of South Dakota, Vermillion, South Dakota
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33
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Semenova MV, Drachevskaya MI, Sinitsyna OA, Gusakov AV, Sinitsyn AP. Isolation and properties of extracellular β-xylosidases from fungi Aspergillus japonicus and Trichoderma reesei. BIOCHEMISTRY (MOSCOW) 2009; 74:1002-8. [DOI: 10.1134/s0006297909090089] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Brazdova B, Tan NS, Samoshina NM, Samoshin VV. Novel easily accessible glucosidase inhibitors: 4-hydroxy-5-alkoxy-1,2-cyclohexanedicarboxylic acids. Carbohydr Res 2008; 344:311-21. [PMID: 19084826 DOI: 10.1016/j.carres.2008.11.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2008] [Revised: 11/10/2008] [Accepted: 11/14/2008] [Indexed: 11/29/2022]
Abstract
Glycosidases are very important enzymes involved in a variety of biochemical processes with a special importance to biotechnology, food industry, and pharmacology. Novel structurally simple inhibitors derived from cyclohexane-1,2-dicarboxylic acids were synthesized and tested against several fungal glycosidases from Aspergillus oryzae and Penicilliumcanescens. The presence of at least two carboxylic groups and one hydroxy group was essential for efficient inhibition. Significant selective inhibition was observed for alpha- and beta-glucosidases, the magnitude of which depended on the configuration of substituents; inhibition increased for beta-glucosidase by lengthening the alkoxy group of the inhibitor.
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Affiliation(s)
- Barbora Brazdova
- Department of Chemistry, University of the Pacific, Stockton, CA 95211, USA
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Fritz M, Ravanal MC, Braet C, eyzaguirre J. A family 51 α-l-arabinofuranosidase from Penicillium purpurogenum: purification, properties and amino acid sequence. ACTA ACUST UNITED AC 2008; 112:933-42. [DOI: 10.1016/j.mycres.2008.01.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2007] [Revised: 12/24/2007] [Accepted: 01/24/2008] [Indexed: 10/22/2022]
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Ustinov BB, Gusakov AV, Antonov AI, Sinitsyn AP. Comparison of properties and mode of action of six secreted xylanases from Chrysosporium lucknowense. Enzyme Microb Technol 2008. [DOI: 10.1016/j.enzmictec.2008.01.017] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Chávez R, Bull P, Eyzaguirre J. The xylanolytic enzyme system from the genus Penicillium. J Biotechnol 2006; 123:413-33. [PMID: 16569456 DOI: 10.1016/j.jbiotec.2005.12.036] [Citation(s) in RCA: 108] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2005] [Revised: 12/06/2005] [Accepted: 12/23/2005] [Indexed: 11/22/2022]
Abstract
In nature, there are numerous microorganisms that efficiently degrade xylan, a major component of lignocellulose. In particular, filamentous fungi have demonstrated a great capability for secreting a wide range of xylanases, being the genus Aspergillus and Trichoderma the most extensively studied and reviewed among the xylan-producing fungi. However, an important amount of information about the production and genetics of xylanases from fungi of the genus Penicillium has accumulated in recent years. A great number of Penicillia are active producers of xylanolytic enzymes, and the use of xylanases from these species has acquired growing importance in biotechnological applications. This review summarizes our current knowledge about the properties, genetics, expression and biotechnological potential of xylanases from the genus Penicillium.
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Affiliation(s)
- Renato Chávez
- Unidad de Biotecnología, Instituto de Investigaciones Agropecuarias (INIA), CRI-Carillanca, Temuco, Chile
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