Article
Photocycle of Exiguobacterium sibiricum rhodopsin characterized by low-temperature trapping in the IR and time-resolved studies in the visible.
The journal of physical chemistry. B - 20 Jun 2013
Dioumaev Andrei K, Petrovskaya Lada E, Wang Jennifer M, Balashov Sergei P, Dolgikh Dmitriy A, Kirpichnikov Mikhail P, Lanyi Janos K
Abstract excerpt
The photocycle of the retinal protein from Exiguobacterium sibiricum, which differs from bacteriorhodopsin in both its primary donor and acceptor, is characterized by visible and infrared spectroscopy. At pH above pKa ~6.5, we find a bacteriorhodopsin-like photocycle, which originates from excitation of the all-trans retinal chromophore with K-, L-, M-, and N-like intermediates. At pH below pKa ~6.5, the M state,...
Read the complete abstract on PubMedTopics
Share this publication in a Topic to start or enrich a Post.