ID PHCB_SYNPW Reviewed; 172 AA.
AC P27289; A5GIZ1;
DT 01-AUG-1992, integrated into UniProtKB/Swiss-Prot.
DT 23-JAN-2007, sequence version 3.
DT 27-MAR-2024, entry version 126.
DE RecName: Full=R-phycocyanin beta subunit;
GN Name=rpcB; Synonyms=cpcB; OrderedLocusNames=SynWH7803_0480;
OS Synechococcus sp. (strain WH7803).
OC Bacteria; Cyanobacteriota; Cyanophyceae; Synechococcales; Synechococcaceae;
OC Synechococcus.
OX NCBI_TaxID=32051;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=1912508; DOI=10.1007/bf00037076;
RA Wilson W.H., Newman J., Mann N.H., Carr N.G.;
RT "Cloning and sequence analysis of the phycocyanin genes of the marine
RT cyanobacterium Synechococcus sp. WH7803.";
RL Plant Mol. Biol. 17:931-933(1991).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=WH7803;
RG Genoscope;
RL Submitted (MAY-2006) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Light-harvesting photosynthetic bile pigment-protein from the
CC phycobiliprotein complex (phycobilisome, PBS). Phycocyanin is the major
CC phycobiliprotein in the PBS rod.
CC -!- SUBUNIT: Heterodimer of an alpha and a beta subunit, which further
CC assembles into trimers and the trimers into hexamers.
CC {ECO:0000250|UniProtKB:P06539}.
CC -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000250};
CC Peripheral membrane protein {ECO:0000250}; Cytoplasmic side
CC {ECO:0000250}. Note=Part of the phycobilisome rod. {ECO:0000250}.
CC -!- PTM: Contains two covalently linked bilin chromophores. {ECO:0000250,
CC ECO:0000250|UniProtKB:P06539}.
CC -!- SIMILARITY: Belongs to the phycobiliprotein family. {ECO:0000305}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; X59809; CAA42479.1; -; Genomic_DNA.
DR EMBL; CT971583; CAK22906.1; -; Genomic_DNA.
DR PIR; S17734; CFYCB3.
DR AlphaFoldDB; P27289; -.
DR SMR; P27289; -.
DR STRING; 32051.SynWH7803_0480; -.
DR KEGG; syx:SynWH7803_0480; -.
DR eggNOG; ENOG502Z7NE; Bacteria.
DR HOGENOM; CLU_104219_0_0_3; -.
DR OrthoDB; 512145at2; -.
DR Proteomes; UP000001566; Chromosome.
DR GO; GO:0030089; C:phycobilisome; IEA:UniProtKB-KW.
DR GO; GO:0031676; C:plasma membrane-derived thylakoid membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR Gene3D; 1.10.490.20; Phycocyanins; 1.
DR InterPro; IPR009050; Globin-like_sf.
DR InterPro; IPR012128; Phycobilisome_asu/bsu.
DR InterPro; IPR038719; Phycobilisome_asu/bsu_sf.
DR InterPro; IPR006247; Phycocyanin_b.
DR NCBIfam; TIGR01339; phycocy_beta; 1.
DR PANTHER; PTHR34011:SF7; C-PHYCOCYANIN BETA SUBUNIT; 1.
DR PANTHER; PTHR34011; PHYCOBILISOME 32.1 KDA LINKER POLYPEPTIDE, PHYCOCYANIN-ASSOCIATED, ROD 2-RELATED; 1.
DR Pfam; PF00502; Phycobilisome; 1.
DR PIRSF; PIRSF000081; Phycocyanin; 1.
DR SUPFAM; SSF46458; Globin-like; 1.
PE 3: Inferred from homology;
KW Antenna complex; Bile pigment; Chromophore; Electron transport; Membrane;
KW Methylation; Photosynthesis; Phycobilisome; Reference proteome; Thylakoid;
KW Transport.
FT INIT_MET 1
FT /note="Removed"
FT /evidence="ECO:0000250"
FT CHAIN 2..172
FT /note="R-phycocyanin beta subunit"
FT /id="PRO_0000199164"
FT BINDING 82
FT /ligand="(2R,3E)-phycocyanobilin"
FT /ligand_id="ChEBI:CHEBI:85275"
FT /note="covalent"
FT /evidence="ECO:0000250|UniProtKB:P06539"
FT BINDING 153
FT /ligand="(2R,3E)-phycoerythrobilin"
FT /ligand_id="ChEBI:CHEBI:85276"
FT /note="covalent"
FT /evidence="ECO:0000250|UniProtKB:P06539"
FT MOD_RES 72
FT /note="N4-methylasparagine"
FT /evidence="ECO:0000250|UniProtKB:P06539"
SQ SEQUENCE 172 AA; 17909 MW; 0C99C11E77A13739 CRC64;
MFDAFTKVVA QADARGQFIS ASEIDALAAM VSDSNKRLDA VNRISSNAST IVASAARQLF
AQQPSLIAPG GNAYTSRRMA ACLRDMEIIL RYVTYASFAG DASVLEDRCL NGLRETYLAL
GTPGASVAAG VNLMKESALA IVNDRAGISA GDCASLSSEI GTYFDRAAAA VA
//
