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Xing Y, Clark JR, Chang JD, Zulk JJ, Chirman DM, Piedra FA, Vaughan EE, Hernandez Santos HJ, Patras KA, Maresso AW. Progress toward a vaccine for extraintestinal pathogenic E. coli (ExPEC) II: efficacy of a toxin-autotransporter dual antigen approach. Infect Immun 2024; 92:e0044023. [PMID: 38591882 DOI: 10.1128/iai.00440-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 03/18/2024] [Indexed: 04/10/2024] Open
Abstract
Extraintestinal pathogenic Escherichia coli (ExPEC) is a leading cause of worldwide morbidity and mortality, the top cause of antimicrobial-resistant (AMR) infections, and the most frequent cause of life-threatening sepsis and urinary tract infections (UTI) in adults. The development of an effective and universal vaccine is complicated by this pathogen's pan-genome, its ability to mix and match virulence factors and AMR genes via horizontal gene transfer, an inability to decipher commensal from pathogens, and its intimate association and co-evolution with mammals. Using a pan virulome analysis of >20,000 sequenced E. coli strains, we identified the secreted cytolysin α-hemolysin (HlyA) as a high priority target for vaccine exploration studies. We demonstrate that a catalytically inactive pure form of HlyA, expressed in an autologous host using its own secretion system, is highly immunogenic in a murine host, protects against several forms of ExPEC infection (including lethal bacteremia), and significantly lowers bacterial burdens in multiple organ systems. Interestingly, the combination of a previously reported autotransporter (SinH) with HlyA was notably effective, inducing near complete protection against lethal challenge, including commonly used infection strains ST73 (CFT073) and ST95 (UTI89), as well as a mixture of 10 of the most highly virulent sequence types and strains from our clinical collection. Both HlyA and HlyA-SinH combinations also afforded some protection against UTI89 colonization in a murine UTI model. These findings suggest recombinant, inactive hemolysin and/or its combination with SinH warrant investigation in the development of an E. coli vaccine against invasive disease.
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Affiliation(s)
- Yikun Xing
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA
- TAILOR Labs, Vaccine Development Group, Baylor College of Medicine, Houston, Texas, USA
| | - Justin R Clark
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA
- TAILOR Labs, Vaccine Development Group, Baylor College of Medicine, Houston, Texas, USA
| | - James D Chang
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA
- TAILOR Labs, Vaccine Development Group, Baylor College of Medicine, Houston, Texas, USA
| | - Jacob J Zulk
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA
- TAILOR Labs, Vaccine Development Group, Baylor College of Medicine, Houston, Texas, USA
| | - Dylan M Chirman
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA
- TAILOR Labs, Vaccine Development Group, Baylor College of Medicine, Houston, Texas, USA
| | - Felipe-Andres Piedra
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA
| | - Ellen E Vaughan
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA
| | - Haroldo J Hernandez Santos
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA
- TAILOR Labs, Vaccine Development Group, Baylor College of Medicine, Houston, Texas, USA
| | - Kathryn A Patras
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA
- Alkek Center for Metagenomics and Microbiome Research, Baylor College of Medicine, Houston, Texas, USA
| | - Anthony W Maresso
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA
- TAILOR Labs, Vaccine Development Group, Baylor College of Medicine, Houston, Texas, USA
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Liu X, Yang Y, Takizawa S, Graham NJD, Chen C, Pu J, Ng HY. New insights into the concentration-dependent regulation of membrane biofouling formation via continuous nanoplastics stimulation. Water Res 2024; 253:121268. [PMID: 38340700 DOI: 10.1016/j.watres.2024.121268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/17/2024] [Accepted: 02/04/2024] [Indexed: 02/12/2024]
Abstract
The release of nanoplastics (NPs) into the environment is growing due to the extensive use of plastic products. Numerous studies have confirmed the negative effects of NPs on microorganisms, which poses uncertainties concerning their impact on nanofiltration (NF) membrane biofouling. This study investigated the initial cell adhesion process, NF membrane biofouling kinetic processes and bacterial responses of Pseudomonas aeruginosa (P. aeruginosa) exposed to varied NPs concentrations (0-50 mg·L-1). Transcriptome analysis demonstrated that low concentration of NPs (0.1 mg·L-1) promoted bacterial quorum sensing, energy metabolism, exopolysaccharide biosynthesis and bacterial secretion systems. Correspondingly, the polysaccharide content increased remarkably to 2.77 times the unexposed control, which served as a protective barrier for bacteria to avoid the impact of NPs-induced stress. Suppressed homologous recombination, microbial metabolic potentials and flagellar assembly were detected in bacteria exposed to a high concentration (50 mg·L-1) of NPs, mainly due to the triggered reactive oxygen species (ROS) generation, genomic DNA damage, and decreased energy production. Overall, enhanced formation of the extracellular polymeric substances (EPS) and aggravated membrane flux decline were observed when NPs interacted with the membrane surface by cell secretions (low NPs levels) or cell lysis (high NPs levels). These findings shed light on understanding the microbial metabolism mechanism and membrane biofouling propensity with NPs stress at both the molecular and gene levels.
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Affiliation(s)
- Xinhui Liu
- School of Environment, Beijing Normal University, Beijing 100875, China
| | - Yu Yang
- School of Environment, Beijing Normal University, Beijing 100875, China.
| | - Satoshi Takizawa
- Department of Urban Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Nigel J D Graham
- Department of Civil and Environmental Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Chao Chen
- School of Environment, Beijing Normal University, Beijing 100875, China
| | - Jian Pu
- Institute for the Advanced Study of Sustainability, United Nations University, Jingumae 5-53-70, Shibuya-ku, Tokyo 150-8925, Japan; Institute for Future Initiatives, The University of Tokyo, Tokyo 113-0033, Japan
| | - How Yong Ng
- Center for Water Research, Advanced Institute of Natural Sciences, Beijing Normal University, Zhuhai 519087, China; National University of Singapore Environmental Research Institute, 5A Engineering Drive 1, Singapore 117411, Singapore
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Li S, Huang J, Tong L, Li Q, Zhou H, Deng X, Zhou J, Xie Z, Liu X, Liang Y. Insights into the biosynthesis of palladium nanoparticles for oxygen reduction reaction by genetically engineered bacteria of Shewanella oneidensis MR-1. Microb Biotechnol 2024; 17:e14469. [PMID: 38647123 PMCID: PMC11034004 DOI: 10.1111/1751-7915.14469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 03/04/2024] [Accepted: 03/19/2024] [Indexed: 04/25/2024] Open
Abstract
Owing to the increasing need for green synthesis and environmental protection, the utilization of biological organism-derived carbons as supports for noble-metal electrocatalysts has garnered public interest. Nevertheless, the mechanism by which microorganisms generate nanometals has not been fully understood yet. In the present study, we used genetically engineered bacteria of Shewanella oneidensis MR-1 (∆SO4317, ∆SO4320, ∆SO0618 and ∆SO3745) to explore the effect of surface substances including biofilm-associated protein (bpfA), protein secreted by type I secretion systems (TISS) and type II secretion systems (T2SS), and lipopolysaccharide in microbial synthesis of metal nanoparticles. Results showed Pd/∆SO4317 (the catalyst prepared with the mutant ∆SO4317) shows better performance than other biocatalysts and commercial Pd/C, where the mass activity (MA) and specific activity (SA) of Pd/∆SO4317 are 3.1 and 2.1 times higher than those of commercial Pd/C, reaching 257.49 A g-1 and 6.85 A m-2 respectively. It has been found that the exceptional performance is attributed to the smallest particle size and the presence of abundant functional groups. Additionally, the absence of biofilms has been identified as a crucial factor in the formation of high-quality bio-Pd. Because the absence of biofilm can minimize metal agglomeration, resulting in uniform particle size dispersion. These findings provide valuable mechanical insights into the generation of biogenic metal nanoparticles and show potential industrial and environmental applications, especially in accelerating oxygen reduction reactions.
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Affiliation(s)
- Shihui Li
- School of Minerals Processing and BioengineeringCentral South UniversityChangshaChina
| | - Jingwen Huang
- School of Minerals Processing and BioengineeringCentral South UniversityChangshaChina
| | - Linjun Tong
- Department of Automotive EngineeringFoshan PolytechnicFoshanChina
| | - Qingxin Li
- School of Minerals Processing and BioengineeringCentral South UniversityChangshaChina
| | - Haikun Zhou
- School of Chemical EngineeringUniversity of New South WalesSydneyNew South WalesAustralia
| | - Xiaoting Deng
- College of Food and Chemical EngineeringShaoyang UniversityShaoyangChina
| | - Jin Zhou
- School of Minerals Processing and BioengineeringCentral South UniversityChangshaChina
| | - Zhiyong Xie
- State Key Laboratory of Powder Metallurgy & Science and Technology on High Strength Structural Materials LaboratoryCentral South UniversityChangshaChina
| | - Xueduan Liu
- School of Minerals Processing and BioengineeringCentral South UniversityChangshaChina
| | - Yili Liang
- School of Minerals Processing and BioengineeringCentral South UniversityChangshaChina
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Pourhassan ZN, Cui H, Muckhoff N, Davari MD, Smits SHJ, Schwaneberg U, Schmitt L. A step forward to the optimized HlyA type 1 secretion system through directed evolution. Appl Microbiol Biotechnol 2023:10.1007/s00253-023-12653-7. [PMID: 37405436 PMCID: PMC10386944 DOI: 10.1007/s00253-023-12653-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 06/08/2023] [Accepted: 06/19/2023] [Indexed: 07/06/2023]
Abstract
Secretion of proteins into the extracellular space has great advantages for the production of recombinant proteins. Type 1 secretion systems (T1SS) are attractive candidates to be optimized for biotechnological applications, as they have a relatively simple architecture compared to other classes of secretion systems. A paradigm of T1SS is the hemolysin A type 1 secretion system (HlyA T1SS) from Escherichia coli harboring only three membrane proteins, which makes the plasmid-based expression of the system easy. Although for decades the HlyA T1SS has been successfully applied for secretion of a long list of heterologous proteins from different origins as well as peptides, but its utility at commercial scales is still limited mainly due to low secretion titers of the system. To address this drawback, we engineered the inner membrane complex of the system, consisting of HlyB and HlyD proteins, following KnowVolution strategy. The applied KnowVolution campaign in this study provided a novel HlyB variant containing four substitutions (T36L/F216W/S290C/V421I) with up to 2.5-fold improved secretion for two hydrolases, a lipase and a cutinase. KEY POINTS: • An improvement in protein secretion via the use of T1SS • Reaching almost 400 mg/L of soluble lipase into the supernatant • A step forward to making E. coli cells more competitive for applying as a secretion host.
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Affiliation(s)
- Zohreh N Pourhassan
- Institute of Biochemistry, Heinrich Heine University, Universitätsstr. 1, 40225, Düsseldorf, Germany
| | - Haiyang Cui
- Institute of Biotechnology, RWTH Aachen University, Worringerweg 3, 52074, Aachen, Germany
- DWI-Leibniz Institute for Interactive Materials, Forckenbeckstraße 50, 52056, Aachen, Germany
- Present Address: Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, 1206 West Gregory Drive, Urbana, IL, 61801, USA
| | - Neele Muckhoff
- Institute of Biochemistry, Heinrich Heine University, Universitätsstr. 1, 40225, Düsseldorf, Germany
| | - Mehdi D Davari
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120, Halle, Germany
| | - Sander H J Smits
- Institute of Biochemistry, Heinrich Heine University, Universitätsstr. 1, 40225, Düsseldorf, Germany
| | - Ulrich Schwaneberg
- Institute of Biotechnology, RWTH Aachen University, Worringerweg 3, 52074, Aachen, Germany
- DWI-Leibniz Institute for Interactive Materials, Forckenbeckstraße 50, 52056, Aachen, Germany
| | - Lutz Schmitt
- Institute of Biochemistry, Heinrich Heine University, Universitätsstr. 1, 40225, Düsseldorf, Germany.
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Abstract
Type I secretion systems (T1SS) are versatile molecular machines for protein transport across the Gram-negative cell envelope. The archetypal Type I system mediates secretion of the Escherichia coli hemolysin, HlyA. This system has remained the pre-eminent model of T1SS research since its discovery. The classic description of a T1SS is composed of three proteins: an inner membrane ABC transporter, a periplasmic adaptor protein and an outer membrane factor. According to this model, these components assemble to form a continuous channel across the cell envelope, an unfolded substrate molecule is then transported in a one-step mechanism, directly from the cytosol to the extracellular milieu. However, this model does not encapsulate the diversity of T1SS that have been characterized to date. In this review, we provide an updated definition of a T1SS, and propose the subdivision of this system into five subgroups. These subgroups are categorized as T1SSa for RTX proteins, T1SSb for non-RTX Ca2+-binding proteins, T1SSc for non-RTX proteins, T1SSd for class II microcins, and T1SSe for lipoprotein secretion. Although often overlooked in the literature, these alternative mechanisms of Type I protein secretion offer many avenues for biotechnological discovery and application.
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Affiliation(s)
- Freya J Hodges
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
| | - Von Vergel L Torres
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
| | - Adam F Cunningham
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, United Kingdom
| | - Ian R Henderson
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia.
| | - Christopher Icke
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia.
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Wang C, Xiao Y, Wang Y, Liu Y, Yao Q, Zhu H. Comparative genomics and transcriptomics insight into myxobacterial metabolism potentials and multiple predatory strategies. Front Microbiol 2023; 14:1146523. [PMID: 37213496 PMCID: PMC10196010 DOI: 10.3389/fmicb.2023.1146523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 04/19/2023] [Indexed: 05/23/2023] Open
Abstract
Myxobacteria are part of the phylum Myxococcota, encompassing four orders. Most of them display complex lifestyles and broad predation profiles. However, metabolic potential and predation mechanisms of different myxobacteria remains poorly understood. Herein, we used comparative genomics and transcriptomics to analyze metabolic potentials and differentially expressed gene (DEG) profiles of Myxococcus xanthus monoculture (Mx) compared to coculture with Escherichia coli (MxE) and Micrococcus luteus (MxM) prey. The results showed that myxobacteria had conspicuous metabolic deficiencies, various protein secretion systems (PSSs) and the common type II secretion system (T2SS). RNA-seq data demonstrated that M. xanthus overexpressed the potential predation DEGs, particularly those encoding T2SS, the tight adherence (Tad) pilus, different secondary metabolites (myxochelin A/B, myxoprincomide, myxovirescin A1, geosmin and myxalamide), glycosyl transferases and peptidase during predation. Furthermore, the myxalamide biosynthesis gene clusters, two hypothetical gene clusters and one arginine biosynthesis clusters were highly differential expressed in MxE versus MxM. Additionally, homologue proteins of the Tad (kil) system and five secondary metabolites were in different obligate or facultative predators. Finally, we provided a working model for exhibiting multiple predatory strategies when M. xanthus prey on M. luteus and E. coli. These results might spur application-oriented research on the development of novel antibacterial strategies.
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Affiliation(s)
- Chunling Wang
- College of Life Science, Huizhou University, Huizhou, Guangdong, China
- Key Laboratory of Agricultural Microbiomics and Precision Application (MARA), Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Key Laboratory of Agricultural Microbiome (MARA), State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, Guangdong, China
| | - Yi Xiao
- Key Laboratory of Agricultural Microbiomics and Precision Application (MARA), Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Key Laboratory of Agricultural Microbiome (MARA), State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, Guangdong, China
| | - Yong Wang
- Key Laboratory of Agricultural Microbiomics and Precision Application (MARA), Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Key Laboratory of Agricultural Microbiome (MARA), State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, Guangdong, China
| | - Yumin Liu
- Key Laboratory of Agricultural Microbiomics and Precision Application (MARA), Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Key Laboratory of Agricultural Microbiome (MARA), State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, Guangdong, China
| | - Qing Yao
- College of Horticulture, South China Agricultural University, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Guangzhou, Guangdong, China
| | - Honghui Zhu
- Key Laboratory of Agricultural Microbiomics and Precision Application (MARA), Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Key Laboratory of Agricultural Microbiome (MARA), State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, Guangdong, China
- *Correspondence: Honghui Zhu,
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Pourhassan N. Z, Hachani E, Spitz O, Smits SHJ, Schmitt L. Investigations on the substrate binding sites of hemolysin B, an ABC transporter, of a type 1 secretion system. Front Microbiol 2022; 13:1055032. [PMID: 36532430 PMCID: PMC9751043 DOI: 10.3389/fmicb.2022.1055032] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 11/09/2022] [Indexed: 03/23/2024] Open
Abstract
The ABC transporter hemolysin B (HlyB) is the key protein of the HlyA secretion system, a paradigm of type 1 secretion systems (T1SS). T1SS catalyze the one-step substrate transport across both membranes of Gram-negative bacteria. The HlyA T1SS is composed of the ABC transporter (HlyB), the membrane fusion protein (HlyD), and the outer membrane protein TolC. HlyA is a member of the RTX (repeats in toxins) family harboring GG repeats that bind Ca2+ in the C-terminus upstream of the secretion signal. Beside the GG repeats, the presence of an amphipathic helix (AH) in the C-terminus of HlyA is essential for secretion. Here, we propose that a consensus length between the GG repeats and the AH affects the secretion efficiency of the heterologous RTX secreted by the HlyA T1SS. Our in silico studies along with mutagenesis and biochemical analysis demonstrate that there are two binding pockets in the nucleotide binding domain of HlyB for HlyA. The distances between the domains of HlyB implied to interact with HlyA indicated that simultaneous binding of the substrate to both cytosolic domains of HlyB, the NBD and CLD, is possible and required for efficient substrate secretion.
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Affiliation(s)
| | - Eymen Hachani
- Institute of Biochemistry, Heinrich Heine University, Düsseldorf, Germany
| | - Olivia Spitz
- Institute of Biochemistry, Heinrich Heine University, Düsseldorf, Germany
| | - Sander H. J. Smits
- Institute of Biochemistry, Heinrich Heine University, Düsseldorf, Germany
- Center for Structural Studies, Heinrich Heine University, Düsseldorf, Germany
| | - Lutz Schmitt
- Institute of Biochemistry, Heinrich Heine University, Düsseldorf, Germany
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Pourhassan N. Z, Cui H, Khosa S, Davari MD, Jaeger KE, Smits SHJ, Schwaneberg U, Schmitt L. Optimized Hemolysin type 1 secretion system in Escherichia coli by directed evolution of the Hly enhancer fragment and including a terminator region. Chembiochem 2022; 23:e202100702. [PMID: 35062047 PMCID: PMC9306574 DOI: 10.1002/cbic.202100702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/21/2022] [Indexed: 11/26/2022]
Abstract
Type 1 secretion systems (T1SS) have a relatively simple architecture compared to other classes of secretion systems and therefore, are attractive to be optimized by protein engineering. Here, we report a KnowVolution campaign for the hemolysin (Hly) enhancer fragment, an untranslated region upstream of the hlyA gene, of the hemolysin T1SS of Escherichia coli to enhance its secretion efficiency. The best performing variant of the Hly enhancer fragment contained five nucleotide mutations at five positions (A30U, A36U, A54G, A81U, and A116U) resulted in a 2‐fold increase in the secretion level of a model lipase fused to the secretion carrier HlyA1. Computational analysis suggested that altered affinity to the generated enhancer fragment towards the S1 ribosomal protein contributes to the enhanced secretion levels. Furthermore, we demonstrate that involving a native terminator region along with the generated Hly enhancer fragment increased the secretion levels of the Hly system up to 5‐fold.
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Affiliation(s)
- Zohreh Pourhassan N.
- Heinrich-Heine-Universität Düsseldorf: Heinrich-Heine-Universitat Dusseldorf Institute of Biochemistry GERMANY
| | - Haiyang Cui
- RWTH Aachen: Rheinisch-Westfalische Technische Hochschule Aachen Institute of Biotechnology GERMANY
| | - Sakshi Khosa
- Heinrich Heine University Düsseldorf: Heinrich-Heine-Universitat Dusseldorf Institute of Biochemistry GERMANY
| | - Mehdi D. Davari
- Leibniz Institute of Plant Biochemistry: Leibniz-Institut fur Pflanzenbiochemie Department of Bioorganic Chemistry GERMANY
| | - Karl-Erich Jaeger
- Forschungszentrum Julich ICG: Forschungszentrum Julich GmbH Institute of Molecular Enzyme Technology GERMANY
| | - Sander H. J. Smits
- Heinrich-Heine-Universität Düsseldorf: Heinrich-Heine-Universitat Dusseldorf Institute of Biochemistry GERMANY
| | - Ulrich Schwaneberg
- RWTH Aachen: Rheinisch-Westfalische Technische Hochschule Aachen Institute of Biotechnology GERMANY
| | - Lutz Schmitt
- Heinrich-Heine-Universität Düsseldorf: Heinrich-Heine-Universitat Dusseldorf Institute of Biochemistry Universitätsstr. 1 40225 Düsseldorf GERMANY
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