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Article

Indispensable glutamic acid residue-139 of NtpK proteolipid in the reaction of vacuolar Na(+)-translocating ATPase in Enterococcus hirae.

Bioscience, biotechnology, and biochemistry - 1 Jun 1999

Takase K, Yamato I, Igarashi K, Kakinuma Y

Abstract excerpt

Enterococcus hirae vacuolar ATPase catalyzes translocation of Na+ or Li+ coupled with ATP hydrolysis. It is suggested that the glutamic acid residue (Glu139) of NtpK proteolipid subunit of this multisubunit enzyme is the binding site of these ions for translocation. Here we established a complementation system for the ntpK gene with its deletion mutant, and found that the ATPase activity disappeared upon...

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Identifiers

PMID: 10427702
DOI: 10.1271/bbb.63.1125

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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