PCBA_PROMP
ID PCBA_PROMP Reviewed; 352 AA.
AC O07295; Q7V259;
DT 24-JAN-2006, integrated into UniProtKB/Swiss-Prot.
DT 01-JUL-1997, sequence version 1.
DT 03-AUG-2022, entry version 110.
DE RecName: Full=Divinyl chlorophyll a/b light-harvesting protein PcbA;
GN Name=pcbA; Synonyms=pcb; OrderedLocusNames=PMM0627;
OS Prochlorococcus marinus subsp. pastoris (strain CCMP1986 / NIES-2087 /
OS MED4).
OC Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC Prochlorococcus.
OX NCBI_TaxID=59919;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA], PROTEIN SEQUENCE OF 1-17, AND FUNCTION.
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=CCMP1986 / NIES-2087 / MED4;
RX PubMed=12917642; DOI=10.1038/nature01947;
RA Rocap G., Larimer F.W., Lamerdin J.E., Malfatti S., Chain P., Ahlgren N.A.,
RA Arellano A., Coleman M., Hauser L., Hess W.R., Johnson Z.I., Land M.L.,
RA Lindell D., Post A.F., Regala W., Shah M., Shaw S.L., Steglich C.,
RA Sullivan M.B., Ting C.S., Tolonen A., Webb E.A., Zinser E.R.,
RA Chisholm S.W.;
RT "Genome divergence in two Prochlorococcus ecotypes reflects oceanic niche
RT differentiation.";
RL Nature 424:1042-1047(2003).
RN [3]
RP FUNCTION, CHARACTERIZATION OF ENERGETIC COUPLING, CHLOROPHYLL-BINDING,
RP COFACTOR, AND SUBCELLULAR LOCATION.
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 SUBCELLULAR LOCATION, INDUCTION, INVOLVEMENT IN COMPLEXES WITH PHOTOSYSTEM
RP II, AND SUBUNIT.
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 photosystem II and possibly
CC to photosystem I. The Prochlorales pcb genes are not related to higher
CC plant LHCs. {ECO:0000303|PubMed:8986795, ECO:0000303|Ref.3}.
CC -!- COFACTOR:
CC Name=divinyl chlorophyll a; Xref=ChEBI:CHEBI:73095;
CC Evidence={ECO:0000269|Ref.3};
CC -!- COFACTOR:
CC Name=divinyl chlorophyll b; Xref=ChEBI:CHEBI:73096;
CC Evidence={ECO:0000269|Ref.3};
CC -!- SUBUNIT: The antenna complex consists of divinyl chlorophylls (a and b)
CC and divinyl chlorophyll a/b binding proteins and binds less divinyl
CC chlorophyll b than does low-light-adapted Prochlorococcus. Also forms
CC complexes with PSII, consisting of a PSII dimer and 4 or 8 PcbA
CC subunits. These complexes are also found under conditions of iron-
CC starvation. {ECO:0000269|PubMed:12944966}.
CC -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane
CC {ECO:0000269|PubMed:12944966, ECO:0000269|Ref.3}; Multi-pass membrane
CC protein {ECO:0000305|PubMed:12944966, ECO:0000305|Ref.3}.
CC -!- INDUCTION: As the light levels increase antenna complex levels
CC decrease. Transcript expression level is unaffected by iron
CC concentration. {ECO:0000269|PubMed:12944966}.
CC -!- MISCELLANEOUS: This high-light-adapted strain contains only 1 pcb gene.
CC {ECO:0000303|PubMed:12917642}.
CC -!- SIMILARITY: Belongs to the PsbB/PsbC family. IsiA/Pcb subfamily.
CC {ECO:0000305}.
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DR EMBL; U57660; AAC45351.1; -; Genomic_DNA.
DR EMBL; BX548174; CAE19086.1; -; Genomic_DNA.
DR RefSeq; WP_011132261.1; NC_005072.1.
DR AlphaFoldDB; O07295; -.
DR SMR; O07295; -.
DR STRING; 59919.PMM0627; -.
DR EnsemblBacteria; CAE19086; CAE19086; PMM0627.
DR KEGG; pmm:PMM0627; -.
DR eggNOG; ENOG5033QV9; Bacteria.
DR HOGENOM; CLU_028310_0_0_3; -.
DR OMA; YDLNLSH; -.
DR OrthoDB; 417558at2; -.
DR Proteomes; UP000001026; 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; Direct protein sequencing; Membrane;
KW Photosynthesis; Photosystem I; Photosystem II; Thylakoid; Transmembrane;
KW Transmembrane helix.
FT CHAIN 1..352
FT /note="Divinyl chlorophyll a/b light-harvesting protein
FT PcbA"
FT /id="PRO_0000077548"
FT TRANSMEM 27..47
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 90..110
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 142..162
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 203..223
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 243..263
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 306..326
FT /note="Helical"
FT /evidence="ECO:0000255"
FT CONFLICT 9
FT /note="T -> V (in Ref. 1; AA sequence)"
FT /evidence="ECO:0000305"
SQ SEQUENCE 352 AA; 38660 MW; 4714226A25262534 CRC64;
MQTYGNPDTT YGWWAGNSGV ANRSGKFIAA HVAHAGLIVF WAGAFTLFEL SRFDPSVPMG
QQPLIALPHL ATLGIGFDAD GVLMGDTKPV LAIAIVHLVS SMVLAAGGLL HSLLLPGNLE
ESEVAKARKF NIEWDNPDKL TFILGHHLII LGFAVILLVE WARVHGVYDP AIGAVRQVEY
DLNLAEIWNH QTDFLLIDDL EDVMGGHAFL AFVLITGGAW HIATKQVGEY TKFKGKGLLS
AEAVLSWSLA GIGWMAIIAA FWSASNTTVY PVEFFGEPLE LKFSISPYWI DTVDLPDGVY
TSRAWLANVH YYFGFFFIQG HLWHALRALG FDFKRVTNAI SNIDSATVTL KD
