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Protein

Allophycocyanin beta chain

Gene

apcB

Organism
Arthrospira platensis (Spirulina platensis)
Status
Reviewed-Annotation score: Annotation score: 4 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)1

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
OrganismiArthrospira platensis (Spirulina platensis)
Taxonomic identifieri118562 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaOscillatoriophycideaeOscillatorialesMicrocoleaceaeArthrospira

Subcellular locationi

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Membrane, Phycobilisome, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001991021 – 161Allophycocyanin beta chainAdd BLAST161

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei71N4-methylasparagine1 Publication1

Post-translational modificationi

Contains one covalently linked phycocyanobilin chromophore.

Keywords - PTMi

Methylation

Interactioni

Subunit structurei

Heterodimer of an alpha and a beta chain.

Protein-protein interaction databases

MINTiMINT-1509221.
STRINGi696747.NIES39_C04530.

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 – 59Combined sources39
Turni60 – 62Combined sources3
Turni64 – 66Combined sources3
Helixi75 – 98Combined sources24
Helixi102 – 107Combined sources6
Turni108 – 111Combined sources4
Helixi112 – 119Combined sources8
Helixi123 – 159Combined sources37

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1ALLX-ray2.30B1-161[»]
ProteinModelPortaliP72505.
SMRiP72505.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP72505.

Family & Domainsi

Sequence similaritiesi

Belongs to the phycobiliprotein family.Curated

Phylogenomic databases

eggNOGiENOG4105FBM. Bacteria.
ENOG410XR43. LUCA.

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.

P72505-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MQDAITSVIN SSDVQGKYLD RSAIQKLKAY FATGELRVRA ATTISANAAN
60 70 80 90 100
IVKEAVAKSL LYSDITRPGG NMYTTRRYAA CIRDLDYYLR YATYAMLAGD
110 120 130 140 150
PSILDERVLN GLKETYNSLG VPIGATVQAI QAMKEVTAGL VGADAGKEMG
160
IYFDYICSGL S
Length:161
Mass (Da):17,415
Last modified:February 1, 1997 - v1
Checksum:i0B8176CBBF011431
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti21R → A in BAA19986 (Ref. 2) Curated1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X95898 Genomic DNA. Translation: CAA65142.1.
D86179 Genomic DNA. Translation: BAA19986.1.
PIRiS55558.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X95898 Genomic DNA. Translation: CAA65142.1.
D86179 Genomic DNA. Translation: BAA19986.1.
PIRiS55558.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1ALLX-ray2.30B1-161[»]
ProteinModelPortaliP72505.
SMRiP72505.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

MINTiMINT-1509221.
STRINGi696747.NIES39_C04530.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Phylogenomic databases

eggNOGiENOG4105FBM. Bacteria.
ENOG410XR43. LUCA.

Miscellaneous databases

EvolutionaryTraceiP72505.

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_ARTPT
AccessioniPrimary (citable) accession number: P72505
Secondary accession number(s): O06675
Entry historyi
Integrated into UniProtKB/Swiss-Prot: December 15, 1998
Last sequence update: February 1, 1997
Last modified: November 2, 2016
This is version 85 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

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families

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.