1
|
Brulé M, Glaz M, Belloir C, Poirier N, Moitrier L, Neiers F, Briand L. Bacterial expression and purification of vertebrate odorant-binding proteins. Methods Enzymol 2020; 642:125-150. [PMID: 32828250 DOI: 10.1016/bs.mie.2020.05.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Vertebrate odorant-binding proteins (OBPs) are small soluble proteins abundantly secreted in the olfactory mucus of many animal species, including humans. Vertebrate OBPs reversibly bind odorant molecules with micromolar range affinities. Although their physiological role is not clearly understood, OBPs are proposed to carry airborne odorants toward membrane olfactory receptors through the nasal mucus. Measurements of odorant-OBP interactions and structural studies require a large amount of pure OBPs devoid of ligands. The bacterial expression system is the first choice for expressing vertebrate OBPs used in our laboratory and others. This system generally produces OBPs in large amounts without major problems. In this chapter, we describe the milligram-scale production of recombinant pig OBP1 (pOBP1) in E. coli. The different steps of expression and purification are presented and discussed. Protocols for secondary structures investigation by circular dichroism and binding properties of the recombinant protein are also provided. More generally, these approaches can be used to produce and characterize any vertebrate OBPs for use in functional and structural studies.
Collapse
Affiliation(s)
- Marine Brulé
- Centre des Sciences du Goût et de l'Alimentation, AgroSup Dijon, CNRS, INRAE, Université Bourgogne Franche-Comté, Dijon, France
| | - Margot Glaz
- Centre des Sciences du Goût et de l'Alimentation, AgroSup Dijon, CNRS, INRAE, Université Bourgogne Franche-Comté, Dijon, France
| | - Christine Belloir
- Centre des Sciences du Goût et de l'Alimentation, AgroSup Dijon, CNRS, INRAE, Université Bourgogne Franche-Comté, Dijon, France
| | - Nicolas Poirier
- Centre des Sciences du Goût et de l'Alimentation, AgroSup Dijon, CNRS, INRAE, Université Bourgogne Franche-Comté, Dijon, France
| | - Lucie Moitrier
- Centre des Sciences du Goût et de l'Alimentation, AgroSup Dijon, CNRS, INRAE, Université Bourgogne Franche-Comté, Dijon, France
| | - Fabrice Neiers
- Centre des Sciences du Goût et de l'Alimentation, AgroSup Dijon, CNRS, INRAE, Université Bourgogne Franche-Comté, Dijon, France
| | - Loïc Briand
- Centre des Sciences du Goût et de l'Alimentation, AgroSup Dijon, CNRS, INRAE, Université Bourgogne Franche-Comté, Dijon, France.
| |
Collapse
|
2
|
Boldrini-França J, Santos Rodrigues R, Santos-Silva LK, de Souza DLN, Gomes MSR, Cologna CT, de Pauw E, Quinton L, Henrique-Silva F, de Melo Rodrigues V, Arantes EC. Expression of a new serine protease from Crotalus durissus collilineatus venom in Pichia pastoris and functional comparison with the native enzyme. Appl Microbiol Biotechnol 2015; 99:9971-86. [PMID: 26227411 DOI: 10.1007/s00253-015-6836-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 07/07/2015] [Accepted: 07/11/2015] [Indexed: 11/28/2022]
Abstract
Snake venom serine proteases (SVSPs) act primarily on plasma proteins related to blood clotting and are considered promising for the treatment of several hemostatic disorders. We report the heterologous expression of a serine protease from Crotalus durissus collilineatus, named collinein-1, in Pichia pastoris, as well as the enzymatic comparative characterization of the toxin in native and recombinant forms. The complementary DNA (cDNA) encoding collinein-1 was amplified from cDNA library of C. d. collilineatus venom gland and cloned into the pPICZαA vector. The recombinant plasmid was used to transform cells of KM71H P. pastoris. Heterologous expression was induced by methanol and yielded 56 mg of recombinant collinein-1 (rCollinein-1) per liter of culture. The native collinein-1 was purified from C. d. collilineatus venom, and its identity was confirmed by amino acid sequencing. The native and recombinant enzymes showed similar effects upon bovine fibrinogen by releasing preferentially fibrinopeptide A. Although both enzymes have induced plasma coagulation, native Colinein-1 has shown higher coagulant activity. The serine proteases were able to hydrolyze the chromogenic substrates S-2222, S-2238, and S2302. Both enzymes showed high stability on different pH and temperature, and their esterase activities were inhibited in the presence of Zn2+ and Cu2+. The serine proteases showed similar k cat/K m values in enzyme kinetics assays, suggesting no significant differences in efficiency of these proteins to hydrolyze the substrate. These results demonstrated that rCollinein-1 was expressed with functional integrity on the evaluated parameters. The success in producing a functionally active recombinant SVSP may generate perspectives to their future therapeutic applications.
Collapse
Affiliation(s)
- Johara Boldrini-França
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Departamento de Física e Química, Universidade de São Paulo, Av. do Café s/n, Monte Alegre, Ribeirão Preto, SP, 14040-903, Brazil
| | - Renata Santos Rodrigues
- Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Uberlândia, Brazil.,INCT, Instituto Nacional de Ciência e Tecnologia em Nano-Biofarmacêutica, Belo Horizonte, MG, Brazil
| | | | - Dayane Lorena Naves de Souza
- Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Uberlândia, Brazil.,INCT, Instituto Nacional de Ciência e Tecnologia em Nano-Biofarmacêutica, Belo Horizonte, MG, Brazil
| | - Mário Sérgio Rocha Gomes
- Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Uberlândia, Brazil.,INCT, Instituto Nacional de Ciência e Tecnologia em Nano-Biofarmacêutica, Belo Horizonte, MG, Brazil
| | | | - Edwin de Pauw
- Department of Chemistry, University of Liège, Liège, Belgium
| | - Loïc Quinton
- Department of Chemistry, University of Liège, Liège, Belgium
| | - Flávio Henrique-Silva
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, Brazil
| | - Veridiana de Melo Rodrigues
- Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Uberlândia, Brazil.,INCT, Instituto Nacional de Ciência e Tecnologia em Nano-Biofarmacêutica, Belo Horizonte, MG, Brazil
| | - Eliane Candiani Arantes
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Departamento de Física e Química, Universidade de São Paulo, Av. do Café s/n, Monte Alegre, Ribeirão Preto, SP, 14040-903, Brazil.
| |
Collapse
|
3
|
Phenylalanine 35 and tyrosine 82 are involved in the uptake and release of ligand by porcine odorant-binding protein. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2009; 1794:1142-50. [DOI: 10.1016/j.bbapap.2009.04.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2008] [Revised: 04/07/2009] [Accepted: 04/15/2009] [Indexed: 11/21/2022]
|