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Protein

Allophycocyanin alpha chain

Gene

apcA

Organism
Thermosynechococcus elongatus (strain BP-1)
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)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei81 – 811Phycocyanobilin chromophore (covalent; via 1 link)By similarity

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 alpha chain
Gene namesi
Name:apcA
Ordered Locus Names:tll0957
OrganismiThermosynechococcus elongatus (strain BP-1)
Taxonomic identifieri197221 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaOscillatoriophycideaeChroococcalesThermosynechococcus
Proteomesi
  • UP000000440 Componenti: Chromosome

Subcellular locationi

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Membrane, Phycobilisome, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Initiator methionineiRemovedBy similarity
Chaini2 – 161160Allophycocyanin alpha chainPRO_0000199075Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei71 – 711N4-methylasparagineBy similarity

Post-translational modificationi

Contains one covalently linked phycocyanobilin chromophore.By similarity

Keywords - PTMi

Methylation

Interactioni

Subunit structurei

Heterodimer of an alpha and a beta chain.By similarity

Protein-protein interaction databases

STRINGi197221.tll0957.

Structurei

Secondary structure

1
161
Legend: HelixTurnBeta strand
Show more details
Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Helixi3 – 1311Combined sources
Helixi20 – 3112Combined sources
Helixi33 – 4513Combined sources
Helixi47 – 6115Combined sources
Helixi63 – 653Combined sources
Helixi75 – 9824Combined sources
Helixi102 – 1087Combined sources
Turni109 – 1113Combined sources
Helixi112 – 1198Combined sources
Helixi123 – 14018Combined sources
Helixi143 – 16018Combined sources

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
2V8AX-ray3.50A1-161[»]
3DBJX-ray2.90A/C/E/G1-161[»]
ProteinModelPortaliP50030.
SMRiP50030. Positions 2-161.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP50030.

Family & Domainsi

Sequence similaritiesi

Belongs to the phycobiliprotein family.Curated

Phylogenomic databases

eggNOGiENOG4108MAQ. Bacteria.
ENOG410ZNUD. LUCA.
HOGENOMiHOG000233274.
KOiK02092.
OMAiGGQLFQK.
OrthoDBiPOG091H14WB.

Family and domain databases

Gene3Di1.10.490.20. 1 hit.
InterProiIPR009050. Globin-like.
IPR012128. Phycobilisome_asu/bsu.
[Graphical view]
PfamiPF00502. Phycobilisome. 1 hit.
[Graphical view]
PIRSFiPIRSF000081. Phycocyanin. 1 hit.
SUPFAMiSSF46458. SSF46458. 1 hit.

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

P50030-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSVVTKSIVN ADAEARYLSP GELDRIKNFV STGERRLRIA QTLTENRERI
60 70 80 90 100
VKQAGDQLFQ KRPDVVSPGG NAYGEEMTAT CLRDLDYYLR LVTYGIVAGD
110 120 130 140 150
VTPIEEIGLV GVREMYNSLG TPIPAVAEGI RAMKNVACSL LSAEDAAEAG
160
SYFDFVIGAM Q
Length:161
Mass (Da):17,539
Last modified:January 23, 2007 - v2
Checksum:i45B4B19673CAF820
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
D16540 Genomic DNA. Translation: BAA03976.1.
BA000039 Genomic DNA. Translation: BAC08509.1.
RefSeqiNP_681747.1. NC_004113.1.
WP_011056801.1. NC_004113.1.

Genome annotation databases

EnsemblBacteriaiBAC08509; BAC08509; BAC08509.
GeneIDi1011365.
KEGGitel:tll0957.
PATRICi23927208. VBITheElo119873_1004.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
D16540 Genomic DNA. Translation: BAA03976.1.
BA000039 Genomic DNA. Translation: BAC08509.1.
RefSeqiNP_681747.1. NC_004113.1.
WP_011056801.1. NC_004113.1.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
2V8AX-ray3.50A1-161[»]
3DBJX-ray2.90A/C/E/G1-161[»]
ProteinModelPortaliP50030.
SMRiP50030. Positions 2-161.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi197221.tll0957.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiBAC08509; BAC08509; BAC08509.
GeneIDi1011365.
KEGGitel:tll0957.
PATRICi23927208. VBITheElo119873_1004.

Phylogenomic databases

eggNOGiENOG4108MAQ. Bacteria.
ENOG410ZNUD. LUCA.
HOGENOMiHOG000233274.
KOiK02092.
OMAiGGQLFQK.
OrthoDBiPOG091H14WB.

Miscellaneous databases

EvolutionaryTraceiP50030.

Family and domain databases

Gene3Di1.10.490.20. 1 hit.
InterProiIPR009050. Globin-like.
IPR012128. Phycobilisome_asu/bsu.
[Graphical view]
PfamiPF00502. Phycobilisome. 1 hit.
[Graphical view]
PIRSFiPIRSF000081. Phycocyanin. 1 hit.
SUPFAMiSSF46458. SSF46458. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiPHAA_THEEB
AccessioniPrimary (citable) accession number: P50030
Entry historyi
Integrated into UniProtKB/Swiss-Prot: October 1, 1996
Last sequence update: January 23, 2007
Last modified: September 7, 2016
This is version 94 of the entry and version 2 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Reference proteome

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.