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Article

A light-driven sodium ion pump in marine bacteria.

Nature communications - 1 Jan 2013

Inoue Keiichi, Ono Hikaru, Abe-Yoshizumi Rei, Yoshizawa Susumu, Ito Hiroyasu, Kogure Kazuhiro, Kandori Hideki

Abstract excerpt

Light-driven proton-pumping rhodopsins are widely distributed in many microorganisms. They convert sunlight energy into proton gradients that serve as energy source of the cell. Here we report a new functional class of a microbial rhodopsin, a light-driven sodium ion pump. We discover that the marine flavobacterium Krokinobacter eikastus possesses two rhodopsins, the first, KR1, being a prototypical proton pump,...

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PMID: 23575682
DOI: 10.1038/ncomms2689

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