PSBH_MESVI
ID PSBH_MESVI Reviewed; 73 AA.
AC Q9MUV4;
DT 24-JAN-2001, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-2000, sequence version 1.
DT 03-AUG-2022, entry version 69.
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};
DE AltName: Full=Photosystem II 10 kDa phosphoprotein {ECO:0000305};
GN Name=psbH {ECO:0000255|HAMAP-Rule:MF_00752};
OS Mesostigma viride (Green alga).
OG Plastid; Chloroplast.
OC Eukaryota; Viridiplantae; Streptophyta; Mesostigmatophyceae;
OC Mesostigmatales; Mesostigmataceae; Mesostigma.
OX NCBI_TaxID=41882;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NIES-296 / KY-14 / CCMP 2046;
RX PubMed=10688199; DOI=10.1038/35001059;
RA Lemieux C., Otis C., Turmel M.;
RT "Ancestral chloroplast genome in Mesostigma viride reveals an early branch
RT of green plant evolution.";
RL Nature 403:649-652(2000).
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: Plastid, chloroplast thylakoid membrane
CC {ECO:0000255|HAMAP-Rule:MF_00752}; Single-pass membrane protein
CC {ECO:0000255|HAMAP-Rule:MF_00752}.
CC -!- PTM: Phosphorylation is a light-dependent reaction catalyzed by a
CC membrane-bound kinase; phosphorylation occurs on Thr residue(s) in the
CC N-terminus of the protein. {ECO:0000305}.
CC -!- SIMILARITY: Belongs to the PsbH family. {ECO:0000255|HAMAP-
CC Rule:MF_00752}.
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DR EMBL; AF166114; AAF43797.1; -; Genomic_DNA.
DR RefSeq; NP_038356.1; NC_002186.1.
DR AlphaFoldDB; Q9MUV4; -.
DR SMR; Q9MUV4; -.
DR GeneID; 800976; -.
DR GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
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: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 Chloroplast; Membrane; Phosphoprotein; Photosynthesis; Photosystem II;
KW Plastid; Thylakoid; Transmembrane; Transmembrane helix.
FT CHAIN 1..73
FT /note="Photosystem II reaction center protein H"
FT /id="PRO_0000070517"
FT TRANSMEM 34..54
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00752"
FT MOD_RES 4
FT /note="Phosphothreonine"
FT /evidence="ECO:0000305"
SQ SEQUENCE 73 AA; 7911 MW; 3D4724BB71DD982E CRC64;
MADTSQGKRT VVGNFLKPLN SEYGKVAPGW GTTVLMGVFM ALFAVFLVII LQIYNASVLL
DGIPANWSSL SKY
