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Parida PP, Saraswathi D, Mopidevi SM, Raran-Kurussi S. Advancing large-scale production of TEV protease through an innovative NT* tag-based fusion construct. Curr Res Struct Biol 2023; 6:100106. [PMID: 37822550 PMCID: PMC10563009 DOI: 10.1016/j.crstbi.2023.100106] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 09/29/2023] [Accepted: 09/29/2023] [Indexed: 10/13/2023] Open
Abstract
Tobacco etch virus Protease (TEVp), a cysteine protease, is renowned for its remarkable specific proteolysis, making it an invaluable tool for removing fusion tags from recombinant proteins. However, TEV protease's inherent insolubility limits its broad application. Fusion constructs like an N-terminal MBP fusion, known for its improved solubility, have been employed for TEVp production to address this issue. In this study, we fused the TEVp with the N-terminal domain of the spider silk protein, specifically utilizing a charge-reversed mutant (D40K/K65D) of the N-terminal domain of major ampullate spidroin-1 protein from Euprosthenops australis, referred to as NT*. This fusion construct contains a TEVp cleavage site, enabling intracellular self-processing and the release of a His7-tagged protease. The significant increase in soluble protein expression allowed us to purify approximately 90-100 mg of TEVp from a 1-L E. coli culture, surpassing previous findings by a considerable margin. The enzyme remained stable and catalytically active even after several months of storage in a deep freezer (-80 °C).
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Affiliation(s)
- Pragyan P. Parida
- Tata Institute of Fundamental Research Hyderabad, 36/P Gopanpally Village, Ranga Reddy District, Serilingampally, Hyderabad, 500046, Telangana, India
| | - Deepa Saraswathi
- Tata Institute of Fundamental Research Hyderabad, 36/P Gopanpally Village, Ranga Reddy District, Serilingampally, Hyderabad, 500046, Telangana, India
| | - Subbarao M.V. Mopidevi
- Tata Institute of Fundamental Research Hyderabad, 36/P Gopanpally Village, Ranga Reddy District, Serilingampally, Hyderabad, 500046, Telangana, India
| | - Sreejith Raran-Kurussi
- Tata Institute of Fundamental Research Hyderabad, 36/P Gopanpally Village, Ranga Reddy District, Serilingampally, Hyderabad, 500046, Telangana, India
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Mollner TA, Giltrap AM, Zeng Y, Demyanenko Y, Buchanan C, Oehlrich D, Baldwin AJ, Anthony DC, Mohammed S, Davis BG. Reductive site-selective atypical C, Z-type/N2-C2 cleavage allows C-terminal protein amidation. SCIENCE ADVANCES 2022; 8:eabl8675. [PMID: 35394836 PMCID: PMC8993120 DOI: 10.1126/sciadv.abl8675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Biomolecule environments can enhance chemistries with the potential to mediate and modulate self-modification (e.g., self-cleavage). While these enhanced modes are found in certain biomolecules (e.g., RNA ribozymes), it is more rare in proteins. Targeted proteolytic cleavage is vital to physiology, biotechnology, and even emerging therapy. Yet, purely chemically induced methods for the site-selective cleavage of proteins remain scarce. Here, as a proof of principle, we designed and tested a system intended to combine protein-enhanced chemistry with tag modification to enable synthetic reductive protein chemistries promoted by diboron. This reductively driven, single-electron chemistry now enables an operationally simple, site-selective cleavage protocol for proteins directed to readily accessible dehydroalanine (Dha) residues as tags under aqueous conditions and in cell lysates. In this way, a mild, efficient, enzyme-free method now allows not only precise chemical proteolysis but also simultaneous use in the removal of affinity tags and/or protein-terminus editing to create altered N- and C-termini such as protein amidation (─CONH2).
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Affiliation(s)
- Tim A. Mollner
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Oxford, UK
| | | | - Yibo Zeng
- The Rosalind Franklin Institute, Oxfordshire, UK
| | | | - Charles Buchanan
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Oxford, UK
| | - Daniel Oehlrich
- Global Medicinal Chemistry, Janssen Research & Development, Beerse, Belgium
| | - Andrew J. Baldwin
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Oxford, UK
- The Rosalind Franklin Institute, Oxfordshire, UK
| | | | - Shabaz Mohammed
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Oxford, UK
- The Rosalind Franklin Institute, Oxfordshire, UK
- Department of Biochemistry, University of Oxford, Oxford, UK
| | - Benjamin G. Davis
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Oxford, UK
- The Rosalind Franklin Institute, Oxfordshire, UK
- Department of Pharmacology, University of Oxford, Oxford, UK
- Corresponding author.
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Production of the recombinant antimicrobial peptide UBI 18-35 in Escherichia coli. Protein Expr Purif 2018; 143:38-44. [DOI: 10.1016/j.pep.2017.10.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 10/18/2017] [Accepted: 10/18/2017] [Indexed: 11/21/2022]
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Single step purification of recombinant proteins using the metal ion-inducible autocleavage (MIIA) domain as linker for tag removal. J Biotechnol 2015; 208:22-7. [PMID: 26026704 DOI: 10.1016/j.jbiotec.2015.05.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 05/21/2015] [Accepted: 05/24/2015] [Indexed: 11/23/2022]
Abstract
For fast and easy purification, proteins are typically fused with an affinity tag, which often needs to be removed after purification. Here, we present a method for the removal of the affinity tag from the target protein in a single step protocol. The protein VIC_001052 of the coral pathogen Vibrio coralliilyticus ATCC BAA-450 contains a metal ion-inducible autocatalytic cleavage (MIIA) domain. Its coding sequence was inserted into an expression vector for the production of recombinant fusion proteins. Following, the target proteins MalE and mCherry were produced as MIIA-Strep fusion proteins in Escherichia coli. The target proteins could be separated from the MIIA-Strep part simply by the addition of calcium or manganese(II) ions within minutes. The cleavage is not affected in the pH range from 5.0 to 9.0 or at low temperatures (6°C). Autocleavage was also observed with immobilized protein on an affinity column. The protein yield was similar to that achieved with a conventional purification protocol.
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Exosome-mediated delivery of the intrinsic C-terminus domain of PTEN protects it from proteasomal degradation and ablates tumorigenesis. Mol Ther 2014; 23:255-69. [PMID: 25327178 DOI: 10.1038/mt.2014.202] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Accepted: 10/11/2014] [Indexed: 12/21/2022] Open
Abstract
PTEN mutation is a frequent feature across a plethora of human cancers, the hot-spot being its C-terminus (PTEN-CT) regulatory domain resulting in a much diminished protein expression. In this study, the presence of C-terminus mutations was confirmed through sequencing of different human tumor samples. The kinase CKII-mediated phosphorylation of PTEN at these sites makes it a loopy structure competing with the E3 ligases for binding to its lipid anchoring C2 domain. Accordingly, it was found that PTEN-CT expressing stable cell lines could inhibit tumorigenesis in syngenic breast tumor models. Therefore, we designed a novel exosome-mediated delivery of the intrinsic PTEN domain, PTEN-CT into different cancer cells and observed reduced proliferation, migration, and colony forming ability. The delivery of exosome containing PTEN-CT to breast tumor mice model was found to result in significant regression in tumor size with the tumor sections showing increased apoptosis. Here, we also report for the first time an active PTEN when its C2 domain is bound by PTEN-CT, probably rendering its anti-tumorigenic activities through the protein phosphatase activity. Therefore, therapeutic interventions that focus on PTEN E3 ligase inhibition through exosome-mediated PTEN-CT delivery can be a probable route in treating cancers with low PTEN expression.
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Kamat SS, Williams HJ, Raushel FM. Intermediates in the transformation of phosphonates to phosphate by bacteria. Nature 2011; 480:570-3. [PMID: 22089136 PMCID: PMC3245791 DOI: 10.1038/nature10622] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Accepted: 10/10/2011] [Indexed: 11/25/2022]
Affiliation(s)
- Siddhesh S Kamat
- Department of Chemistry, PO Box 30012, Texas A&M University, College Station, Texas 77843, USA
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Douillard FP, O'Connell-Motherway M, Cambillau C, van Sinderen D. Expanding the molecular toolbox for Lactococcus lactis: construction of an inducible thioredoxin gene fusion expression system. Microb Cell Fact 2011; 10:66. [PMID: 21827702 PMCID: PMC3162883 DOI: 10.1186/1475-2859-10-66] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2011] [Accepted: 08/09/2011] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND The development of the Nisin Inducible Controlled Expression (NICE) system in the food-grade bacterium Lactococcus lactis subsp. cremoris represents a cornerstone in the use of Gram-positive bacterial expression systems for biotechnological purposes. However, proteins that are subjected to such over-expression in L. lactis may suffer from improper folding, inclusion body formation and/or protein degradation, thereby significantly reducing the yield of soluble target protein. Although such drawbacks are not specific to L. lactis, no molecular tools have been developed to prevent or circumvent these recurrent problems of protein expression in L. lactis. RESULTS Mimicking thioredoxin gene fusion systems available for E. coli, two nisin-inducible expression vectors were constructed to over-produce various proteins in L. lactis as thioredoxin fusion proteins. In this study, we demonstrate that our novel L. lactis fusion partner expression vectors allow high-level expression of soluble heterologous proteins Tuc2009 ORF40, Bbr_0140 and Tuc2009 BppU/BppL that were previously insoluble or not expressed using existing L. lactis expression vectors. Over-expressed proteins were subsequently purified by Ni-TED affinity chromatography. Intact heterologous proteins were detected by immunoblotting analyses. We also show that the thioredoxin moiety of the purified fusion protein was specifically and efficiently cleaved off by enterokinase treatment. CONCLUSIONS This study is the first description of a thioredoxin gene fusion expression system, purposely developed to circumvent problems associated with protein over-expression in L. lactis. It was shown to prevent protein insolubility and degradation, allowing sufficient production of soluble proteins for further structural and functional characterization.
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Affiliation(s)
- François P Douillard
- Department of Microbiology, University College Cork, Cork, Ireland
- Department of Veterinary Sciences, University of Helsinki, Agnes Sjöbergin katu 2, 00790 Helsinki, Finland
| | - Mary O'Connell-Motherway
- Department of Microbiology, University College Cork, Cork, Ireland
- Alimentary Pharmabiotic Centre, University College Cork, Cork, Ireland
| | - Christian Cambillau
- Architecture et Fonction des Macromolécules Biologiques, UMR 6098 Centre National de la Recherche Scientifique and Universités d'Aix-Marseille I & II, Campus de Luminy, Case 932, 13288 Marseille Cedex 09, France
| | - Douwe van Sinderen
- Department of Microbiology, University College Cork, Cork, Ireland
- Alimentary Pharmabiotic Centre, University College Cork, Cork, Ireland
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Gong M, Xia M, Zhang J, Gu J, Liu X, Cheng J. A novel anti-lymphoma protein RE26 from Rozites emodensis (Berk.) Moser. Appl Microbiol Biotechnol 2011; 93:1097-108. [PMID: 21751009 DOI: 10.1007/s00253-011-3450-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2011] [Revised: 06/14/2011] [Accepted: 06/15/2011] [Indexed: 02/05/2023]
Abstract
A novel antitumor protein, designated RE26, with anti-lymphoma activity was purified from a Tris-HCl buffer extract of Rozites emodensis (Berk.) Moser by three successive steps of ion exchange chromatography. SDS-PAGE and gel filtration chromatography revealed that RE26 is a monomeric protein of 26 kDa, and isoelectrofocusing assay indicated its isoelectric point of 4.3-4.4. RE26 has high stability over a wide pH range (pH 3-11) but is sensitive to temperature and only stable under 40 °C. Partial amino acid sequences of two RE26 peptide fragments were determined by Edman degradation as GLEEEETLLLLFFPP and GTEQE. The half-maximal inhibitory concentration (IC₅₀) of RE26 against tested lymphoma cell lines was around 4 μg/ml. In vitro experiments showed that RE26 could specifically bind to lymphoma cells; activate the caspases, including caspases 3, 8, and 9 in host cells; and induce apoptosis. Experiments in nude mice indicated local RE26 injection adjacent to tumor site could inhibit lymphoma formation.
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Affiliation(s)
- Meng Gong
- Laboratory of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu 610064, China
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Self-cleaving fusion tags for recombinant protein production. Biotechnol Lett 2011; 33:869-81. [PMID: 21267760 DOI: 10.1007/s10529-011-0533-8] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2010] [Accepted: 12/23/2010] [Indexed: 02/04/2023]
Abstract
Fusion expression is a common practice for recombinant protein production. Some fusion tags confer solubility on the target protein whereas others provide affinity handles that facilitate purification. However, the tag usually needs to be removed from the final product, which involves using expensive proteases or hazardous chemicals and requires additional chromatography steps. Self-cleaving tags are a special group of fusion tags that possess inducible proteolytic activity. Combined with appropriate affinity tags, they enable fusion purification, cleavage and target separation to be achieved in a single step, which saves time, labor and cost. This paper reviews currently available self-cleaving fusion tags for recombinant protein production. For each system, an introduction of its key characteristics and a brief discussion of its advantages and disadvantages is given.
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Affiliation(s)
- R C Stevens
- Departments of Molecular Biology and Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, SR101, La Jolla, CA 92037, USA.
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