PSBY_THEVL
ID PSBY_THEVL Reviewed; 34 AA.
AC P0DM37;
DT 29-MAY-2013, integrated into UniProtKB/Swiss-Prot.
DT 29-MAY-2013, sequence version 1.
DT 25-MAY-2022, entry version 26.
DE RecName: Full=Photosystem II protein Y;
DE Flags: Fragment;
GN Name=psbY;
OS Thermostichus vulcanus (Synechococcus vulcanus).
OC Bacteria; Cyanobacteria; Thermostichales; Thermostichaceae; Thermostichus.
OX NCBI_TaxID=32053;
RN [1]
RP X-RAY CRYSTALLOGRAPHY (2.1 ANGSTROMS) IN PHOTOSYSTEM II, FUNCTION,
RP COFACTOR, SUBUNIT, SUBCELLULAR LOCATION, AND TOPOLOGY.
RX PubMed=23426624; DOI=10.1073/pnas.1219922110;
RA Koua F.H., Umena Y., Kawakami K., Shen J.R.;
RT "Structure of Sr-substituted photosystem II at 2.1 A resolution and its
RT implications in the mechanism of water oxidation.";
RL Proc. Natl. Acad. Sci. U.S.A. 110:3889-3894(2013).
CC -!- FUNCTION: Loosely associated component of the core of photosystem II
CC (PSII). PSII is a light-driven water plastoquinone oxidoreductase,
CC using light energy to abstract electrons from H(2)O, generating a
CC proton gradient subsequently used for ATP formation.
CC {ECO:0000269|PubMed:23426624}.
CC -!- COFACTOR:
CC Note=PSII binds multiple chlorophylls, carotenoids and specific lipids.
CC {ECO:0000269|PubMed:23426624};
CC -!- SUBUNIT: Cyanobacterial PSII is composed of 1 copy each of membrane
CC proteins PsbA, PsbB, PsbC, PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK,
CC PsbL, PsbM, PsbT, PsbX, PsbY, PsbZ, Ycf12, 3 peripheral proteins PsbO,
CC PsbU, PsbV and a large number of cofactors. It forms dimeric complexes.
CC This protein is only loosely associated with PSII, and is not often
CC found in crystals. {ECO:0000269|PubMed:23426624}.
CC -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane
CC {ECO:0000269|PubMed:23426624}; Single-pass membrane protein
CC {ECO:0000269|PubMed:23426624}.
CC -!- SIMILARITY: Belongs to the PsbY family. {ECO:0000305}.
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DR PDB; 4IL6; X-ray; 2.10 A; R=1-28.
DR PDB; 4UB6; X-ray; 1.95 A; R=1-34.
DR PDB; 4UB8; X-ray; 1.95 A; R=1-34.
DR PDB; 5GTH; X-ray; 2.50 A; R=1-34.
DR PDB; 5GTI; X-ray; 2.50 A; R=1-34.
DR PDB; 5WS5; X-ray; 2.35 A; R=1-34.
DR PDB; 5WS6; X-ray; 2.35 A; R=1-34.
DR PDB; 6JLJ; X-ray; 2.15 A; R=1-34.
DR PDB; 6JLK; X-ray; 2.15 A; R=1-34.
DR PDB; 6JLL; X-ray; 2.15 A; R=1-34.
DR PDB; 6JLM; X-ray; 2.35 A; R=1-34.
DR PDB; 6JLN; X-ray; 2.40 A; R=1-34.
DR PDB; 6JLO; X-ray; 2.40 A; R=1-34.
DR PDB; 6JLP; X-ray; 2.50 A; R=1-34.
DR PDB; 7CJI; X-ray; 2.35 A; R=1-34.
DR PDB; 7CJJ; X-ray; 2.40 A; R=1-34.
DR PDB; 7COU; X-ray; 2.25 A; R=1-34.
DR PDB; 7D1T; EM; 1.95 A; R/r=1-34.
DR PDB; 7D1U; EM; 2.08 A; R/r=1-34.
DR PDB; 7EDA; EM; 2.78 A; R=1-34.
DR PDBsum; 4IL6; -.
DR PDBsum; 4UB6; -.
DR PDBsum; 4UB8; -.
DR PDBsum; 5GTH; -.
DR PDBsum; 5GTI; -.
DR PDBsum; 5WS5; -.
DR PDBsum; 5WS6; -.
DR PDBsum; 6JLJ; -.
DR PDBsum; 6JLK; -.
DR PDBsum; 6JLL; -.
DR PDBsum; 6JLM; -.
DR PDBsum; 6JLN; -.
DR PDBsum; 6JLO; -.
DR PDBsum; 6JLP; -.
DR PDBsum; 7CJI; -.
DR PDBsum; 7CJJ; -.
DR PDBsum; 7COU; -.
DR PDBsum; 7D1T; -.
DR PDBsum; 7D1U; -.
DR PDBsum; 7EDA; -.
DR AlphaFoldDB; P0DM37; -.
DR SMR; P0DM37; -.
DR DIP; DIP-61468N; -.
DR IntAct; P0DM37; 1.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0009523; C:photosystem II; IEA:UniProtKB-KW.
DR GO; GO:0031676; C:plasma membrane-derived thylakoid membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0030145; F:manganese ion binding; IEA:InterPro.
DR GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR HAMAP; MF_00717; PSII_PsbY; 1.
DR InterPro; IPR009388; PSII_PsbY.
DR Pfam; PF06298; PsbY; 1.
PE 1: Evidence at protein level;
KW 3D-structure; Membrane; Photosynthesis; Photosystem II; Thylakoid;
KW Transmembrane; Transmembrane helix.
FT CHAIN 1..34
FT /note="Photosystem II protein Y"
FT /id="PRO_0000422605"
FT TOPO_DOM 1..5
FT /note="Lumenal"
FT /evidence="ECO:0000269|PubMed:23426624"
FT TRANSMEM 6..22
FT /note="Helical"
FT /evidence="ECO:0000269|PubMed:23426624"
FT TOPO_DOM 23..34
FT /note="Cytoplasmic"
FT /evidence="ECO:0000269|PubMed:23426624"
FT NON_TER 1
FT NON_TER 34
FT HELIX 2..33
FT /evidence="ECO:0007829|PDB:4UB6"
SQ SEQUENCE 34 AA; 3856 MW; DF86E75EBEB4A601 CRC64;
DWRVLVVLLP VLLAAGWAVR NILPYAVKQV QKLL
