Production and Purification of a Recombinant Elastomeric Polypeptide, G-(VPGVG)19-VPGV, from Escherichia coli

An elastomeric polypeptide was produced, with the sequence G‐(VPGVG)19‐VPGV, as a fusion to glutathione S‐transferase using the vector pGEX‐3X. The fusion protein was expressed to high levels in Escherichia coli as indicated by SDS‐PAGE analysis of induced cells. The fusion protein was affinity puri...

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Veröffentlicht in:Biotechnology progress 1992-07, Vol.8 (4), p.347-352
Hauptverfasser: Mcpherson, David T., Morrow, Casey, Minehan, Daniel S., Wu, Jianguo, Hunter, Eric, Urry, Dan W.
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container_end_page 352
container_issue 4
container_start_page 347
container_title Biotechnology progress
container_volume 8
creator Mcpherson, David T.
Morrow, Casey
Minehan, Daniel S.
Wu, Jianguo
Hunter, Eric
Urry, Dan W.
description An elastomeric polypeptide was produced, with the sequence G‐(VPGVG)19‐VPGV, as a fusion to glutathione S‐transferase using the vector pGEX‐3X. The fusion protein was expressed to high levels in Escherichia coli as indicated by SDS‐PAGE analysis of induced cells. The fusion protein was affinity purified and cleaved with protease factor Xa, and the elastomeric polypeptide was recovered to a high degree of purity as indicated by SDS—PAGE followed by staining with CuCl2. The physical characterizations of carbon‐13 and proton nuclear magnetic resonance and of the temperature profile for turbidity formation for the inverse temperature transition of hydrophobic folding and assembly attest to the successful microbial synthesis of the polypentapeptide of elastin. The results of these studies provide the initial progress toward achieving a more economical and practical means of producing material for elastic protein‐based polymer research and applications.
doi_str_mv 10.1021/bp00016a012
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source MEDLINE; ACS Publications
subjects Amino Acid Sequence
Base Sequence
Biological and medical sciences
Biotechnology
Cloning, Molecular
DNA, Bacterial
Electrophoresis, Polyacrylamide Gel
Escherichia coli - metabolism
Fundamental and applied biological sciences. Psychology
Genes, Synthetic
Genetic engineering
Genetic technics
Magnetic Resonance Spectroscopy
Methods. Procedures. Technologies
Modification of gene expression level
Molecular Sequence Data
Peptide Biosynthesis
Peptides - isolation & purification
Polymerase Chain Reaction
Recombinant Fusion Proteins - biosynthesis
Recombinant Fusion Proteins - isolation & purification
title Production and Purification of a Recombinant Elastomeric Polypeptide, G-(VPGVG)19-VPGV, from Escherichia coli
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