PHAA_GALSU
ID PHAA_GALSU Reviewed; 161 AA.
AC P00314; P35909;
DT 21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-1994, sequence version 3.
DT 03-AUG-2022, entry version 99.
DE RecName: Full=Allophycocyanin alpha chain;
GN Name=apcA;
OS Galdieria sulphuraria (Red alga).
OG Plastid; Chloroplast.
OC Eukaryota; Rhodophyta; Bangiophyceae; Cyanidiales; Cyanidiaceae; Galdieria.
OX NCBI_TaxID=130081;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=14-1-1 / Isolate 107.79/Goettingen;
RA Kostrzewa M., Zetsche K.;
RL Submitted (AUG-1993) to the EMBL/GenBank/DDBJ databases.
RN [2]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=III-D-2;
RX PubMed=8165249; DOI=10.1104/pp.104.3.1085;
RA Liu B., Troxler R.F.;
RT "The allophycocyanin alpha subunit gene from Cyanidium caldarium.";
RL Plant Physiol. 104:1085-1086(1994).
RN [3]
RP PROTEIN SEQUENCE.
RX PubMed=6885776; DOI=10.1016/s0021-9258(17)44587-x;
RA Offner G.D., Troxler R.F.;
RT "Primary structure of allophycocyanin from the unicellular rhodophyte,
RT Cyanidium caldarium. The complete amino acid sequences of the alpha and
RT beta subunits.";
RL J. Biol. Chem. 258:9931-9940(1983).
CC -!- FUNCTION: Light-harvesting photosynthetic bile pigment-protein from the
CC phycobiliprotein complex. Allophycocyanin has a maximum absorption at
CC approximately 650 nanometers.
CC -!- SUBUNIT: Heterodimer of an alpha and a beta chain.
CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane;
CC Peripheral membrane protein; Stromal side. Note=Forms the core of the
CC phycobilisome.
CC -!- PTM: Contains one covalently linked phycocyanobilin chromophore.
CC -!- MISCELLANEOUS: Although originally identified as Cyanidium caldarium,
CC these sequences derive from Galdieria sulphuraria. {ECO:0000305}.
CC -!- SIMILARITY: Belongs to the phycobiliprotein family. {ECO:0000305}.
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DR EMBL; X74548; CAA52641.1; -; Genomic_DNA.
DR EMBL; L25349; AAA20110.1; -; Genomic_DNA.
DR AlphaFoldDB; P00314; -.
DR SMR; P00314; -.
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 1: Evidence at protein level;
KW Antenna complex; Bile pigment; Chloroplast; Chromophore;
KW Direct protein sequencing; Electron transport; Membrane; Methylation;
KW Photosynthesis; Phycobilisome; Plastid; Thylakoid; Transport.
FT CHAIN 1..161
FT /note="Allophycocyanin alpha chain"
FT /id="PRO_0000199083"
FT BINDING 81
FT /ligand="(2R,3E)-phycocyanobilin"
FT /ligand_id="ChEBI:CHEBI:85275"
FT /note="covalent, via 1 link"
FT MOD_RES 71
FT /note="N4-methylasparagine"
FT /evidence="ECO:0000250"
FT CONFLICT 2
FT /note="Missing (in Ref. 3; AA sequence)"
FT /evidence="ECO:0000305"
FT CONFLICT 8
FT /note="I -> T (in Ref. 2; AAA20110)"
FT /evidence="ECO:0000305"
FT CONFLICT 131
FT /note="K -> D (in Ref. 3; AA sequence)"
FT /evidence="ECO:0000305"
FT CONFLICT 146
FT /note="S -> R (in Ref. 3; AA sequence)"
FT /evidence="ECO:0000305"
FT CONFLICT 156..161
FT /note="TIGAMQ -> KLPASS (in Ref. 3; AA sequence)"
FT /evidence="ECO:0000305"
SQ SEQUENCE 161 AA; 17532 MW; 00A5C2A6AC9A8756 CRC64;
MSIVTKSIVN ADAEARYLSP GELDRIKSFV LSGQRRLRIA QILTDNRERI VKQAGQQLFQ
QRPDIVSPGG NAYGEEMTAT CLRDLDYYLR LVTYGVVAGD IAPIEEIGLV GVKEMYNSLG
TPISAVAEGI KAMKNVACSL LSGDDSAEAG FYFDYTIGAM Q
