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Putative signal peptide on the small subunit of the periplasmic hydrogenase from Desulfovibrio vulgaris.

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Abstract

We sequenced the NH2 terminus of the large and small subunits of the periplasmic hydrogenase from the sulfate-reducing bacterium Desulfovibrio vulgaris (Hildenborough) and found that the small subunit lacks a region of 34 NH4-terminal amino acids coded by the gene for the small subunit (G. Voordouw and S. Brenner, Eur. J. Biochem. 148:515-520, 1985). We suggest that this region constitutes a signal peptide based on comparison with known procaryotic signal peptides.

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