PCBA_PROHO
ID PCBA_PROHO Reviewed; 350 AA.
AC P95503;
DT 24-JAN-2006, integrated into UniProtKB/Swiss-Prot.
DT 23-JAN-2007, sequence version 3.
DT 03-AUG-2022, entry version 74.
DE RecName: Full=Chlorophyll a/b light-harvesting protein PcbA;
GN Name=pcbA;
OS Prochlorothrix hollandica.
OC Bacteria; Cyanobacteria; Pseudanabaenales; Prochlorotrichaceae;
OC Prochlorothrix.
OX NCBI_TaxID=1223;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND PROTEIN SEQUENCE OF 2-10; 112-124;
RP 126-137; 286-302 AND 342-348.
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 [GENOMIC DNA].
RX PubMed=9526503; DOI=10.1023/a:1005930210515;
RA van der Staay G.W.M., Yurkova N., Green B.R.;
RT "The 38 kDa chlorophyll a/b protein of the prokaryote Prochlorothrix
RT hollandica is encoded by a divergent pcb gene.";
RL Plant Mol. Biol. 36:709-716(1998).
RN [3]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA van der Staay G.W.M., Ducret A., Aebersold R.R., Li R., Golden S.S.,
RA Hiller R.G., Wrench P.M., Larkum A.W.D., Green B.R.;
RT "The Chl a/b antenna from prochlorophytes is related to the iron stress-
RT induced Chl a antenna from cyanobacteria.";
RL (In) Mathis P. (eds.);
RL Photosynthesis from light to biosphere, pp.1:175-178, Kluwer Academic
RL Publishers, Dordrechts (1995).
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=chlorophyll a; Xref=ChEBI:CHEBI:58416;
CC Evidence={ECO:0000250|UniProtKB:Q6Q972};
CC Note=Chlorophyll a. {ECO:0000250|UniProtKB:Q6Q972};
CC -!- COFACTOR:
CC Name=chlorophyll b; Xref=ChEBI:CHEBI:61721;
CC Evidence={ECO:0000250|UniProtKB:Q6Q972};
CC Note=Chlorophyll b. {ECO:0000250|UniProtKB:Q6Q972};
CC -!- SUBUNIT: The antenna complex consists of chlorophylls (a and b) and
CC chlorophyll a/b binding proteins. {ECO:0000250|UniProtKB:Q6Q972}.
CC -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane
CC {ECO:0000250|UniProtKB:Q6Q972}; Multi-pass membrane protein
CC {ECO:0000250|UniProtKB:Q6Q972}.
CC -!- SIMILARITY: Belongs to the PsbB/PsbC family. IsiA/Pcb subfamily.
CC {ECO:0000305}.
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DR EMBL; X97043; CAA65757.1; -; Genomic_DNA.
DR AlphaFoldDB; P95503; -.
DR SMR; P95503; -.
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 1: Evidence at protein level;
KW Chlorophyll; Chromophore; Direct protein sequencing; Membrane;
KW Photosynthesis; Photosystem I; Photosystem II; Thylakoid; Transmembrane;
KW Transmembrane helix.
FT INIT_MET 1
FT /note="Removed"
FT /evidence="ECO:0000269|PubMed:8986795"
FT CHAIN 2..350
FT /note="Chlorophyll a/b light-harvesting protein PcbA"
FT /id="PRO_0000077535"
FT TRANSMEM 26..46
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 62..82
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 87..107
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 214..234
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 248..268
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 309..329
FT /note="Helical"
FT /evidence="ECO:0000255"
FT CONFLICT 128
FT /note="H -> P (in Ref. 1; AA sequence)"
FT /evidence="ECO:0000305"
FT CONFLICT 136..137
FT /note="KL -> QA (in Ref. 1; AA sequence)"
FT /evidence="ECO:0000305"
FT CONFLICT 345..348
FT /note="SLSG -> FDFK (in Ref. 1; AA sequence)"
FT /evidence="ECO:0000305"
SQ SEQUENCE 350 AA; 38261 MW; 0AD2E441E06B35EF CRC64;
MATTATPEYG WWAGNSRFAL QSGKWLSAHI AQYALITFWA GGITLFELAR YNPDVSMGEQ
GLILIPHLAT LGWGIGSGGQ VVDTYPYFVI GVIHLVASAV FGAGALYHAL KGPEDLSQSD
FEFAKNFHFE WDDAAKLGNI LGHHLLTLGY AALLFVIWLR FHGVYDSTIG EVRVVTNPGA
TILSVLFEYG WFTPDHNPYF VNNLEDLASG HAYIAVVLLA GGFWHINQAP FPWAQRLLAS
LFSPEGLLSA SLAGLSMAGF AAAYFSAVNT LAYPVEFFGP PLELKFSVAP YFVDTIDLPN
GAHTARAWLC NVHFFLAFFV LQGHLWHALR ALGFDFKRIP QALGSLSGEA
