Isolation, amino acid analysis and N-terminal sequence determination of the two subunits of the nickel-containing hydrogenase of Desulfovibrio gigas. 1988

V Nivière, and N Forget, and G Bovier-Lapierre, and J Bonicel, and C Hatchikian
Laboratoire de Chimie Bactérienne (LCB), CNRS, BP 71, Marseille, France.

The two subunits of the nickel-iron hydrogenase from Desulfovibrio gigas have been purified by preparative sodium dodecyl sulfate polyacrylamide gel electrophoresis and their amino acid compositions have been determined. The N-terminal sequences for 15 residues of the large subunit (Mr 62,000) and 25 residues of the small subunit (Mr 26,000), respectively, were established. The occurrence of several cysteine residues in the small subunit is discussed in relation with their possible role in the binding of the redox centers of the enzyme.

UI MeSH Term Description Entries
D003901 Desulfovibrio A genus of gram-negative, anaerobic, rod-shaped bacteria capable of reducing sulfur compounds to hydrogen sulfide. Organisms are isolated from anaerobic mud of fresh and salt water, animal intestines, manure, and feces.
D006864 Hydrogenase An enzyme found in bacteria. It catalyzes the reduction of FERREDOXIN and other substances in the presence of molecular hydrogen and is involved in the electron transport of bacterial photosynthesis. Ferredoxin Hydrogenase,H2-Oxidizing Hydrogenase,Hydrogenlyase,H2 Oxidizing Hydrogenase,Hydrogenase, Ferredoxin,Hydrogenase, H2-Oxidizing
D000595 Amino Acid Sequence The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION. Protein Structure, Primary,Amino Acid Sequences,Sequence, Amino Acid,Sequences, Amino Acid,Primary Protein Structure,Primary Protein Structures,Protein Structures, Primary,Structure, Primary Protein,Structures, Primary Protein
D000596 Amino Acids Organic compounds that generally contain an amino (-NH2) and a carboxyl (-COOH) group. Twenty alpha-amino acids are the subunits which are polymerized to form proteins. Amino Acid,Acid, Amino,Acids, Amino

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