Calcium is required for the reduction of sulfite from hydrogen in a reconstituted electron transfer chain from the sulfate reducing bacterium, Desulfovibrio gigas |
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| Authors: | L Chen M Y Liu J Le Gall |
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| Affiliation: | Department of Biochemistry, University of Georgia, Athens 30602. |
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| Abstract: | Calcium is found a strong stimulator of sulfite reduction from hydrogen. A coupling protein of molecular weight 65,000 can be isolated from Desulfovibrio gigas. It functions in a reconstituted electron transfer chain between hydrogenase and sulfite reductase. Its N-terminal sequence shows high homologies with calcium or magnesium binding sites from other calcium-binding proteins. |
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