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Vanadate Reduction by Molybdenum‐Free Dissimilatory Nitrate Reductases from Vanadate‐Reducing Bacteria
Author(s) -
Antipov A. N.,
Lyalikova N. N.,
Khijniak T. V.,
L'vov N. P.
Publication year - 2000
Publication title -
iubmb life
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.132
H-Index - 113
eISSN - 1521-6551
pISSN - 1521-6543
DOI - 10.1080/15216540050176575
Subject(s) - vanadate , nitrate , molybdenum , nitrate reductase , chemistry , bacteria , inorganic chemistry , cofactor , biochemistry , enzyme , biology , organic chemistry , genetics
Molybdenum‐ and molybdenum cofactor‐free nitrate reductases recently isolated by us from vanadate‐reducing bacteria Pseudomonas isachenkovii are likely to mediate vanadate reduction. During anaerobic growth of P. isachenkovii on medium supplemented with nitrate and vanadate, vanadate dissimilation was followed by nitrate consumption, and this process was associated with some structural reorganizations of nitrate reductases. The homogeneous membrane‐bound nitrate reductase of P. isachenkovii reduced vanadate with NADH as an electron donor.