APCD_SYNP6
ID APCD_SYNP6 Reviewed; 163 AA.
AC P11390; Q5N2K7;
DT 01-JUL-1989, integrated into UniProtKB/Swiss-Prot.
DT 23-JAN-2007, sequence version 3.
DT 03-AUG-2022, entry version 133.
DE RecName: Full=Allophycocyanin alpha-B chain;
GN OrderedLocusNames=syc1273_d;
OS Synechococcus sp. (strain ATCC 27144 / PCC 6301 / SAUG 1402/1) (Anacystis
OS nidulans).
OC Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus.
OX NCBI_TaxID=269084;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 27144 / PCC 6301 / SAUG 1402/1;
RX PubMed=17211581; DOI=10.1007/s11120-006-9122-4;
RA Sugita C., Ogata K., Shikata M., Jikuya H., Takano J., Furumichi M.,
RA Kanehisa M., Omata T., Sugiura M., Sugita M.;
RT "Complete nucleotide sequence of the freshwater unicellular cyanobacterium
RT Synechococcus elongatus PCC 6301 chromosome: gene content and
RT organization.";
RL Photosyn. Res. 93:55-67(2007).
RN [2]
RP PROTEIN SEQUENCE OF 2-163.
RA Suter F., Fueglistaller P., Lundell D.J., Glazer A.N., Zuber H.;
RT "Amino acid sequences of alpha-allophycocyanin B from Synechococcus 6301
RT and Mastigocladus laminosus.";
RL FEBS Lett. 217:279-282(1987).
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: Cellular thylakoid membrane; Peripheral membrane
CC protein; Cytoplasmic side. Note=Forms the core of the phycobilisome.
CC -!- PTM: Contains one covalently linked bilin chromophore.
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; AP008231; BAD79463.1; -; Genomic_DNA.
DR PIR; A27398; A27398.
DR RefSeq; WP_011243585.1; NC_006576.1.
DR AlphaFoldDB; P11390; -.
DR SMR; P11390; -.
DR STRING; 269084.syc1273_d; -.
DR PRIDE; P11390; -.
DR EnsemblBacteria; BAD79463; BAD79463; syc1273_d.
DR KEGG; syc:syc1273_d; -.
DR eggNOG; ENOG502Z81S; Bacteria.
DR OMA; LIGVREM; -.
DR Proteomes; UP000001175; Chromosome.
DR GO; GO:0030089; C:phycobilisome; IEA:UniProtKB-KW.
DR GO; GO:0031676; C:plasma membrane-derived thylakoid membrane; IEA:UniProtKB-SubCell.
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; Chromophore; Direct protein sequencing;
KW Electron transport; Membrane; Methylation; Photosynthesis; Phycobilisome;
KW Thylakoid; Transport.
FT INIT_MET 1
FT /note="Removed"
FT /evidence="ECO:0000269|Ref.2"
FT CHAIN 2..163
FT /note="Allophycocyanin alpha-B chain"
FT /id="PRO_0000199077"
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 78..80
FT /note="RAQ -> EAQRG (in Ref. 2; AA sequence)"
FT /evidence="ECO:0000305"
FT CONFLICT 85..86
FT /note="YG -> GD (in Ref. 2; AA sequence)"
FT /evidence="ECO:0000305"
FT CONFLICT 162..163
FT /note="Missing (in Ref. 2; AA sequence)"
FT /evidence="ECO:0000305"
SQ SEQUENCE 163 AA; 18130 MW; 59C356AE21D90E1C CRC64;
MTIVSQVILK ADDELRYPSG GELKNITDFF KTGEQRLRIA QVLSDSEKKI VDQASRKLWQ
RRPDFIAPGG NAYGQRQRAQ CLRDYGWYLR LITYGVLAGD KEPIESIGLL GAREMYNSLG
VPLPGMAEAI RTLKEASLAL LSSADATVAA PYFDFLIQGM ETI
