期刊
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
卷 403, 期 3-4, 页码 435-441出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bbrc.2010.11.050
关键词
Active site; Glutaredoxin; Iron-sulfur cluster; Plant
资金
- Agence Nationale de la Recherche [JC07_204825]
In order to gather biochemical information about class III glutaredoxins (CCxC/S active sites), the active sites of two poplar class I glutaredoxins, GrxC1 and C4, CGYC and CPYC, respectively, were transformed into CCMC or CCMS. All the recombinant mutated proteins bind [2Fe-2S] centers into holodimers, whereas monomeric apoforms possess glutathione-dependent reductase activity. The functionally important, hydrophobic GALWL C-terminal end, found in most class III glutaredoxins, prevents expression in Escherichia coli. Changing the C-terminal end of GrxS7.2, a genuine class Ill glutaredoxin, allowed purifying some holoproteins. These properties are discussed considering the documented function of class III glutaredoxins in development. (C) 2010 Elsevier Inc. All rights reserved.
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