PHEB_SYNY1
ID PHEB_SYNY1 Reviewed; 186 AA.
AC P20779;
DT 01-FEB-1991, integrated into UniProtKB/Swiss-Prot.
DT 01-FEB-1991, sequence version 1.
DT 03-AUG-2022, entry version 83.
DE RecName: Full=C-phycoerythrin beta chain;
GN Name=cpeB; Synonyms=cpaB;
OS Synechocystis sp. (strain PCC 6701).
OC Bacteria; Cyanobacteria; Oscillatoriophycideae; Chroococcales;
OC Chroococcaceae; Geminocystis; unclassified Geminocystis.
OX NCBI_TaxID=1144;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=2106507; DOI=10.1128/jb.172.3.1297-1305.1990;
RA Anderson L.K., Grossman A.R.;
RT "Structure and light-regulated expression of phycoerythrin genes in wild-
RT type and phycobilisome assembly mutants of Synechocystis sp. strain PCC
RT 6701.";
RL J. Bacteriol. 172:1297-1305(1990).
CC -!- FUNCTION: Light-harvesting photosynthetic bile pigment-protein from the
CC phycobiliprotein complex.
CC -!- SUBUNIT: Heterodimer of an alpha and a beta chain. {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000250};
CC Peripheral membrane protein {ECO:0000250}; Cytoplasmic side
CC {ECO:0000250}. Note=Forms the periphery of the phycobilisome rod.
CC {ECO:0000250}.
CC -!- PTM: Contains three covalently linked bilin chromophores.
CC {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the phycobiliprotein family. {ECO:0000305}.
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DR EMBL; M33812; AAA27279.1; -; Genomic_DNA.
DR PIR; A35127; A35127.
DR AlphaFoldDB; P20779; -.
DR SMR; P20779; -.
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 Pfam; PF00502; Phycobilisome; 1.
DR PIRSF; PIRSF000081; Phycocyanin; 1.
DR SUPFAM; SSF46458; SSF46458; 1.
PE 3: Inferred from homology;
KW Antenna complex; Bile pigment; Chromophore; Electron transport; Membrane;
KW Methylation; Photosynthesis; Phycobilisome; Thylakoid; Transport.
FT CHAIN 1..186
FT /note="C-phycoerythrin beta chain"
FT /id="PRO_0000199207"
FT BINDING 50
FT /ligand="(2R,3E)-phycoerythrobilin"
FT /ligand_id="ChEBI:CHEBI:85276"
FT /ligand_label="1"
FT /note="covalent, via 2 links"
FT /evidence="ECO:0000250"
FT BINDING 61
FT /ligand="(2R,3E)-phycoerythrobilin"
FT /ligand_id="ChEBI:CHEBI:85276"
FT /ligand_label="1"
FT /note="covalent, via 2 links"
FT /evidence="ECO:0000250"
FT BINDING 82
FT /ligand="(2R,3E)-phycoerythrobilin"
FT /ligand_id="ChEBI:CHEBI:85276"
FT /ligand_label="2"
FT /note="covalent, via 1 link"
FT /evidence="ECO:0000250"
FT BINDING 167
FT /ligand="(2R,3E)-phycoerythrobilin"
FT /ligand_id="ChEBI:CHEBI:85276"
FT /ligand_label="3"
FT /note="covalent, via 1 link"
FT /evidence="ECO:0000250"
FT MOD_RES 72
FT /note="N4-methylasparagine"
FT /evidence="ECO:0000250"
SQ SEQUENCE 186 AA; 19488 MW; 5BD2CB606F587805 CRC64;
MLDAFSRAVV SADSKTAPIG GDDLNQLRSF IASGNRRLDA VNAIASNASC MVSDAVAGMI
CENTGLIQAG GNCYPNRRMA ACLRDAEIIL RYVSYALLAG DASVLDDRCL NGLKETYTAL
GVPLQSTARA VAIMKAQAAA HIQDNPSEAL AGAKLRKMGT PVVEDRCASL VAESSSYFDR
VIAALS