Respiration-Drive Na+ Pump of the Marine Vibrio Is Encoded by Chromosomal DNA

Tatsunosuke NAKAMURA; Shinsuke HAYASHI; Rie YAMANAKA; Hajime HAMASHIMA; Taketoshi ARAI; Tsutomu UNEMOTO

doi:10.1248/bpb.16.751

Respiration-Drive Na⁺ Pump of the Marine Vibrio Is Encoded by Chromosomal DNA

Tatsunosuke NAKAMURA, Shinsuke HAYASHI, Rie YAMANAKA, Hajime HAMASHIMA, Taketoshi ARAI, Tsutomu UNEMOTO

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Keywords: respiration-driven Na⁺ pump, NADH-quinone reductase, plasmid, Na⁺ pump, marine bacterium, marine Vibrio

JOURNAL FREE ACCESS

1993 Volume 16 Issue 8 Pages 751-753

DOI https://doi.org/10.1248/bpb.16.751

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Abstract

A plasmid-cured strain of the marine Vibrio alginolyticus 138-2 retains a respiration-drive Na⁺ pump. Examinations of several strains of V. alginolyticus and V. parahaemolyticus revealed that these marine Vibrio always possessed the respiration-driven Na⁺ pump irrespective of the presence or absence of plasmids. These results strongly suggested that the genes for the Na⁺ pump were encoded by chromosomal DNA.

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