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PCBA_PROMA
ID   PCBA_PROMA              Reviewed;         351 AA.
AC   Q7VCF7; O07306;
DT   24-JAN-2006, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2003, sequence version 1.
DT   03-AUG-2022, entry version 91.
DE   RecName: Full=Divinyl chlorophyll a/b light-harvesting protein PcbA;
GN   Name=pcbA; OrderedLocusNames=Pro_0783;
OS   Prochlorococcus marinus (strain SARG / CCMP1375 / SS120).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=167539;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND FUNCTION.
RC   STRAIN=SARG / CCMP1375 / SS120;
RX   PubMed=8986795; DOI=10.1073/pnas.93.26.15244;
RA   La Roche J., van der Staay G.W.M., Partensky F., Ducret A., Aebersold R.R.,
RA   Li R., Golden S.S., Hiller R.G., Wrench P.M., Larkum A.W.D., Green B.R.;
RT   "Independent evolution of the prochlorophyte and green plant chlorophyll
RT   a/b light-harvesting proteins.";
RL   Proc. Natl. Acad. Sci. U.S.A. 93:15244-15248(1996).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SARG / CCMP1375 / SS120;
RX   PubMed=12917486; DOI=10.1073/pnas.1733211100;
RA   Dufresne A., Salanoubat M., Partensky F., Artiguenave F., Axmann I.M.,
RA   Barbe V., Duprat S., Galperin M.Y., Koonin E.V., Le Gall F., Makarova K.S.,
RA   Ostrowski M., Oztas S., Robert C., Rogozin I.B., Scanlan D.J.,
RA   Tandeau de Marsac N., Weissenbach J., Wincker P., Wolf Y.I., Hess W.R.;
RT   "Genome sequence of the cyanobacterium Prochlorococcus marinus SS120, a
RT   nearly minimal oxyphototrophic genome.";
RL   Proc. Natl. Acad. Sci. U.S.A. 100:10020-10025(2003).
RN   [3]
RP   FUNCTION, CHARACTERIZATION OF ENERGETIC COUPLING, CHLOROPHYLL-BINDING,
RP   COFACTOR, AND SUBCELLULAR LOCATION.
RC   STRAIN=SARG / CCMP1375 / SS120;
RA   Partensky F., La Roche J., Wyman K., Falkowski P.G.;
RT   "The divinyl-chlorophyll a/b-protein complexes of two strains of the
RT   oxyphototrophic marine prokaryote Prochlorococcus -- characterization and
RT   response to changes in growth irradiance.";
RL   Photosyn. Res. 51:209-222(1997).
RN   [4]
RP   INDUCTION.
RC   STRAIN=SARG / CCMP1375 / SS120;
RX   PubMed=11575723; DOI=10.1023/a:1011681726654;
RA   Garczarek L., van der Staay G.W.M., Hess W.R., Le Gall F., Partensky F.;
RT   "Expression and phylogeny of the multiple antenna genes of the low-light-
RT   adapted strain Prochlorococcus marinus SS120 (Oxyphotobacteria).";
RL   Plant Mol. Biol. 46:683-693(2001).
RN   [5]
RP   REPRESSION UNDER IRON-STARVATION.
RC   STRAIN=SARG / CCMP1375 / SS120;
RX   PubMed=12944966; DOI=10.1038/nature01933;
RA   Bibby T.S., Mary I., Nield J., Partensky F., Barber J.;
RT   "Low-light-adapted Prochlorococcus species possess specific antennae for
RT   each photosystem.";
RL   Nature 424:1051-1054(2003).
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:0000303|PubMed:8986795, ECO:0000303|Ref.3}.
CC   -!- COFACTOR:
CC       Name=divinyl chlorophyll a; Xref=ChEBI:CHEBI:73095;
CC         Evidence={ECO:0000303|Ref.3};
CC   -!- COFACTOR:
CC       Name=divinyl chlorophyll b; Xref=ChEBI:CHEBI:73096;
CC         Evidence={ECO:0000303|Ref.3};
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:0000269|Ref.3}.
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000269|Ref.3};
CC       Multi-pass membrane protein {ECO:0000250}.
CC   -!- INDUCTION: This transcript is moderately expressed between 4.5 and 72
CC       umol blue light/m2/s. The whole antenna complex is most highly
CC       expressed under low light; as the light levels increase antenna complex
CC       levels decrease. Thus at least in this strain the amount of antenna
CC       complex is controlled mostly at a post-transcriptional level.
CC       Transcription decreases upon iron starvation.
CC       {ECO:0000269|PubMed:11575723, ECO:0000269|PubMed:12944966}.
CC   -!- MISCELLANEOUS: This low-light-adapted strain contains 8 pcb genes.
CC       {ECO:0000303|PubMed:12917486}.
CC   -!- SIMILARITY: Belongs to the PsbB/PsbC family. IsiA/Pcb subfamily.
CC       {ECO:0000305}.
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DR   EMBL; U57661; AAC45352.1; -; Genomic_DNA.
DR   EMBL; AE017126; AAP99827.1; -; Genomic_DNA.
DR   RefSeq; NP_875175.1; NC_005042.1.
DR   RefSeq; WP_011124935.1; NC_005042.1.
DR   AlphaFoldDB; Q7VCF7; -.
DR   SMR; Q7VCF7; -.
DR   STRING; 167539.Pro_0783; -.
DR   EnsemblBacteria; AAP99827; AAP99827; Pro_0783.
DR   GeneID; 54200130; -.
DR   KEGG; pma:Pro_0783; -.
DR   PATRIC; fig|167539.5.peg.830; -.
DR   eggNOG; ENOG5033QV9; Bacteria.
DR   HOGENOM; CLU_028310_0_0_3; -.
DR   OMA; YDLNLSH; -.
DR   OrthoDB; 417558at2; -.
DR   Proteomes; UP000001420; 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; 2.
DR   Pfam; PF00421; PSII; 1.
DR   SUPFAM; SSF161077; SSF161077; 1.
PE   1: Evidence at protein level;
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                   PcbA"
FT                   /id="PRO_0000077538"
FT   TRANSMEM        27..47
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        64..84
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        89..109
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        305..325
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   CONFLICT        22..24
FT                   /note="NRS -> HPP (in Ref. 1; AAC45352)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        38..41
FT                   /note="IAFW -> DCFL (in Ref. 1; AAC45352)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        164
FT                   /note="H -> D (in Ref. 1; AAC45352)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   351 AA;  38454 MW;  9AFADB810E544FF7 CRC64;
     MQTYGNPDVT YGWWAGNSGV TNRSGKFIAA HAAHTGLIAF WAGAFTLFEL ARFDPSVPMG
     HQPLIALPHL ATLGIGFDEA GTFVGGTTVT AIAIVHLVLS MVYGAGGLLH SLTFPGDMQD
     SEVLQARKFK LEWDNPDNQT FILGHHLIFL GVANIQFVEW ARIHGIWDAA AGSIRQVEYN
     LNLSSIWNHQ FDFLTINNLE DVMGGHAFLA FFMITGGAFH IATKQVGEYT KFKGSGLLSA
     EAILSWSLAG IGWMAIVAAF WCATNTTVYP VDFFGEVLDL KFGIAPYWVD TVDLPNGAHT
     SRAWLTNVHY FLGFFYIQGH LWHALRAMGF DFKRVSSAVS NIGTASVTLN D
 
 
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