UniProt functional annotation for Q9RZA4



	UniProt functional annotation for Q9RZA4

UniProt code: Q9RZA4.

Organism: Deinococcus radiodurans (strain ATCC 13939 / DSM 20539 / JCM 16871 / LMG 4051 / NBRC 15346 / NCIMB 9279 / R1 / VKM B-1422).

Taxonomy: Bacteria; Deinococcus-Thermus; Deinococci; Deinococcales; Deinococcaceae; Deinococcus.

Function: Photoreceptor which exists in two forms that are reversibly interconvertible by light: the R form that absorbs maximally in the red region of the spectrum and the FR form that absorbs maximally in the far-red region. Has also a slight blue shift for the far-red maximum. Could also absorb green light. May participate in regulating pigment synthesis like the carotenoid deinoxanthin which could protect the bacterium from intense visible light.

Catalytic activity: Reaction=ATP + protein L-histidine = ADP + protein N-phospho-L- histidine.; EC=2.7.13.3;

Ptm: Contains one covalently linked tetrapyrrole chromophore. Lacks the cysteine conserved in plant phytochromes (at the position of Met-259) that binds chromophore. An engineered sequence used for X-ray crystallography forms a thioether link to biliverdin through Cys-24. The natural sequence can bind phycocyanobilin and phytochromobilin in vitro, but the identity of the natural chromophore is unknown.

Similarity: In the N-terminal section; belongs to the phytochrome family. {ECO:0000305}.

Annotations taken from UniProtKB at the EBI.


Organism:		Deinococcus radiodurans (strain ATCC 13939 / DSM 20539 / JCM 16871 / LMG 4051 / NBRC 15346 / NCIMB 9279 / R1 / VKM B-1422).
Taxonomy:		Bacteria; Deinococcus-Thermus; Deinococci; Deinococcales; Deinococcaceae; Deinococcus.



Function:		Photoreceptor which exists in two forms that are reversibly interconvertible by light: the R form that absorbs maximally in the red region of the spectrum and the FR form that absorbs maximally in the far-red region. Has also a slight blue shift for the far-red maximum. Could also absorb green light. May participate in regulating pigment synthesis like the carotenoid deinoxanthin which could protect the bacterium from intense visible light.


Catalytic activity:		Reaction=ATP + protein L-histidine = ADP + protein N-phospho-L- histidine.; EC=2.7.13.3;
Ptm:		Contains one covalently linked tetrapyrrole chromophore. Lacks the cysteine conserved in plant phytochromes (at the position of Met-259) that binds chromophore. An engineered sequence used for X-ray crystallography forms a thioether link to biliverdin through Cys-24. The natural sequence can bind phycocyanobilin and phytochromobilin in vitro, but the identity of the natural chromophore is unknown.
Similarity:		In the N-terminal section; belongs to the phytochrome family. {ECO:0000305}.