APCB_AGLNE
ID APCB_AGLNE Reviewed; 161 AA.
AC P28556;
DT 01-DEC-1992, integrated into UniProtKB/Swiss-Prot.
DT 01-DEC-1992, sequence version 1.
DT 03-AUG-2022, entry version 91.
DE RecName: Full=Allophycocyanin beta chain;
GN Name=apcB;
OS Aglaothamnion neglectum (Red alga).
OG Plastid; Chloroplast.
OC Eukaryota; Rhodophyta; Florideophyceae; Rhodymeniophycidae; Ceramiales;
OC Callithamniaceae; Aglaothamnion.
OX NCBI_TaxID=2765;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=7678762; DOI=10.1007/bf00039615;
RA Apt K.E., Grossman A.R.;
RT "Characterization and transcript analysis of the major phycobiliprotein
RT subunit genes from Aglaothamnion neglectum (Rhodophyta).";
RL Plant Mol. Biol. 21:27-38(1993).
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 phycocyanobilin chromophore.
CC {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the phycobiliprotein family. {ECO:0000305}.
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DR EMBL; Z11905; CAA77959.1; -; Genomic_DNA.
DR PIR; S30938; S30938.
DR AlphaFoldDB; P28556; -.
DR SMR; P28556; -.
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 CDD; cd12126; APC_beta; 1.
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..161
FT /note="Allophycocyanin beta chain"
FT /id="PRO_0000199087"
FT BINDING 81
FT /ligand="(2R,3E)-phycocyanobilin"
FT /ligand_id="ChEBI:CHEBI:85275"
FT /note="covalent, via 1 link"
FT /evidence="ECO:0000250"
FT MOD_RES 71
FT /note="N4-methylasparagine"
FT /evidence="ECO:0000250"
SQ SEQUENCE 161 AA; 17335 MW; 9E534B002279C468 CRC64;
MQDAITSVIN TADVQGKYLD DSSLNKLKGY FATGELRVRA AATIAANAAN IIKESVAKAL
LYSDITRPGG NMYTTRRFAA CIRDLDYYLR LATYGMLAGD PSILDERVLD GLKETYNSLG
VPIGATIQAI QAMKEVTSGL LGVDAGQEMA LYFDYICSGL S