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Protein

Allophycocyanin beta chain

Gene

apcB

Organism
Synechocystis sp. (strain PCC 6803 / Kazusa)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Experimental evidence at protein leveli

Functioni

Light-harvesting photosynthetic bile pigment-protein from the phycobiliprotein complex. Allophycocyanin has a maximum absorption at approximately 650 nanometers.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei81Phycocyanobilin chromophore (covalent; via 1 link)By similarity1

GO - Biological processi

Complete GO annotation...

Keywords - Biological processi

Electron transport, Photosynthesis, Transport

Keywords - Ligandi

Bile pigment, Chromophore

Names & Taxonomyi

Protein namesi
Recommended name:
Allophycocyanin beta chain
Gene namesi
Name:apcB
Ordered Locus Names:slr1986
OrganismiSynechocystis sp. (strain PCC 6803 / Kazusa)
Taxonomic identifieri1111708 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaSynechococcalesMerismopediaceaeSynechocystis
Proteomesi
  • UP000001425 Componenti: Chromosome

Subcellular locationi

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Membrane, Phycobilisome, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001991051 – 161Allophycocyanin beta chainAdd BLAST161

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei71N4-methylasparagineBy similarity1

Post-translational modificationi

Contains one covalently linked phycocyanobilin chromophore.By similarity

Keywords - PTMi

Methylation

Proteomic databases

PRIDEiQ01952.

Interactioni

Subunit structurei

Heterodimer of an alpha and a beta chain.By similarity

Protein-protein interaction databases

IntActiQ01952. 2 interactors.

Structurei

Secondary structure

1161
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi4 – 13Combined sources10
Turni14 – 16Combined sources3
Helixi21 – 32Combined sources12
Helixi34 – 59Combined sources26
Turni60 – 62Combined sources3
Helixi64 – 66Combined sources3
Helixi75 – 98Combined sources24
Helixi102 – 107Combined sources6
Helixi112 – 119Combined sources8
Helixi123 – 141Combined sources19
Helixi143 – 160Combined sources18

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
4PO5X-ray1.75B/D/F1-161[»]
ProteinModelPortaliQ01952.
SMRiQ01952.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the phycobiliprotein family.Curated

Phylogenomic databases

HOGENOMiHOG000233274.
InParanoidiQ01952.
KOiK02093.
OMAiYFDYISS.
PhylomeDBiQ01952.

Family and domain databases

CDDicd12126. APC_beta. 1 hit.
Gene3Di1.10.490.20. 1 hit.
InterProiIPR006245. ApcB.
IPR009050. Globin-like.
IPR012128. Phycobilisome_asu/bsu.
[Graphical view]
PfamiPF00502. Phycobilisome. 1 hit.
[Graphical view]
PIRSFiPIRSF000081. Phycocyanin. 1 hit.
SUPFAMiSSF46458. SSF46458. 1 hit.
TIGRFAMsiTIGR01337. apcB. 1 hit.

Sequencei

Sequence statusi: Complete.

Q01952-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MQDAITAVIN SADVQGKYLD GAAMDKLKSY FASGELRVRA ASVISANAAT
60 70 80 90 100
IVKEAVAKSL LYSDVTRPGG NMYTTRRYAA CIRDLDYYLR YATYAMLAGD
110 120 130 140 150
ASILDERVLN GLKETYNSLG VPISSTVQAI QAIKEVTASL VGADAGKEMG
160
VYLDYICSGL S
Length:161
Mass (Da):17,216
Last modified:April 1, 1993 - v1
Checksum:i63F01E5903BA1B83
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M77135 Genomic DNA. Translation: AAA27277.1.
BA000022 Genomic DNA. Translation: BAA17875.1.
PIRiB44462.

Genome annotation databases

EnsemblBacteriaiBAA17875; BAA17875; BAA17875.
KEGGisyn:slr1986.
PATRICi23839713. VBISynSp132158_1418.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M77135 Genomic DNA. Translation: AAA27277.1.
BA000022 Genomic DNA. Translation: BAA17875.1.
PIRiB44462.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
4PO5X-ray1.75B/D/F1-161[»]
ProteinModelPortaliQ01952.
SMRiQ01952.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

IntActiQ01952. 2 interactors.

Proteomic databases

PRIDEiQ01952.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiBAA17875; BAA17875; BAA17875.
KEGGisyn:slr1986.
PATRICi23839713. VBISynSp132158_1418.

Phylogenomic databases

HOGENOMiHOG000233274.
InParanoidiQ01952.
KOiK02093.
OMAiYFDYISS.
PhylomeDBiQ01952.

Family and domain databases

CDDicd12126. APC_beta. 1 hit.
Gene3Di1.10.490.20. 1 hit.
InterProiIPR006245. ApcB.
IPR009050. Globin-like.
IPR012128. Phycobilisome_asu/bsu.
[Graphical view]
PfamiPF00502. Phycobilisome. 1 hit.
[Graphical view]
PIRSFiPIRSF000081. Phycocyanin. 1 hit.
SUPFAMiSSF46458. SSF46458. 1 hit.
TIGRFAMsiTIGR01337. apcB. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiPHAB_SYNY3
AccessioniPrimary (citable) accession number: Q01952
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 1, 1993
Last sequence update: April 1, 1993
Last modified: November 2, 2016
This is version 114 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families
  3. Synechocystis PCC 6803
    Synechocystis (strain PCC 6803): entries and gene names

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.