ID   PHEA_NEOHI              Reviewed;         164 AA.
AC   Q0ZHI7;
DT   06-FEB-2007, integrated into UniProtKB/Swiss-Prot.
DT   22-AUG-2006, sequence version 1.
DT   03-AUG-2022, entry version 45.
DE   RecName: Full=R-phycoerythrin alpha chain;
GN   Name=cpeA;
OS   Neoporphyra haitanensis (Red seaweed) (Porphyra haitanensis).
OG   Plastid; Chloroplast.
OC   Eukaryota; Rhodophyta; Bangiophyceae; Bangiales; Bangiaceae; Neoporphyra.
OX   NCBI_TaxID=1262161;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Zuo Z.-H., Yan G.-L., Xu S.-Y., Chen Y.-X.;
RT   "Cloning and sequence analysis of phycoerythrin gene of Porphyra
RT   haitanensis.";
RL   Submitted (MAR-2006) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Light-harvesting photosynthetic bile pigment-protein from the
CC       phycobiliprotein complex. {ECO:0000250}.
CC   -!- SUBUNIT: Heterodimer of an alpha and a beta chain.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000250}; Peripheral membrane protein {ECO:0000250}; Stromal side
CC       {ECO:0000250}. Note=Forms the periphery of the phycobilisome rod.
CC       {ECO:0000250}.
CC   -!- PTM: Contains two covalently linked bilin chromophores. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the phycobiliprotein family. {ECO:0000305}.
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DR   EMBL; DQ449070; ABE27594.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q0ZHI7; -.
DR   SMR; Q0ZHI7; -.
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.
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; Chloroplast; Chromophore;
KW   Electron transport; Membrane; Photosynthesis; Phycobilisome; Plastid;
KW   Thylakoid; Transport.
FT   CHAIN           1..164
FT                   /note="R-phycoerythrin alpha chain"
FT                   /id="PRO_0000277337"
FT   BINDING         82
FT                   /ligand="(2R,3E)-phycoerythrobilin"
FT                   /ligand_id="ChEBI:CHEBI:85276"
FT                   /ligand_label="1"
FT                   /note="covalent, via 1 link"
FT                   /evidence="ECO:0000250"
FT   BINDING         139
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"
SQ   SEQUENCE   164 AA;  17682 MW;  823E089912003C5D CRC64;
     MKSVITTTIS AADAAGRFPS SSDLESVQGN IQRAAARLEA AEKLASNHEA VVKEAGDACF
     AKYSYLKNPG EAGDSQEKVN KCYRDVDHYM RLVNYCLVVG GTGPVDEWGI AGAREVYRTL
     NLPTSAYVAS FAFARDRLCV PRDMSAQAGV EYAGNLDYLI NALC