PHEA_PORPU
ID PHEA_PORPU Reviewed; 164 AA.
AC P51368;
DT 01-OCT-1996, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-1996, sequence version 1.
DT 03-AUG-2022, entry version 78.
DE RecName: Full=R-phycoerythrin alpha chain;
GN Name=cpeA;
OS Porphyra purpurea (Red seaweed) (Ulva purpurea).
OG Plastid; Chloroplast.
OC Eukaryota; Rhodophyta; Bangiophyceae; Bangiales; Bangiaceae; Porphyra.
OX NCBI_TaxID=2787;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Avonport;
RA Reith M.E., Munholland J.;
RT "Complete nucleotide sequence of the Porphyra purpurea chloroplast
RT genome.";
RL Plant Mol. Biol. Rep. 13:333-335(1995).
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; U38804; AAC08254.1; -; Genomic_DNA.
DR PIR; S73289; S73289.
DR RefSeq; NP_053978.1; NC_000925.1.
DR AlphaFoldDB; P51368; -.
DR SMR; P51368; -.
DR GeneID; 810008; -.
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_0000199177"
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; 17698 MW; 823E10F912074C5D CRC64;
MKSVITTTIS AADAAGRFPS SSDLESVQGN IQRAAARLEA AEKLASNHEA VVKEAGDACF
AKYSYLKNPG EAGDSQEKVN KCYRDVDHYM RLVNYCLVVG GTGPVDEWGI AGAREVYRTL
NLPTSAYVAS FAFARDRLCV PRDMSAQAGV EYAGNLDYII NSLC