UniProt functional annotation for P22666



	UniProt functional annotation for P22666

UniProt code: P22666.

Organism: Chlamydomonas reinhardtii (Chlamydomonas smithii).

Taxonomy: Eukaryota; Viridiplantae; Chlorophyta; core chlorophytes; Chlorophyceae; CS clade; Chlamydomonadales; Chlamydomonadaceae; Chlamydomonas.

Function: One of the components of the core complex of photosystem II (PSII), required for its stability and/or assembly, possibly playing a role in dimerization (PubMed:9112780, PubMed:9554956). PSII is a light- driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation. {ECO:0000255|HAMAP-Rule:MF_00752, ECO:0000269|PubMed:9112780, ECO:0000269|PubMed:9554956}.

Subunit: PSII is composed of 1 copy each of membrane proteins PsbA, PsbB, PsbC, PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK, PsbL, PsbM, PsbT, PsbW, PsbX, PsbY, PsbZ, Ycf12, at least 3 peripheral proteins of the oxygen-evolving complex and a large number of cofactors. It forms dimeric complexes. {ECO:0000269|PubMed:1885590, ECO:0000269|PubMed:9112780}.

Subcellular location: Plastid, chloroplast thylakoid membrane {ECO:0000255|HAMAP-Rule:MF_00752, ECO:0000269|PubMed:1885590, ECO:0000269|PubMed:9112780, ECO:0000269|Ref.4}; Single-pass membrane protein {ECO:0000255|HAMAP-Rule:MF_00752, ECO:0000305|PubMed:9112780}.

Induction: A monocistronic transcript that is strongly expressed. {ECO:0000269|PubMed:9112780}.

Ptm: Phosphorylation is a light-dependent reaction catalyzed by a membrane-bound kinase (Ref.4). In vitro phosphorylation is incomplete (PubMed:1885590). {ECO:0000269|PubMed:1885590, ECO:0000269|Ref.4}.

Disruption phenotype: Loss of photosynthetic growth, cells grow normally on a reduced carbon source. While all other PSII subunits are synthesized and are inserted into thylakoids, they do not accumulate. {ECO:0000269|PubMed:9112780, ECO:0000269|PubMed:9554956}.

Similarity: Belongs to the PsbH family. {ECO:0000255|HAMAP- Rule:MF_00752}.

Annotations taken from UniProtKB at the EBI.


Organism:		Chlamydomonas reinhardtii (Chlamydomonas smithii).
Taxonomy:		Eukaryota; Viridiplantae; Chlorophyta; core chlorophytes; Chlorophyceae; CS clade; Chlamydomonadales; Chlamydomonadaceae; Chlamydomonas.



Function:		One of the components of the core complex of photosystem II (PSII), required for its stability and/or assembly, possibly playing a role in dimerization (PubMed:9112780, PubMed:9554956). PSII is a light- driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation. {ECO:0000255\|HAMAP-Rule:MF_00752, ECO:0000269\|PubMed:9112780, ECO:0000269\|PubMed:9554956}.


Subunit:		PSII is composed of 1 copy each of membrane proteins PsbA, PsbB, PsbC, PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK, PsbL, PsbM, PsbT, PsbW, PsbX, PsbY, PsbZ, Ycf12, at least 3 peripheral proteins of the oxygen-evolving complex and a large number of cofactors. It forms dimeric complexes. {ECO:0000269\|PubMed:1885590, ECO:0000269\|PubMed:9112780}.
Subcellular location:		Plastid, chloroplast thylakoid membrane {ECO:0000255\|HAMAP-Rule:MF_00752, ECO:0000269\|PubMed:1885590, ECO:0000269\|PubMed:9112780, ECO:0000269\|Ref.4}; Single-pass membrane protein {ECO:0000255\|HAMAP-Rule:MF_00752, ECO:0000305\|PubMed:9112780}.
Induction:		A monocistronic transcript that is strongly expressed. {ECO:0000269\|PubMed:9112780}.
Ptm:		Phosphorylation is a light-dependent reaction catalyzed by a membrane-bound kinase (Ref.4). In vitro phosphorylation is incomplete (PubMed:1885590). {ECO:0000269\|PubMed:1885590, ECO:0000269\|Ref.4}.
Disruption phenotype:		Loss of photosynthetic growth, cells grow normally on a reduced carbon source. While all other PSII subunits are synthesized and are inserted into thylakoids, they do not accumulate. {ECO:0000269\|PubMed:9112780, ECO:0000269\|PubMed:9554956}.
Similarity:		Belongs to the PsbH family. {ECO:0000255\|HAMAP- Rule:MF_00752}.