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Article

Structural basis for unique color tuning mechanism in heliorhodopsin.

Biochemical and biophysical research communications - 10 Dec 2020

Tanaka Tatsuki, Singh Manish, Shihoya Wataru, Yamashita Keitaro, Kandori Hideki, Nureki Osamu

Abstract excerpt

Microbial rhodopsins comprise an opsin protein with seven transmembrane helices and a retinal as the chromophore. An all-trans retinal is covalently bonded to a lysine residue through the retinal Schiff base (RSB) and stabilized by a negatively charged counterion. The distance between the RSB and counterion is closely related to the light energy absorption. However, in heliorhodopsin-48C12 (HeR-48C12), while E107...

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Identifiers

PMID: 32951839
DOI: 10.1016/j.bbrc.2020.06.124

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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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