ID   PHRB_SYNPZ              Reviewed;         172 AA.
AC   P11395;
DT   01-JUL-1989, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 3.
DT   03-AUG-2022, entry version 95.
DE   RecName: Full=R-phycocyanin-2 beta chain;
DE   AltName: Full=R-phycocyanin II beta chain;
GN   Name=rpcB;
OS   Synechococcus sp. (strain WH8103).
OC   Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus;
OC   unclassified Synechococcus.
OX   NCBI_TaxID=29410;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=8425055; DOI=10.1007/bf00019939;
RA   de Lorimier R., Wilbanks S.M., Glazer A.N.;
RT   "Genes of the R-phycocyanin II locus of marine Synechococcus spp., and
RT   comparison of protein-chromophore interactions in phycocyanins differing in
RT   bilin composition.";
RL   Plant Mol. Biol. 21:225-237(1993).
RN   [2]
RP   PROTEIN SEQUENCE OF 2-21; 79-84 AND 147-166, AND SUBUNIT.
RX   PubMed=3571260; DOI=10.1016/s0021-9258(18)45573-1;
RA   Ong L.J., Glazer A.N.;
RT   "R-phycocyanin II, a new phycocyanin occurring in marine Synechococcus
RT   species. Identification of the terminal energy acceptor bilin in
RT   phycocyanins.";
RL   J. Biol. Chem. 262:6323-6327(1987).
CC   -!- FUNCTION: Light-harvesting photosynthetic bile pigment-protein from the
CC       phycobiliprotein complex.
CC   -!- SUBUNIT: Heterodimer of an alpha and a beta chain.
CC       {ECO:0000269|PubMed:3571260}.
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane; Peripheral membrane
CC       protein; Cytoplasmic side. Note=Part of the phycobilisome rod.
CC   -!- PTM: Contains two covalently linked bilin chromophores.
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; M95289; AAA27365.1; -; Genomic_DNA.
DR   RefSeq; WP_049692479.1; NZ_LN847356.1.
DR   AlphaFoldDB; P11395; -.
DR   SMR; P11395; -.
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; -; 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   Pfam; PF00502; Phycobilisome; 1.
DR   PIRSF; PIRSF000081; Phycocyanin; 1.
DR   SUPFAM; SSF46458; SSF46458; 1.
DR   TIGRFAMs; TIGR01339; phycocy_beta; 1.
PE   1: Evidence at protein level;
KW   Antenna complex; Bile pigment; Chromophore; Direct protein sequencing;
KW   Electron transport; Membrane; Methylation; Photosynthesis; Phycobilisome;
KW   Thylakoid; Transport.
FT   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0000269|PubMed:3571260"
FT   CHAIN           2..172
FT                   /note="R-phycocyanin-2 beta chain"
FT                   /id="PRO_0000199166"
FT   BINDING         82
FT                   /ligand="(2R,3E)-phycocyanobilin"
FT                   /ligand_id="ChEBI:CHEBI:85275"
FT                   /note="covalent, via 1 link"
FT   BINDING         153
FT                   /ligand="(2R,3E)-phycoerythrobilin"
FT                   /ligand_id="ChEBI:CHEBI:85276"
FT                   /note="covalent, via 1 link"
FT   MOD_RES         72
FT                   /note="N4-methylasparagine"
FT                   /evidence="ECO:0000250"
FT   CONFLICT        159
FT                   /note="E -> D (in Ref. 2; AA sequence)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   172 AA;  17943 MW;  4B8DF6DBDAD37882 CRC64;
     MFDAFTKVVA QADARGQFIS TSEIDALAAM VSDSNKRLDA VNRISSNAST IVASAARQLF
     AQQPALIAPG GNAYTSRRMA ACLRDMEIIL RYVTYSAFTG DASVMEDRCL NGLRETYLAL
     GTPGASVAAG VNLMKDAALA IINDKAGISA GDCASLSSEI GTYFDRAAAS VA