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J Bacteriol. 1977 October; 132(1): 139-143

Bisulfite reductase of Desulfovibrio vulgaris: explanation for product formation.

H L Drake and J M Akagi

ABSTRACT

Bisulfite reductase, purified from Desulfovibrio vulgaris, was coupled with the pyruvate phosphoroclastic reaction. Moderate to low reducing conditions resulted in the formation of trithionate; however, when the concentration of reductant was high, a mixture of trithionate and thiosulfate was formed. Sulfide was also a detectable product, but only when the concentration of bisulfite was low. Flavodoxin mediated native coupling between bisulfite reductase and the phosphoroclastic reaction. A model for bisulfite reductase activity is proposed.

J Bacteriol. 1977 October; 132(1): 139-143






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