OXIDATION OF MOLECULAR-HYDROGEN IN CELL-EXTRACTS OF DESULFOVIBRIO-DESULFURICANS-2198

Authors
KIYASHKO SV MUKHITOVA FK RYABTSEVA OA
Citation
Sv. Kiyashko et al., OXIDATION OF MOLECULAR-HYDROGEN IN CELL-EXTRACTS OF DESULFOVIBRIO-DESULFURICANS-2198, Biochemistry, 59(2), 1994, pp. 155-158
Citations number
9
Categorie Soggetti
Biology
Journal title
Biochemistry → ACNP
ISSN journal
00062979
Volume
59
Issue
2
Year of publication
1994
Pages
155 - 158
Database
ISI
SICI code
0006-2979(1994)59:2<155:OOMICO>2.0.ZU;2-K
Abstract
Oxidation of hydrogen in cell extract of Desulfovibrio desulfuricans s train 2198 in the presence of benzyl viologen was studied. At least tw o enzymes catalyzing hydrogen oxidation with different substrate affin ities are found in the extract. Increasing the substrate concentration above a threshold value inhibits both enzymes. The influence of some physicochemical factors on the rate of hydrogen oxidation was studied. Some suggestions about the composition of the catalytic sites are mad e, and a reaction scheme is proposed.