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Article

Voltage- and pH-dependent changes in vectoriality of photocurrents mediated by wild-type and mutant proteorhodopsins upon expression in Xenopus oocytes.

Journal of molecular biology - 23 Oct 2009

Lörinczi Eva, Verhoefen Mirka-Kristin, Wachtveitl Josef, Woerner Andreas C, Glaubitz Clemens, Engelhard Martin, Bamberg Ernst, Friedrich Thomas

Abstract excerpt

Proteorhodopsin (PR), a light-driven proton pump from marine proteobacteria, exhibits photocycle characteristics similar to bacteriorhodopsin (BR) at neutral pH, including an M-like photointermediate. However, at acidic pH, spectroscopic evidence for an M-like species was absent, and the vectoriality of proton pumping was inverted. To gain further insight into this unusual property, we examined the voltage...

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PMID: 19631661
DOI: 10.1016/j.jmb.2009.07.055

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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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