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FEBS Lett. 1994 Dec 19;356(2-3):333-8.

Cloning and sequencing of four structural genes for the Na(+)-translocating NADH-ubiquinone oxidoreductase of Vibrio alginolyticus.

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1
Institute for Cell and Molecular Biology, Edinburgh University, UK.

Abstract

Oligonucleotide probes based on the N-terminal amino acid sequences of the NqrA and NqrC subunits were used to clone genes for the Na(+)-dependent NADH-ubiquinone oxidoreductase complex from Vibrio alginolyticus. Four consecutive ORFs were identified encoding subunit proteins of 48.6, 46.8, 27.7 and 22.6 kDa, respectively (NqrA-D). A further ORF, showing 71% homology to the BolA protein of Escherichia coli, was located upstream. From sequence comparisons, we conclude that the Na(+)-dependent NADH-ubiquinone oxidoreductase complex of V. alginolyticus is clearly distinct from the corresponding H(+)-dependent enzymes of both prokaryotes and eukaryotes.

PMID:
7805867
DOI:
10.1016/0014-5793(94)01275-x
[Indexed for MEDLINE]
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