A lipoamide dehydrogenase from Neisseria meningitidis has a lipoyl domain

Abstract
A protein of molecular weight of 64 kDa (p64k) found in the outer membrane of Neisseria meningitidis shows a high degree of homology with both the lipoyl domain of the acetyltransferase and the entire sequence of the lipoamide dehydrogenase, the E2 and E3 components of the dehydrogenase multienzyme complexes, respectively. The alignment of the p64k with lipoyl domains and lipoamide dehydrogenases from different species is presented. The possible implications of this protein in binding protein-dependent transport are discussed. This is the first lipoamide dehydrogenase reported to have a lipoyl domain.

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