ID   PYG1_SYNP2              Reviewed;         248 AA.
AC   Q05238; B1XIE4;
DT   01-FEB-1994, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 3.
DT   25-MAY-2022, entry version 109.
DE   RecName: Full=Phycobilisome rod-core linker polypeptide CpcG;
DE   AltName: Full=L-RC 28.5;
GN   Name=cpcG; OrderedLocusNames=SYNPCC7002_A0811;
OS   Synechococcus sp. (strain ATCC 27264 / PCC 7002 / PR-6) (Agmenellum
OS   quadruplicatum).
OC   Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus;
OC   unclassified Synechococcus.
OX   NCBI_TaxID=32049;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Bryant D.A.;
RT   "Cyanobacterial phycobilisomes: progress towards a complete structural and
RT   functional analysis via molecular genetics.";
RL   (In) Bogorad L., Vasil I.K. (eds.);
RL   Cell culture and somatic cell genetics of plants, pp.7B:255-298, Academic
RL   Press, New York (1991).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 27264 / PCC 7002 / PR-6;
RA   Li T., Zhao J., Zhao C., Liu Z., Zhao F., Marquardt J., Nomura C.T.,
RA   Persson S., Detter J.C., Richardson P.M., Lanz C., Schuster S.C., Wang J.,
RA   Li S., Huang X., Cai T., Yu Z., Luo J., Zhao J., Bryant D.A.;
RT   "Complete sequence of Synechococcus sp. PCC 7002.";
RL   Submitted (FEB-2008) to the EMBL/GenBank/DDBJ databases.
RN   [3]
RP   PROTEIN SEQUENCE OF 2-23.
RX   PubMed=2164365; DOI=10.1007/bf00245264;
RA   Bryant D.A., de Lorimier R., Guglielmi G., Stevens S.E. Jr.;
RT   "Structural and compositional analyses of the phycobilisomes of
RT   Synechococcus sp. PCC 7002. Analyses of the wild-type strain and a
RT   phycocyanin-less mutant constructed by interposon mutagenesis.";
RL   Arch. Microbiol. 153:550-560(1990).
CC   -!- FUNCTION: Rod-core linker protein required for attachment of
CC       phycocyanin to allophycocyanin in cores of phycobilisomes.
CC   -!- FUNCTION: Linker polypeptides determine the state of aggregation and
CC       the location of the disk-shaped phycobiliprotein units within the
CC       phycobilisome and modulate their spectroscopic properties in order to
CC       mediate a directed and optimal energy transfer.
CC   -!- SUBUNIT: The phycobilisome is a hemidiscoidal structure that is
CC       composed of two distinct substructures: a core complex and a number of
CC       rods radiating from the core.
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000250};
CC       Peripheral membrane protein {ECO:0000250}; Cytoplasmic side
CC       {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the phycobilisome linker protein family.
CC       {ECO:0000255|PROSITE-ProRule:PRU00775}.
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DR   EMBL; CP000951; ACA98815.1; -; Genomic_DNA.
DR   RefSeq; WP_012306439.1; NC_010475.1.
DR   PDB; 7EXT; EM; 3.50 A; A1/A2/A4/A5/A6/A8=1-248.
DR   PDBsum; 7EXT; -.
DR   AlphaFoldDB; Q05238; -.
DR   SMR; Q05238; -.
DR   STRING; 32049.SYNPCC7002_A0811; -.
DR   EnsemblBacteria; ACA98815; ACA98815; SYNPCC7002_A0811.
DR   KEGG; syp:SYNPCC7002_A0811; -.
DR   eggNOG; COG0448; Bacteria.
DR   HOGENOM; CLU_086930_0_0_3; -.
DR   OMA; GFPQIIW; -.
DR   Proteomes; UP000001688; 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; 1.10.3130.20; -; 1.
DR   InterPro; IPR001297; PBS_linker_dom.
DR   InterPro; IPR038255; PBS_linker_sf.
DR   InterPro; IPR016470; Phycobilisome.
DR   Pfam; PF00427; PBS_linker_poly; 1.
DR   PIRSF; PIRSF005898; Phycobilisome_CpeC/CpcI; 1.
DR   PROSITE; PS51445; PBS_LINKER; 1.
PE   1: Evidence at protein level;
KW   3D-structure; Antenna complex; Direct protein sequencing; Membrane;
KW   Photosynthesis; Phycobilisome; Reference proteome; Thylakoid.
FT   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0000269|PubMed:2164365"
FT   CHAIN           2..248
FT                   /note="Phycobilisome rod-core linker polypeptide CpcG"
FT                   /id="PRO_0000199256"
FT   DOMAIN          11..188
FT                   /note="PBS-linker"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00775"
SQ   SEQUENCE   248 AA;  28511 MW;  EA4C748DB525D064 CRC64;
     MTIPLLQYAP SSQNTRVAGY TVGGDEQPFV FTTDNVISDS DFDVLINAAY RQIFFHAFKC
     DRQQLLESQL RNGQITVRDF IRGLLLSETF IDSFYNKNSN YRFVEQCIQR VLGRDPFSEQ
     EKIAWSIVIC TKGLAAFVDQ LLNTDEYMEN FGYDTVPYQR RRSLASREQG EIPFNIKSPR
     YDAYYRSQLG FPQVVWQNAV RRFRTPDRVP QAGDPALFLN MARSAQIPKV NVRVSAADIS
     LAAVPYRN