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PSBC_MESVI
ID   PSBC_MESVI              Reviewed;         473 AA.
AC   Q9MUW1;
DT   27-APR-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2000, sequence version 1.
DT   03-AUG-2022, entry version 76.
DE   RecName: Full=Photosystem II CP43 reaction center protein {ECO:0000255|HAMAP-Rule:MF_01496};
DE   AltName: Full=PSII 43 kDa protein {ECO:0000255|HAMAP-Rule:MF_01496};
DE   AltName: Full=Protein CP-43 {ECO:0000255|HAMAP-Rule:MF_01496};
DE   Flags: Precursor;
GN   Name=psbC {ECO:0000255|HAMAP-Rule:MF_01496};
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). It binds chlorophyll and helps catalyze the primary light-
CC       induced photochemical processes of PSII. PSII is a light-driven
CC       water:plastoquinone oxidoreductase, using light energy to abstract
CC       electrons from H(2)O, generating O(2) and a proton gradient
CC       subsequently used for ATP formation. {ECO:0000255|HAMAP-Rule:MF_01496}.
CC   -!- COFACTOR:
CC       Note=Binds multiple chlorophylls and provides some of the ligands for
CC       the Ca-4Mn-5O cluster of the oxygen-evolving complex. It may also
CC       provide a ligand for a Cl- that is required for oxygen evolution. PSII
CC       binds additional chlorophylls, carotenoids and specific lipids.
CC       {ECO:0000255|HAMAP-Rule:MF_01496};
CC   -!- SUBUNIT: PSII is composed of 1 copy each of membrane proteins PsbA,
CC       PsbB, PsbC, PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK, PsbL, PsbM, PsbT,
CC       PsbX, PsbY, PsbZ, Ycf12, at least 3 peripheral proteins of the oxygen-
CC       evolving complex and a large number of cofactors. It forms dimeric
CC       complexes. {ECO:0000255|HAMAP-Rule:MF_01496}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000250, ECO:0000255|HAMAP-Rule:MF_01496}; Multi-pass membrane
CC       protein {ECO:0000250, ECO:0000255|HAMAP-Rule:MF_01496}.
CC   -!- SIMILARITY: Belongs to the PsbB/PsbC family. PsbC subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_01496}.
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DR   EMBL; AF166114; AAF43790.1; -; Genomic_DNA.
DR   RefSeq; NP_038349.2; NC_002186.1.
DR   AlphaFoldDB; Q9MUW1; -.
DR   SMR; Q9MUW1; -.
DR   PRIDE; Q9MUW1; -.
DR   GeneID; 800955; -.
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:0016168; F:chlorophyll binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0045156; F:electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity; IEA:InterPro.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0009772; P:photosynthetic electron transport in photosystem II; IEA:InterPro.
DR   Gene3D; 1.10.10.670; -; 1.
DR   HAMAP; MF_01496; PSII_PsbC_CP43; 1.
DR   InterPro; IPR000932; PS_antenna-like.
DR   InterPro; IPR036001; PS_II_antenna-like_sf.
DR   InterPro; IPR005869; PSII_PsbC.
DR   InterPro; IPR044900; PSII_PsbC_sf.
DR   PANTHER; PTHR33180; PTHR33180; 1.
DR   Pfam; PF00421; PSII; 1.
DR   SUPFAM; SSF161077; SSF161077; 1.
DR   TIGRFAMs; TIGR01153; psbC; 1.
PE   3: Inferred from homology;
KW   Acetylation; Chlorophyll; Chloroplast; Chromophore; Manganese; Membrane;
KW   Metal-binding; Phosphoprotein; Photosynthesis; Photosystem II; Plastid;
KW   Thylakoid; Transmembrane; Transmembrane helix.
FT   PROPEP          1..14
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01496"
FT                   /id="PRO_0000431166"
FT   CHAIN           15..473
FT                   /note="Photosystem II CP43 reaction center protein"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01496"
FT                   /id="PRO_0000077520"
FT   TRANSMEM        73..88
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01496"
FT   TRANSMEM        139..153
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01496"
FT   TRANSMEM        180..196
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01496"
FT   TRANSMEM        262..276
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01496"
FT   TRANSMEM        292..307
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01496"
FT   TRANSMEM        452..468
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01496"
FT   BINDING         367
FT                   /ligand="[CaMn4O5] cluster"
FT                   /ligand_id="ChEBI:CHEBI:189552"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01496"
FT   MOD_RES         15
FT                   /note="N-acetylthreonine"
FT                   /evidence="ECO:0000250, ECO:0000255|HAMAP-Rule:MF_01496"
FT   MOD_RES         15
FT                   /note="Phosphothreonine"
FT                   /evidence="ECO:0000250, ECO:0000255|HAMAP-Rule:MF_01496"
SQ   SEQUENCE   473 AA;  52128 MW;  69E9FB49EA522DFA CRC64;
     MKTLYSLRRF YHVETLFNGT LSISGRDQES TGFAWWSGNA RLINLSGKLL GAHVAHAGLI
     VFWAGAMNLF EVAHFTPEKP MYEQGLILLP HLATLGWGVG PGGEVIDTFP YFVSGVLHLI
     SSAVLGFGGV YHSLIGPETL EESFPFFGYV WKDKNKMTTI LGIHLIVLGV GAYLLVWKAC
     YFGGVYDTWA PGGGDVRIIT DPTLSPAVIF GYLLKSPFGG EGWICSVDNM EDVIGGHIWI
     GNLLIFGGIW HILTKPWAWA RRAFVWSGEA YLSYSLGAIA TMGWIACCFS WFNNTAYPSE
     FYGPTGPEAS QAQAFTFLVR DQRLGANIAS SQGPTGLGKY LMRSPSGEII FGGETMRFWD
     CRAPWIEPLR GPNGLDLNKL KNDIQPWQER RSAEYMTHAP LGSLNSVGGV ATEINAVNFV
     SPRSWLATSH FTLAFFFFVG HLWHAGRARA AAAGFEKGIE RETEPVLFMK PLD
 
 
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