نتایج جستجو برای: flavodoxin
تعداد نتایج: 424 فیلتر نتایج به سال:
The flavoprotein from Azotobacter, first isolated by SHETHNA et al. 1, is chemically well characterized, but its enzymatic function is still obscure. ARNON and coworkers 2 found this flavoprotein to be active in substituting for ferredoxin in the reduction of acetylene by a cell-free nitrogenase preparation from Azotobacter. We have recently confirmed their observation3. In addition, we could d...
Earlier in vivo studies have shown that the sequential action of the IspG and IspH proteins is essential for the reductive transformation of 2C-methyl-d-erythritol 2,4-cyclodiphosphate into dimethylallyl diphosphate and isopentenyl diphosphate via 1-hydroxy-2-methyl-2-(E)-butenyl 4-diphosphate. A recombinant fusion protein comprising maltose binding protein and IspG protein domains was purified...
The ChrT gene encodes a chromate reductase enzyme which catalyzes the reduction of Cr(VI). The chromate reductase is also known as flavin mononucleotide (FMN) reductase (FMN_red). The aim of the present study was to clone the full-length ChrT DNA from Serratia sp. CQMUS2 and analyze the deduced amino acid sequence and three-dimensional structure. The putative ChrT gene fragment of Serratia sp. ...
I. Stable apoproteins have been prepared from Peptostreptococcus elsdenii, C. pasteurianum and Clostridium MP flavodoxins by dialysis of the native proteins against 2 M KBr at pH 3.9 and 3" lO-4 M EDTA. The apoproteins each bind I molecule of FMN to give complexes identical with the native flavodoxins. 2. Binding causes almost complete quenching of both protein and FMN fluorescence. This proper...
In addition to the 5'-phosphate ester on its flavin mononucleotide (FMN) moiety, flavodoxin from Azotobacter vinelandii contains 2 moles of tightly bound phosphate. One non-coenzyme phosphate group is covalently bound to the protein, as it remains with the protein on acid precipitation, whereas the other phosphate is released. The invariance of the (31)P nuclear magnetic resonance chemical shif...
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