ID   PSBH_MICAN              Reviewed;          64 AA.
AC   B0JGF6;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   18-MAR-2008, sequence version 1.
DT   03-AUG-2022, entry version 75.
DE   RecName: Full=Photosystem II reaction center protein H {ECO:0000255|HAMAP-Rule:MF_00752};
DE            Short=PSII-H {ECO:0000255|HAMAP-Rule:MF_00752};
GN   Name=psbH {ECO:0000255|HAMAP-Rule:MF_00752}; OrderedLocusNames=MAE_54000;
OS   Microcystis aeruginosa (strain NIES-843 / IAM M-2473).
OC   Bacteria; Cyanobacteria; Oscillatoriophycideae; Chroococcales;
OC   Microcystaceae; Microcystis.
OX   NCBI_TaxID=449447;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NIES-843 / IAM M-247;
RX   PubMed=18192279; DOI=10.1093/dnares/dsm026;
RA   Kaneko T., Nakajima N., Okamoto S., Suzuki I., Tanabe Y., Tamaoki M.,
RA   Nakamura Y., Kasai F., Watanabe A., Kawashima K., Kishida Y., Ono A.,
RA   Shimizu Y., Takahashi C., Minami C., Fujishiro T., Kohara M., Katoh M.,
RA   Nakazaki N., Nakayama S., Yamada M., Tabata S., Watanabe M.M.;
RT   "Complete genomic structure of the bloom-forming toxic cyanobacterium
RT   Microcystis aeruginosa NIES-843.";
RL   DNA Res. 14:247-256(2007).
CC   -!- FUNCTION: One of the components of the core complex of photosystem II
CC       (PSII), required for its stability and/or assembly. PSII is a light-
CC       driven water:plastoquinone oxidoreductase that uses light energy to
CC       abstract electrons from H(2)O, generating O(2) and a proton gradient
CC       subsequently used for ATP formation. It consists of a core antenna
CC       complex that captures photons, and an electron transfer chain that
CC       converts photonic excitation into a charge separation.
CC       {ECO:0000255|HAMAP-Rule:MF_00752}.
CC   -!- SUBUNIT: PSII is composed of 1 copy each of membrane proteins PsbA,
CC       PsbB, PsbC, PsbD, numerous small proteins, at least 3 peripheral
CC       proteins of the oxygen-evolving complex and a large number of
CC       cofactors. It forms dimeric complexes. {ECO:0000255|HAMAP-
CC       Rule:MF_00752}.
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000255|HAMAP-
CC       Rule:MF_00752}; Single-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_00752}.
CC   -!- SIMILARITY: Belongs to the PsbH family. {ECO:0000255|HAMAP-
CC       Rule:MF_00752}.
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DR   EMBL; AP009552; BAG05222.1; -; Genomic_DNA.
DR   RefSeq; WP_002736544.1; NC_010296.1.
DR   AlphaFoldDB; B0JGF6; -.
DR   SMR; B0JGF6; -.
DR   STRING; 449447.MAE_54000; -.
DR   PaxDb; B0JGF6; -.
DR   EnsemblBacteria; BAG05222; BAG05222; MAE_54000.
DR   GeneID; 66705792; -.
DR   KEGG; mar:MAE_54000; -.
DR   eggNOG; ENOG50332MV; Bacteria.
DR   HOGENOM; CLU_190203_0_0_3; -.
DR   OMA; PLMAVFM; -.
DR   BioCyc; MAER449447:MAE_RS23465-MON; -.
DR   Proteomes; UP000001510; Chromosome.
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:0042301; F:phosphate ion binding; IEA:InterPro.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-UniRule.
DR   GO; GO:0050821; P:protein stabilization; IEA:InterPro.
DR   Gene3D; 1.20.5.880; -; 1.
DR   HAMAP; MF_00752; PSII_PsbH; 1.
DR   InterPro; IPR001056; PSII_PsbH.
DR   InterPro; IPR036863; PSII_PsbH_sf.
DR   PANTHER; PTHR34469; PTHR34469; 1.
DR   Pfam; PF00737; PsbH; 1.
DR   SUPFAM; SSF161025; SSF161025; 1.
PE   3: Inferred from homology;
KW   Membrane; Photosynthesis; Photosystem II; Reference proteome; Thylakoid;
KW   Transmembrane; Transmembrane helix.
FT   CHAIN           1..64
FT                   /note="Photosystem II reaction center protein H"
FT                   /id="PRO_1000083500"
FT   TRANSMEM        29..49
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00752"
SQ   SEQUENCE   64 AA;  7233 MW;  F2A0DF9FFACEA21E CRC64;
     MAQRTRLGEI LRPLNSEYGK VSPGWGTTLL MGVFMALFLV FLLIILQIYN SSLILEGFNV
     DWGQ