Assembly and crystallization of the complex between the human T cell coreceptor CD8alpha homodimer and HLA-A2.

A strategy for overexpression in Escherichia coli of the extracellular immunoglobulin domain of human CD8alpha was devised using codon usage alterations in the 5' region of the gene, designed so as to prevent the formation of secondary structures in the mRNA. A fragment of CD8alpha, comprising...

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Main Authors: Gao, G, Gerth, U, Wyer, JR, Willcox, B, O'Callaghan, C, Zhang, Z, Jones, E, Bell, J, Jakobsen, B
Format: Journal article
Language:English
Published: 1998
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author Gao, G
Gerth, U
Wyer, JR
Willcox, B
O'Callaghan, C
Zhang, Z
Jones, E
Bell, J
Jakobsen, B
author_facet Gao, G
Gerth, U
Wyer, JR
Willcox, B
O'Callaghan, C
Zhang, Z
Jones, E
Bell, J
Jakobsen, B
author_sort Gao, G
collection OXFORD
description A strategy for overexpression in Escherichia coli of the extracellular immunoglobulin domain of human CD8alpha was devised using codon usage alterations in the 5' region of the gene, designed so as to prevent the formation of secondary structures in the mRNA. A fragment of CD8alpha, comprising residues 1-120 of the mature protein, excluding the signal peptide and the membrane-proximal stalk region, was recovered from bacterial inclusion bodies and refolded to produce a single species of homodimeric, soluble receptor. HLA-A2 heavy chain, beta2-microglobulin and a synthetic peptide antigen corresponding to the pol epitope from HIV-1 were also expressed in E. coli, refolded and purified. CD8alpha/HLA-A2 complexes were formed in solution and by co-crystallization with a stoichiometry of one CD8alpha alpha dimer to one HLA-A2-peptide unit.
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spelling oxford-uuid:9bec19ce-a823-4ebc-a097-0b2d5a03b6cf2022-03-27T00:32:24ZAssembly and crystallization of the complex between the human T cell coreceptor CD8alpha homodimer and HLA-A2.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:9bec19ce-a823-4ebc-a097-0b2d5a03b6cfEnglishSymplectic Elements at Oxford1998Gao, GGerth, UWyer, JRWillcox, BO'Callaghan, CZhang, ZJones, EBell, JJakobsen, BA strategy for overexpression in Escherichia coli of the extracellular immunoglobulin domain of human CD8alpha was devised using codon usage alterations in the 5' region of the gene, designed so as to prevent the formation of secondary structures in the mRNA. A fragment of CD8alpha, comprising residues 1-120 of the mature protein, excluding the signal peptide and the membrane-proximal stalk region, was recovered from bacterial inclusion bodies and refolded to produce a single species of homodimeric, soluble receptor. HLA-A2 heavy chain, beta2-microglobulin and a synthetic peptide antigen corresponding to the pol epitope from HIV-1 were also expressed in E. coli, refolded and purified. CD8alpha/HLA-A2 complexes were formed in solution and by co-crystallization with a stoichiometry of one CD8alpha alpha dimer to one HLA-A2-peptide unit.
spellingShingle Gao, G
Gerth, U
Wyer, JR
Willcox, B
O'Callaghan, C
Zhang, Z
Jones, E
Bell, J
Jakobsen, B
Assembly and crystallization of the complex between the human T cell coreceptor CD8alpha homodimer and HLA-A2.
title Assembly and crystallization of the complex between the human T cell coreceptor CD8alpha homodimer and HLA-A2.
title_full Assembly and crystallization of the complex between the human T cell coreceptor CD8alpha homodimer and HLA-A2.
title_fullStr Assembly and crystallization of the complex between the human T cell coreceptor CD8alpha homodimer and HLA-A2.
title_full_unstemmed Assembly and crystallization of the complex between the human T cell coreceptor CD8alpha homodimer and HLA-A2.
title_short Assembly and crystallization of the complex between the human T cell coreceptor CD8alpha homodimer and HLA-A2.
title_sort assembly and crystallization of the complex between the human t cell coreceptor cd8alpha homodimer and hla a2
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