ID   PHEG1_GASCO             Reviewed;          71 AA.
AC   Q7M269; Q7M268; Q7M270;
DT   02-SEP-2008, integrated into UniProtKB/Swiss-Prot.
DT   02-SEP-2008, sequence version 2.
DT   03-AUG-2022, entry version 32.
DE   RecName: Full=R-phycoerythrin gamma-1 chain, chloroplastic {ECO:0000250|UniProtKB:P34784, ECO:0000303|PubMed:3886644};
DE   Flags: Fragments;
OS   Gastroclonium coulteri (Red alga).
OC   Eukaryota; Rhodophyta; Florideophyceae; Rhodymeniophycidae; Rhodymeniales;
OC   Champiaceae; Gastroclonium.
OX   NCBI_TaxID=2773;
RN   [1] {ECO:0000305, ECO:0000312|PIR:I22565}
RP   PROTEIN SEQUENCE, SUBUNIT, AND CHROMOPHORE-BINDING.
RX   PubMed=3886644; DOI=10.1016/s0021-9258(18)89150-5;
RA   Klotz A.V., Glazer A.N.;
RT   "Characterization of the bilin attachment sites in R-phycoerythrin.";
RL   J. Biol. Chem. 260:4856-4863(1985).
RN   [2] {ECO:0000305}
RP   BILIN-BINDING.
RX   PubMed=3838747; DOI=10.1016/s0021-9258(18)89151-7;
RA   Nagy J.O., Bishop J.E., Klotz A.V., Glazer A.N., Rapoport H.;
RT   "Bilin attachment sites in the alpha, beta, and gamma subunits of R-
RT   phycoerythrin. Structural studies on singly and doubly linked
RT   phycourobilins.";
RL   J. Biol. Chem. 260:4864-4868(1985).
CC   -!- FUNCTION: Critical for the incorporation of phycoerythrin in the
CC       phycobilisome complex. {ECO:0000250|UniProtKB:P34784}.
CC   -!- SUBUNIT: Heteromer of 6 alpha, 6 beta and 1 gamma chains.
CC       {ECO:0000269|PubMed:3886644}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000250|UniProtKB:P34784}; Peripheral membrane protein
CC       {ECO:0000250|UniProtKB:P34784}; Stromal side
CC       {ECO:0000250|UniProtKB:P34784}. Note=Forms the periphery of the
CC       phycobilisome rod. {ECO:0000250|UniProtKB:P34784}.
CC   -!- PTM: Contains four covalently linked bilin chromophores.
CC       {ECO:0000269|PubMed:3838747, ECO:0000269|PubMed:3886644}.
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   PIR; F22565; F22565.
DR   PIR; G22565; G22565.
DR   PIR; H22565; H22565.
DR   PIR; I22565; I22565.
DR   AlphaFoldDB; Q7M269; -.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0030089; C:phycobilisome; IEA:UniProtKB-KW.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
PE   1: Evidence at protein level;
KW   Antenna complex; Bile pigment; Chloroplast; Chromophore;
KW   Direct protein sequencing; Electron transport; Membrane; Photosynthesis;
KW   Phycobilisome; Plastid; Thylakoid; Transport.
FT   CHAIN           <1..>71
FT                   /note="R-phycoerythrin gamma-1 chain, chloroplastic"
FT                   /id="PRO_0000345637"
FT   BINDING         25
FT                   /ligand="phycourobilin"
FT                   /ligand_id="ChEBI:CHEBI:189062"
FT                   /ligand_label="1"
FT                   /note="covalent, via 1 link"
FT                   /evidence="ECO:0000269|PubMed:3838747,
FT                   ECO:0000269|PubMed:3886644"
FT   BINDING         34
FT                   /ligand="phycourobilin"
FT                   /ligand_id="ChEBI:CHEBI:189062"
FT                   /ligand_label="2"
FT                   /note="covalent, via 1 link"
FT                   /evidence="ECO:0000269|PubMed:3838747,
FT                   ECO:0000269|PubMed:3886644"
FT   BINDING         49
FT                   /ligand="(2R,3E)-phycoerythrobilin"
FT                   /ligand_id="ChEBI:CHEBI:85276"
FT                   /note="covalent, via 1 link"
FT                   /evidence="ECO:0000269|PubMed:3838747,
FT                   ECO:0000269|PubMed:3886644"
FT   BINDING         58
FT                   /ligand="phycourobilin"
FT                   /ligand_id="ChEBI:CHEBI:189062"
FT                   /ligand_label="3"
FT                   /note="covalent, via 1 link"
FT                   /evidence="ECO:0000269|PubMed:3838747,
FT                   ECO:0000269|PubMed:3886644"
FT   NON_CONS        33..34
FT                   /evidence="ECO:0000303|PubMed:3886644"
FT   NON_CONS        46..47
FT                   /evidence="ECO:0000303|PubMed:3886644"
FT   NON_CONS        51..52
FT                   /evidence="ECO:0000303|PubMed:3886644"
FT   NON_TER         1
FT                   /evidence="ECO:0000303|PubMed:3886644"
FT   NON_TER         71
FT                   /evidence="ECO:0000303|PubMed:3886644"
SQ   SEQUENCE   71 AA;  7459 MW;  01684688146EC988 CRC64;
     SGYSGAALDF PVAPSLAGHY SLTNCGQPSG ASKCAEGTVP QAAFEKGTCY RELYASSCHH
     EETQIFQYPA V