APCF_CYACA
ID APCF_CYACA Reviewed; 170 AA.
AC O19896;
DT 20-JUN-2001, integrated into UniProtKB/Swiss-Prot.
DT 01-JAN-1998, sequence version 1.
DT 03-AUG-2022, entry version 87.
DE RecName: Full=Allophycocyanin subunit beta-18;
DE Short=Allophycocyanin subunit B18;
GN Name=apcF;
OS Cyanidium caldarium (Red alga).
OG Plastid; Chloroplast.
OC Eukaryota; Rhodophyta; Bangiophyceae; Cyanidiales; Cyanidiaceae; Cyanidium.
OX NCBI_TaxID=2771;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=RK-1;
RX PubMed=11040290; DOI=10.1007/s002390010101;
RA Gloeckner G., Rosenthal A., Valentin K.-U.;
RT "The structure and gene repertoire of an ancient red algal plastid
RT genome.";
RL J. Mol. Evol. 51:382-390(2000).
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. {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC {ECO:0000250}; Peripheral membrane protein {ECO:0000250}; Stromal side
CC {ECO:0000250}. Note=Forms the core of the phycobilisome. {ECO:0000250}.
CC -!- PTM: Contains one covalently linked bilin chromophore. {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the phycobiliprotein family. {ECO:0000305}.
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 EMBL; AF022186; AAB82693.1; -; Genomic_DNA.
DR PIR; T11964; T11964.
DR RefSeq; NP_045068.1; NC_001840.1.
DR AlphaFoldDB; O19896; -.
DR SMR; O19896; -.
DR GeneID; 800191; -.
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; IPR006245; ApcB.
DR InterPro; IPR009050; Globin-like_sf.
DR InterPro; IPR012128; Phycobilisome_asu/bsu.
DR InterPro; IPR038719; Phycobilisome_asu/bsu_sf.
DR PANTHER; PTHR34011:SF3; PTHR34011:SF3; 1.
DR Pfam; PF00502; Phycobilisome; 1.
DR PIRSF; PIRSF000081; Phycocyanin; 1.
DR SUPFAM; SSF46458; SSF46458; 1.
DR TIGRFAMs; TIGR01337; apcB; 1.
PE 3: Inferred from homology;
KW Antenna complex; Bile pigment; Chloroplast; Chromophore;
KW Electron transport; Membrane; Methylation; Photosynthesis; Phycobilisome;
KW Plastid; Thylakoid; Transport.
FT CHAIN 1..170
FT /note="Allophycocyanin subunit beta-18"
FT /id="PRO_0000199090"
FT BINDING 84
FT /ligand="(2R,3E)-phycocyanobilin"
FT /ligand_id="ChEBI:CHEBI:85275"
FT /note="covalent, via 1 link"
FT /evidence="ECO:0000250"
FT MOD_RES 74
FT /note="N4-methylasparagine"
FT /evidence="ECO:0000250"
SQ SEQUENCE 170 AA; 19231 MW; 24914859DC69B1B5 CRC64;
MQLQDSIVNI ISTYDNAGKY LDSNAITNIK KYFDTADTRL GIVKIINANS SLIIQQASSQ
LFERNPELIR PSGNAYTTRR YAACLRDIDY YLRYASYSIV ANDTSVLSSR VLAGLKDTYN
SLGVPLASIV TLLELLKELI KEKTKNINDA HKYIDEPFLY MMKILCENDV