ID   PCBC_PROMT              Reviewed;         351 AA.
AC   Q46JX0;
DT   24-JAN-2006, integrated into UniProtKB/Swiss-Prot.
DT   13-SEP-2005, sequence version 1.
DT   03-AUG-2022, entry version 82.
DE   RecName: Full=Divinyl chlorophyll a/b light-harvesting protein PcbC;
GN   Name=pcbC; OrderedLocusNames=PMN2A_0717;
OS   Prochlorococcus marinus (strain NATL2A).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=59920;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NATL2A;
RX   PubMed=18159947; DOI=10.1371/journal.pgen.0030231;
RA   Kettler G.C., Martiny A.C., Huang K., Zucker J., Coleman M.L., Rodrigue S.,
RA   Chen F., Lapidus A., Ferriera S., Johnson J., Steglich C., Church G.M.,
RA   Richardson P., Chisholm S.W.;
RT   "Patterns and implications of gene gain and loss in the evolution of
RT   Prochlorococcus.";
RL   PLoS Genet. 3:2515-2528(2007).
CC   -!- FUNCTION: The antenna complex functions as a light receptor, it
CC       captures and delivers excitation energy to photosystems II and I. The
CC       Prochlorales pcb genes are not related to higher plant LHCs.
CC       {ECO:0000250|UniProtKB:Q6Q972}.
CC   -!- COFACTOR:
CC       Name=divinyl chlorophyll a; Xref=ChEBI:CHEBI:73095;
CC         Evidence={ECO:0000250|UniProtKB:Q6Q972};
CC   -!- COFACTOR:
CC       Name=divinyl chlorophyll b; Xref=ChEBI:CHEBI:73096;
CC         Evidence={ECO:0000250|UniProtKB:Q6Q972};
CC   -!- SUBUNIT: The antenna complex consists of divinyl chlorophylls (a and b)
CC       and divinyl chlorophyll a/b binding proteins and binds more divinyl
CC       chlorophyll b than does the antenna complex from high-light-adapted
CC       Prochlorococcus. {ECO:0000250|UniProtKB:Q6Q972}.
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane
CC       {ECO:0000250|UniProtKB:Q6Q972}; Multi-pass membrane protein
CC       {ECO:0000250}.
CC   -!- MISCELLANEOUS: This low-light-adapted strain contains 7 pcb genes.
CC       {ECO:0000303|PubMed:18159947}.
CC   -!- SIMILARITY: Belongs to the PsbB/PsbC family. IsiA/Pcb subfamily.
CC       {ECO:0000305}.
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DR   EMBL; CP000095; AAZ58208.1; -; Genomic_DNA.
DR   RefSeq; WP_011294806.1; NC_007335.2.
DR   AlphaFoldDB; Q46JX0; -.
DR   SMR; Q46JX0; -.
DR   STRING; 59920.PMN2A_0717; -.
DR   EnsemblBacteria; AAZ58208; AAZ58208; PMN2A_0717.
DR   KEGG; pmn:PMN2A_0717; -.
DR   HOGENOM; CLU_028310_0_0_3; -.
DR   OMA; FHIATRQ; -.
DR   OrthoDB; 417558at2; -.
DR   PhylomeDB; Q46JX0; -.
DR   Proteomes; UP000002535; Chromosome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0009522; C:photosystem I; 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:0016168; F:chlorophyll binding; IEA:UniProtKB-KW.
DR   GO; GO:0009767; P:photosynthetic electron transport chain; IEA:InterPro.
DR   InterPro; IPR000932; PS_antenna-like.
DR   InterPro; IPR036001; PS_II_antenna-like_sf.
DR   PANTHER; PTHR33180; PTHR33180; 1.
DR   Pfam; PF00421; PSII; 1.
DR   SUPFAM; SSF161077; SSF161077; 1.
PE   3: Inferred from homology;
KW   Chlorophyll; Chromophore; Membrane; Photosynthesis; Photosystem I;
KW   Photosystem II; Reference proteome; Thylakoid; Transmembrane;
KW   Transmembrane helix.
FT   CHAIN           1..351
FT                   /note="Divinyl chlorophyll a/b light-harvesting protein
FT                   PcbC"
FT                   /id="PRO_0000077551"
FT   TRANSMEM        27..47
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        81..101
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        140..160
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        202..222
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        242..262
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        309..329
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   351 AA;  38625 MW;  2CA0DD9D3025E06A CRC64;
     MQTYGNPDVT YGWWVGNSVV TNRAGRFIGS HIGHTGLICF AAGGSTLWEL ARYNPEIPMG
     HQSSIFLAHL ASLGLGFDEA GVWTGAGVAT IAIFHLIFSA VYGTAGLAHS LLFDPDLKDG
     PIPTTKKFKL EWDNPDNLTF ILGHHLIFFG VANIWFVEWA RWHGIYDPAI GEIRTIFPGY
     GDFGMVYGHQ FDFLTIDSLE EVMSGHAFLA FVQISGGAWH IATKQLGEYT EFKGKGLLSA
     EAVLSWSLAG IGWMAIVAAF WCAQNTTVYP IDWYGEPLAL KFGISPYWVD TGDVSDSTAF
     LGHTTRAALS NVHYYFGFFF IQGHIWHALR AMGFDFRRVV GSVASLATTE S