PHCB2_SYNP6
ID PHCB2_SYNP6 Reviewed; 173 AA.
AC Q5N4S8;
DT 01-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT 23-JAN-2007, sequence version 3.
DT 03-AUG-2022, entry version 99.
DE RecName: Full=C-phycocyanin-2 beta subunit;
GN Name=cpcB2; OrderedLocusNames=syc0501_c;
OS Synechococcus sp. (strain ATCC 27144 / PCC 6301 / SAUG 1402/1) (Anacystis
OS nidulans).
OC Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus.
OX NCBI_TaxID=269084;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 27144 / PCC 6301 / SAUG 1402/1;
RX PubMed=17211581; DOI=10.1007/s11120-006-9122-4;
RA Sugita C., Ogata K., Shikata M., Jikuya H., Takano J., Furumichi M.,
RA Kanehisa M., Omata T., Sugiura M., Sugita M.;
RT "Complete nucleotide sequence of the freshwater unicellular cyanobacterium
RT Synechococcus elongatus PCC 6301 chromosome: gene content and
RT organization.";
RL Photosyn. Res. 93:55-67(2007).
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. {ECO:0000250}.
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}.
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DR EMBL; AP008231; BAD78691.1; -; Genomic_DNA.
DR RefSeq; WP_011242813.1; NC_006576.1.
DR AlphaFoldDB; Q5N4S8; -.
DR SMR; Q5N4S8; -.
DR STRING; 269084.syc0501_c; -.
DR EnsemblBacteria; BAD78691; BAD78691; syc0501_c.
DR KEGG; syc:syc0501_c; -.
DR eggNOG; ENOG502Z7NE; Bacteria.
DR OMA; CMRDMDI; -.
DR Proteomes; UP000001175; 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; -; 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 3: Inferred from homology;
KW Antenna complex; Bile pigment; Chromophore; Electron transport; Membrane;
KW Methylation; Photosynthesis; Phycobilisome; Thylakoid; Transport.
FT INIT_MET 1
FT /note="Removed"
FT /evidence="ECO:0000250"
FT CHAIN 2..173
FT /note="C-phycocyanin-2 beta subunit"
FT /id="PRO_0000199159"
FT BINDING 83
FT /ligand="(2R,3E)-phycocyanobilin"
FT /ligand_id="ChEBI:CHEBI:85275"
FT /ligand_label="1"
FT /note="covalent, via 1 link"
FT /evidence="ECO:0000250|UniProtKB:P06539"
FT BINDING 154
FT /ligand="(2R,3E)-phycocyanobilin"
FT /ligand_id="ChEBI:CHEBI:85275"
FT /ligand_label="2"
FT /note="covalent, via 1 link"
FT /evidence="ECO:0000250|UniProtKB:P06539"
FT MOD_RES 73
FT /note="N4-methylasparagine"
FT /evidence="ECO:0000250|UniProtKB:P06539"
SQ SEQUENCE 173 AA; 18298 MW; 49DB538B0635EA67 CRC64;
MTFDAFTKVV AQADARGEFL SDAQLDALSR LVAEGNKRID TVNRITGNAS SIVANAARAL
FAEQPSLIAP GGNVYTNRRM AACLRDMEII LRYVTYAVFT GDASILDDRC LNGLRETYLA
LGVPGASVAE GVRKMKDAAV AIVSDRNGIT QGDCSAIISE LGSYFDKAAA AVA
