ID   PYR5_PSETP              Reviewed;          72 AA.
AC   Q52453;
DT   01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1997, sequence version 1.
DT   25-MAY-2022, entry version 53.
DE   RecName: Full=Phycobilisome 37.5 kDa linker polypeptide, phycocyanin-associated, rod;
DE            Short=L-37.5/R;
DE   Flags: Fragment;
GN   Name=cpcH2;
OS   Pseudanabaena tenuis (strain PCC 7409).
OC   Bacteria; Cyanobacteria; Pseudanabaenales; Pseudanabaenaceae;
OC   Pseudanabaena.
OX   NCBI_TaxID=29415;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Dubbs J.M., Bryant D.A.;
RT   "Organization and transcription of the genes encoding two differentially
RT   expressed phycocyanins in the cyanobacterium Pseudanabaena sp. PCC 7409.";
RL   Submitted (AUG-1992) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Rod linker protein, associated with phycocyanin. Linker
CC       polypeptides determine the state of aggregation and the location of the
CC       disk-shaped phycobiliprotein units within the phycobilisome and
CC       modulate their spectroscopic properties in order to mediate a directed
CC       and optimal energy transfer (By similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000250};
CC       Peripheral membrane protein {ECO:0000250}; Cytoplasmic side
CC       {ECO:0000250}. Note=Associated with phycocyanin. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the phycobilisome linker protein family.
CC       {ECO:0000255|PROSITE-ProRule:PRU00775}.
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DR   EMBL; M99427; AAA26045.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q52453; -.
DR   SMR; Q52453; -.
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   Pfam; PF00427; PBS_linker_poly; 1.
DR   PROSITE; PS51445; PBS_LINKER; 1.
PE   3: Inferred from homology;
KW   Antenna complex; Membrane; Photosynthesis; Phycobilisome; Thylakoid.
FT   CHAIN           1..>72
FT                   /note="Phycobilisome 37.5 kDa linker polypeptide,
FT                   phycocyanin-associated, rod"
FT                   /id="PRO_0000199218"
FT   DOMAIN          1..72
FT                   /note="PBS-linker"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00775"
FT   NON_TER         72
SQ   SEQUENCE   72 AA;  7877 MW;  8AD469029BD023EF CRC64;
     MTSSAAAIRL GFEPFVNASP VELRTNWSDS DVQAVISATY RQVFGNEHLM LSERLTSAES
     LLASGNISVR EF