Comprehensive analysis of the green-to-blue photoconversion of full-length Cyanobacteriochrome Tlr0924.

ABSTRACT: Cyanobacteriochromes are members of the phytochrome superfamily of photoreceptors and are of central importance in biological light-activated signaling mechanisms. These photoreceptors are known to reversibly convert between two states in a photoinitiated process that involves a basic E/Z isomerization of the bilin chromophore and, in certain cases, the breakage of a thioether linkage to a conserved cysteine residue in the bulk protein structure. The exact details and timescales of the reactions involved in these photoconversions have not been conclusively shown. The cyanobacteriochrome Tlr0924 contains phycocyanobilin and phycoviolobilin chromophores, both of which photoconvert between two species: blue-absorbing and green-absorbing, and blue-absorbing and red-absorbing, respectively. Her

SUBMITTER: Hardman SJ 

PROVIDER: S-EPMC4223177 | biostudies-literature | 2014 Nov

REPOSITORIES: biostudies-literature