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Article

Role of Asn112 in a Light-Driven Sodium Ion-Pumping Rhodopsin.

Biochemistry - 18 Oct 2016

Abe-Yoshizumi Rei, Inoue Keiichi, Kato Hideaki E, Nureki Osamu, Kandori Hideki

Abstract excerpt

Light-driven outward sodium-pumping rhodopsin (NaR) was recently found in marine bacteria. Krokinobacter eikastus rhodopsin 2 (KR2) actively transports sodium and lithium ions in NaCl and LiCl, respectively, while it pumps protons in KCl. NaR has a conserved NDQ (N112, D116, and Q123 in KR2) motif, and previous studies suggested an important role for N112 in the function of KR2. Here we replaced N112 with 19...

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PMID: 27673340
DOI: 10.1021/acs.biochem.6b00741

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