کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1931104 1536786 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Engineered mutated glutaredoxins mimicking peculiar plant class III glutaredoxins bind iron–sulfur centers and possess reductase activity
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
Engineered mutated glutaredoxins mimicking peculiar plant class III glutaredoxins bind iron–sulfur centers and possess reductase activity
چکیده انگلیسی

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 III glutaredoxin, allowed purifying some holoproteins. These properties are discussed considering the documented function of class III glutaredoxins in development.

Research highlights
► The hydrophobic C-terminal end of class III glutaredoxins prevents their expression in Escherichia coli.
► Engineered class I glutaredoxins with a CCxC/S active site motif can bind iron–sulfur clusters and possess reductase activity.
► A genuine class III glutaredoxin devoid of the hydrophobic C-terminal end can also bind an iron–sulfur cluster.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 403, Issues 3–4, 17 December 2010, Pages 435–441
نویسندگان
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