v5.1.0.3
Glycine data from LIS
Type | Domain |
Description | Phytochrome belongs to a family of plant photoreceptors that mediate physiological and developmental responses to changes in red and far-red light conditions []. Besides plants, they are widely represented in both photosynthetic and non-photosynthetic bacteria and are known in a variety of fungi.The protein undergoes reversible photochemical conversion between a biologically-inactive red light-absorbing form and the active far-red light-absorbing form. Phytochrome is a dimer of identical 124kDa subunits, each of which contains a linear tetrapyrrole chromophore, covalently-attached via a Cys residue.This domain is found in the central region of phytochrome proteins. It is structurally related to the GAF domain , which is generally located immediately N-terminal to this domain, but it carries an additional tongue-like hairpin loop between the fifth β-sheet and the sixth α-helix which functions to seal the chromophore pocket and stabilise the photoactivated far-red-absorbing state (Pfr) [ , ]. |
Short Name | Phytochrome_cen-reg |