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Elpidina EN, Semashko TA, Smirnova YA, Dvoryakova EA, Dunaevsky YE, Belozersky MA, Serebryakova MV, Klyachko EV, Abd El-Latif AO, Oppert B, Filippova IY. Direct detection of cysteine peptidases for MALDI-TOF MS analysis using fluorogenic substrates. Anal Biochem 2018; 567:45-50. [PMID: 30528915 DOI: 10.1016/j.ab.2018.12.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 10/19/2018] [Accepted: 12/03/2018] [Indexed: 01/12/2023]
Abstract
A method is described for the direct detection of unstable cysteine peptidase activity in polyacrylamide gels after native electrophoresis using new selective fluorogenic peptide substrates, pyroglutamyl-phenylalanyl-alanyl-4-amino-7-methylcoumaride (Glp-Phe-Ala-AMC) and pyroglutamyl-phenylalanyl-alanyl-4-amino-7-trifluoromethyl-coumaride (Glp-Phe-Ala-AFC). The detection limit of the model enzyme papain was 17 pmol (0.29 μg) for Glp-Phe-Ala-AMC and 43 pmol (0.74 μg) for Glp-Phe-Ala-AFC, with increased sensitivity and selectivity compared to the traditional method of protein determination with Coomassie G-250 staining or detection of activity using chromogenic substrates. Using this method, we easily identified the target digestive peptidases of Tenebrio molitor larvae by matrix assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF MS) analysis. The method offers simplicity, high sensitivity, and selectivity compared to traditional methods for improved identification of unstable cysteine peptidases in multi-component biological samples.
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Affiliation(s)
- Elena N Elpidina
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, 119991, Russia
| | - Tatiana A Semashko
- Department of Chemistry, Moscow State University, Moscow, 119991, Russia
| | - Yulia A Smirnova
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, 119991, Russia
| | - Elena A Dvoryakova
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, 119991, Russia
| | - Yakov E Dunaevsky
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, 119991, Russia
| | - Mikhail A Belozersky
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, 119991, Russia
| | - Marina V Serebryakova
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, 119991, Russia
| | - Elena V Klyachko
- Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, 119071, Russia
| | - Ashraf O Abd El-Latif
- Department of Plant Protection, Faculty of Agriculture, Sohag University, Sohag, Egypt
| | - Brenda Oppert
- USDA Agricultural Research Service, Center for Grain and Animal Health Research, Manhattan, KS, 66502, USA.
| | - Irina Y Filippova
- Department of Chemistry, Moscow State University, Moscow, 119991, Russia
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Liao D, Li Y, Chen J, Yu C. A fluorescence turn-on method for real-time monitoring of protease activity based on the electron transfer between a fluorophore labeled oligonucleotide and cytochrome c. Anal Chim Acta 2013; 784:72-6. [DOI: 10.1016/j.aca.2013.04.066] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Revised: 04/24/2013] [Accepted: 04/29/2013] [Indexed: 02/04/2023]
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3
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A quantitative technique for determining proteases and their substrate specificities and pH optima in crude enzyme extracts. Anal Biochem 2009; 388:56-62. [DOI: 10.1016/j.ab.2009.01.045] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2008] [Revised: 01/20/2009] [Accepted: 01/29/2009] [Indexed: 12/29/2022]
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Bozić N, Vujcić Z. Detection and quantification of leucyl aminopeptidase after native electrophoresis using leucine-p-nitroanilide. Electrophoresis 2005; 26:2476-80. [PMID: 15920779 DOI: 10.1002/elps.200500047] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A general method for detecting leucyl aminopeptidase activity after native polyacrylamide gel electrophoresis (PAGE) in situ is described. The method is based on diazotization of p-nitroaniline, liberated in the polyacrylamide gel by leucyl aminopeptidase action on leucine-p-nitroanilide (LpNA) and subsequent coupling with a chromogen, 1-naphthylamine, until a pink azo dye product at the position of enzyme activity is obtained. A possible use of this technique for leucyl aminopeptidase detection and quantification is indicated. This method was found to be reproducible with the coefficient of variation below 15% for a 32-fold range, while the colored area of enzyme activity was in linear dependence to enzyme activity. Applications of this method with some other aminoacyl-p-nitroanilides and for detection of kidney bean leucyl aminopeptidase isoforms are demonstrated.
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Affiliation(s)
- Natasa Bozić
- Center of Chemistry, Institute of Chemistry, Technology and Metallurgy, Serbia and Montenegro.
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Lin CL, Chen HJ, Hou WC. Activity staining of glutathione peroxidase after electrophoresis on native and sodium dodecyl sulfate polyacrylamide gels. Electrophoresis 2002; 23:513-6. [PMID: 11870757 DOI: 10.1002/1522-2683(200202)23:4<513::aid-elps513>3.0.co;2-j] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Glutathione peroxidase (GSH-Px), from commercial bovine erythrocytes or ammonium sulfate fractionations (30-45%, 45-60%, 60-75% and 75-90% saturations) of ginger rhizome, was detected on polyacrylamide gels after native polyacrylamide gel electrophoresis (PAGE) or sodium dodecyl sulfate (SDS)-PAGE. The gel was submerged in a 50 mM Tris-HCl buffer (pH 7.9) containing 13 mM glutathione and 0.004% hydrogen peroxide with gentle shaking for 10-20 min. The GSH-Px activity was stained with a solution containing 1.2 mM 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and 1.6 mM phenazine methosulfate (PMS) for 10 min. The clear zone of GSH-Px activity on a purple background was found in both native and SDS-PAGE gels. This fast and sensitive method can be used in the process of enzyme purification and characterization of mammalian or plant cells.
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Affiliation(s)
- Chien-Liang Lin
- Department of Pharmacognosy, Graduate Institute of Pharmaceutical Sciences, Taipei Medical University, Taiwan
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Hou WC, Chen HJ, Lin YH, Chen YC, Yang LL, Lee MH. Activity staining of isocitrate lyase after electrophoresis on either native or sodium dodecyl sulfate polyacrylamide gels. Electrophoresis 2001; 22:2653-5. [PMID: 11545388 DOI: 10.1002/1522-2683(200108)22:13<2653::aid-elps2653>3.0.co;2-o] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Isocitrate was cleaved into succinate and glyoxylate by isocitrate lyase (ICL) in the glyoxylate cycle. We used lactate dehydrogenase as an ancillary enzyme to further metabolize the glyoxylate to glycolate in the presence of NADH. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and 2,6-dichlorophenol-indolphenol (DCPIP) were used in the coupling reactions for detecting ICL activity after electrophoresis on either native or sodium dodecyl sulfate (SDS) polyacrylamide gels. This fast and sensitive method can be used in the process of ICL enzyme purification and characterization.
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Affiliation(s)
- W C Hou
- Graduate Institute of Pharmacognosy Science, Taipei Medical University, Taiwan.
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Abbenante G, Leung D, Bond T, Fairlie DP. An efficient Fmoc strategy for the rapid synthesis of peptide para-nitroanilides. ACTA ACUST UNITED AC 2000. [DOI: 10.1007/bf02443598] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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