UniProt functional annotation for Q8DIN8



	UniProt functional annotation for Q8DIN8

UniProt code: Q8DIN8.

Organism: Thermosynechococcus elongatus (strain BP-1).

Taxonomy: Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Thermosynechococcus.

Function: One of the components of the core complex of photosystem II (PSII). 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. This subunit is found at the monomer-monomer interface and is required for correct PSII assembly and/or dimerization. This subunit may make specific contacts with lipid(s) (PubMed:16355230). {ECO:0000255|HAMAP- Rule:MF_01317, ECO:0000269|PubMed:20558739, ECO:0000269|PubMed:21367867, ECO:0000269|PubMed:25006873}.

Cofactor: Note=PSII binds multiple chlorophylls, carotenoids and specific lipids. {ECO:0000269|PubMed:14764885, ECO:0000269|PubMed:16355230, ECO:0000269|PubMed:17935689, ECO:0000269|PubMed:17967798, ECO:0000269|PubMed:19219048, ECO:0000269|PubMed:20558739, ECO:0000269|PubMed:21367867, ECO:0000269|PubMed:22665786, ECO:0000269|PubMed:23413188, ECO:0000269|PubMed:25006873, ECO:0000269|PubMed:25043005};

Subunit: Cyanobacterial PSII is composed of 1 copy each of membrane proteins PsbA, PsbB, PsbC, PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK, PsbL, PsbM, PsbT, PsbX, PsbY, PsbZ, Ycf12, at least 3 peripheral proteins PsbO, PsbU, PsbV and a large number of cofactors. It forms dimeric complexes. {ECO:0000255|HAMAP-Rule:MF_01317, ECO:0000269|PubMed:14764885, ECO:0000269|PubMed:16355230, ECO:0000269|PubMed:19219048, ECO:0000269|PubMed:20558739, ECO:0000269|PubMed:21367867, ECO:0000269|PubMed:22665786, ECO:0000269|PubMed:23413188, ECO:0000269|PubMed:25006873, ECO:0000269|PubMed:25043005}.

Subcellular location: Cellular thylakoid membrane {ECO:0000255|HAMAP- Rule:MF_01317, ECO:0000269|PubMed:14764885, ECO:0000269|PubMed:16355230, ECO:0000269|PubMed:17935689, ECO:0000269|PubMed:17967798, ECO:0000269|PubMed:19219048, ECO:0000269|PubMed:20558739, ECO:0000269|PubMed:21367867, ECO:0000269|PubMed:22665786, ECO:0000269|PubMed:23413188, ECO:0000269|PubMed:25006873, ECO:0000269|PubMed:25043005}; Single-pass membrane protein {ECO:0000255|HAMAP-Rule:MF_01317, ECO:0000269|PubMed:14764885, ECO:0000269|PubMed:16355230, ECO:0000269|PubMed:17935689, ECO:0000269|PubMed:17967798, ECO:0000269|PubMed:19219048, ECO:0000269|PubMed:20558739, ECO:0000269|PubMed:21367867, ECO:0000269|PubMed:22665786, ECO:0000269|PubMed:23413188, ECO:0000269|PubMed:25006873, ECO:0000269|PubMed:25043005}.

Mass spectrometry: Mass=4301; Mass_error=4; Method=MALDI; Evidence={ECO:0000269|PubMed:19219048};

Mass spectrometry: Mass=4299; Method=MALDI; Evidence={ECO:0000269|PubMed:20558739};

Similarity: Belongs to the PsbL family. {ECO:0000255|HAMAP- Rule:MF_01317}.

Annotations taken from UniProtKB at the EBI.


Organism:		Thermosynechococcus elongatus (strain BP-1).
Taxonomy:		Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Thermosynechococcus.



Function:		One of the components of the core complex of photosystem II (PSII). 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. This subunit is found at the monomer-monomer interface and is required for correct PSII assembly and/or dimerization. This subunit may make specific contacts with lipid(s) (PubMed:16355230). {ECO:0000255\|HAMAP- Rule:MF_01317, ECO:0000269\|PubMed:20558739, ECO:0000269\|PubMed:21367867, ECO:0000269\|PubMed:25006873}.


Cofactor:		Note=PSII binds multiple chlorophylls, carotenoids and specific lipids. {ECO:0000269\|PubMed:14764885, ECO:0000269\|PubMed:16355230, ECO:0000269\|PubMed:17935689, ECO:0000269\|PubMed:17967798, ECO:0000269\|PubMed:19219048, ECO:0000269\|PubMed:20558739, ECO:0000269\|PubMed:21367867, ECO:0000269\|PubMed:22665786, ECO:0000269\|PubMed:23413188, ECO:0000269\|PubMed:25006873, ECO:0000269\|PubMed:25043005};
Subunit:		Cyanobacterial PSII is composed of 1 copy each of membrane proteins PsbA, PsbB, PsbC, PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK, PsbL, PsbM, PsbT, PsbX, PsbY, PsbZ, Ycf12, at least 3 peripheral proteins PsbO, PsbU, PsbV and a large number of cofactors. It forms dimeric complexes. {ECO:0000255\|HAMAP-Rule:MF_01317, ECO:0000269\|PubMed:14764885, ECO:0000269\|PubMed:16355230, ECO:0000269\|PubMed:19219048, ECO:0000269\|PubMed:20558739, ECO:0000269\|PubMed:21367867, ECO:0000269\|PubMed:22665786, ECO:0000269\|PubMed:23413188, ECO:0000269\|PubMed:25006873, ECO:0000269\|PubMed:25043005}.
Subcellular location:		Cellular thylakoid membrane {ECO:0000255\|HAMAP- Rule:MF_01317, ECO:0000269\|PubMed:14764885, ECO:0000269\|PubMed:16355230, ECO:0000269\|PubMed:17935689, ECO:0000269\|PubMed:17967798, ECO:0000269\|PubMed:19219048, ECO:0000269\|PubMed:20558739, ECO:0000269\|PubMed:21367867, ECO:0000269\|PubMed:22665786, ECO:0000269\|PubMed:23413188, ECO:0000269\|PubMed:25006873, ECO:0000269\|PubMed:25043005}; Single-pass membrane protein {ECO:0000255\|HAMAP-Rule:MF_01317, ECO:0000269\|PubMed:14764885, ECO:0000269\|PubMed:16355230, ECO:0000269\|PubMed:17935689, ECO:0000269\|PubMed:17967798, ECO:0000269\|PubMed:19219048, ECO:0000269\|PubMed:20558739, ECO:0000269\|PubMed:21367867, ECO:0000269\|PubMed:22665786, ECO:0000269\|PubMed:23413188, ECO:0000269\|PubMed:25006873, ECO:0000269\|PubMed:25043005}.
Mass spectrometry:		Mass=4301; Mass_error=4; Method=MALDI; Evidence={ECO:0000269\|PubMed:19219048};
Mass spectrometry:		Mass=4299; Method=MALDI; Evidence={ECO:0000269\|PubMed:20558739};
Similarity:		Belongs to the PsbL family. {ECO:0000255\|HAMAP- Rule:MF_01317}.