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[Expression, purification and identification of recombinant SARS coronavirus membrane protein].

Identifieur interne : 005C58 ( Main/Exploration ); précédent : 005C57; suivant : 005C59

[Expression, purification and identification of recombinant SARS coronavirus membrane protein].

Auteurs : Xiao-Li Zhang [République populaire de Chine] ; Jing-Ru Wang ; Yan Zhang ; Mao-Lin Chen ; Wei Zhang ; Sheng Yang ; Wei-Hong Jiang

Source :

RBID : pubmed:14673508

Descripteurs français

English descriptors

Abstract

A novel coronavirus (SARS-coronavirus, SARS-CoV) was discovered as the pathogen of the severe acute respiratory syndrome (SARS). According to studies with other coronaviruses, the membrane protein (M protein) is the main structural protein and the recombinant M protein may be useful as an antigen for detecting antibodies against coronavirus and for preparing vaccine. In this work, the M protein of SARS-CoV was expressed in E. coli as fusion protein with maltose binding protein at N-terminus and MxeGyrA intein CBD at C-terminus. The recombinant protein was identified by Western blot and mass spectrometry. The soluble parts of the cell crude extract were then partially purified by MBP affinity chromatography. The purified protein will be used for the studies on M protein's structure and the development of diagnostic method of SARS.

PubMed: 14673508


Affiliations:


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Le document en format XML

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<term>Carrier Proteins (isolation & purification)</term>
<term>Carrier Proteins (metabolism)</term>
<term>Gene Expression Regulation, Viral</term>
<term>Maltose-Binding Proteins</term>
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<term>Recombinant Fusion Proteins (metabolism)</term>
<term>Recombinant Proteins (isolation & purification)</term>
<term>Recombinant Proteins (metabolism)</term>
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<term>Protéines de liaison au maltose</term>
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<term>Protéines recombinantes (métabolisme)</term>
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<term>Séquence d'acides aminés</term>
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<div type="abstract" xml:lang="en">A novel coronavirus (SARS-coronavirus, SARS-CoV) was discovered as the pathogen of the severe acute respiratory syndrome (SARS). According to studies with other coronaviruses, the membrane protein (M protein) is the main structural protein and the recombinant M protein may be useful as an antigen for detecting antibodies against coronavirus and for preparing vaccine. In this work, the M protein of SARS-CoV was expressed in E. coli as fusion protein with maltose binding protein at N-terminus and MxeGyrA intein CBD at C-terminus. The recombinant protein was identified by Western blot and mass spectrometry. The soluble parts of the cell crude extract were then partially purified by MBP affinity chromatography. The purified protein will be used for the studies on M protein's structure and the development of diagnostic method of SARS.</div>
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