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Protein

C-phycocyanin beta chain

Gene

cpcB

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.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei82Phycocyanobilin chromophore 1 (covalent; via 1 link)By similarity1
Binding sitei153Phycocyanobilin chromophore 2 (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:
C-phycocyanin beta chain
Gene namesi
Name:cpcB
Ordered Locus Names:tlr1957
OrganismiThermosynechococcus elongatus (strain BP-1)
Taxonomic identifieri197221 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaSynechococcalesSynechococcaceaeThermosynechococcus
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)DescriptionActionsGraphical viewLength
ChainiPRO_00001991561 – 172C-phycocyanin beta chainAdd BLAST172

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei72N4-methylasparagineBy similarity1

Post-translational modificationi

Contains two covalently linked bilin chromophores.By similarity

Keywords - PTMi

Methylation

Interactioni

Subunit structurei

Heterodimer of an alpha and a beta chain.By similarity

Protein-protein interaction databases

MINTiMINT-260132.
STRINGi197221.tlr1957.

Structurei

Secondary structure

1172
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi4 – 15Combined sources12
Helixi21 – 32Combined sources12
Helixi34 – 46Combined sources13
Helixi48 – 62Combined sources15
Helixi64 – 66Combined sources3
Helixi76 – 99Combined sources24
Helixi103 – 108Combined sources6
Turni109 – 112Combined sources4
Helixi113 – 120Combined sources8
Helixi124 – 142Combined sources19
Beta strandi146 – 148Combined sources3
Helixi154 – 171Combined sources18

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1I7YX-ray2.50B1-172[»]
1JBOX-ray1.45B1-172[»]
1KTPX-ray1.60B1-170[»]
1ON7X-ray2.70B1-172[»]
3L0FX-ray1.35B1-172[»]
4Q70X-ray1.85B1-172[»]
4Z8KX-ray2.50B1-172[»]
4ZIZX-ray1.75B1-172[»]
ProteinModelPortaliP50033.
SMRiP50033.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP50033.

Family & Domainsi

Sequence similaritiesi

Belongs to the phycobiliprotein family.Curated

Phylogenomic databases

eggNOGiENOG4105D6V. Bacteria.
ENOG410XPK8. LUCA.
HOGENOMiHOG000233274.
KOiK02285.
OMAiGDCSALM.
OrthoDBiPOG091H1404.

Family and domain databases

Gene3Di1.10.490.20. 1 hit.
InterProiIPR009050. Globin-like.
IPR012128. Phycobilisome_asu/bsu.
IPR006247. Phycocyanin_b.
[Graphical view]
PfamiPF00502. Phycobilisome. 1 hit.
[Graphical view]
PIRSFiPIRSF000081. Phycocyanin. 1 hit.
SUPFAMiSSF46458. SSF46458. 1 hit.
TIGRFAMsiTIGR01339. phycocy_beta. 1 hit.

Sequencei

Sequence statusi: Complete.

P50033-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MLDAFAKVVA QADARGEFLT NAQFDALSNL VKEGNKRLDA VNRITSNAST
60 70 80 90 100
IVANAARALF AEQPQLIQPG GNAYTNRRMA ACLRDMEIIL RYVTYAILAG
110 120 130 140 150
DSSVLDDRCL NGLRETYQAL GTPGSSVAVA IQKMKDAAIA IANDPNGITP
160 170
GDCSALMSEI AGYFDRAAAA VA
Length:172
Mass (Da):18,187
Last modified:October 1, 1996 - v1
Checksum:i857B54F870800302
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
D13173 Genomic DNA. Translation: BAA02455.1.
BA000039 Genomic DNA. Translation: BAC09509.1.
RefSeqiNP_682747.1. NC_004113.1.
WP_011057792.1. NC_004113.1.

Genome annotation databases

EnsemblBacteriaiBAC09509; BAC09509; BAC09509.
GeneIDi1010252.
KEGGitel:tlr1957.
PATRICi23929318. VBITheElo119873_2047.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
D13173 Genomic DNA. Translation: BAA02455.1.
BA000039 Genomic DNA. Translation: BAC09509.1.
RefSeqiNP_682747.1. NC_004113.1.
WP_011057792.1. NC_004113.1.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1I7YX-ray2.50B1-172[»]
1JBOX-ray1.45B1-172[»]
1KTPX-ray1.60B1-170[»]
1ON7X-ray2.70B1-172[»]
3L0FX-ray1.35B1-172[»]
4Q70X-ray1.85B1-172[»]
4Z8KX-ray2.50B1-172[»]
4ZIZX-ray1.75B1-172[»]
ProteinModelPortaliP50033.
SMRiP50033.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

MINTiMINT-260132.
STRINGi197221.tlr1957.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiBAC09509; BAC09509; BAC09509.
GeneIDi1010252.
KEGGitel:tlr1957.
PATRICi23929318. VBITheElo119873_2047.

Phylogenomic databases

eggNOGiENOG4105D6V. Bacteria.
ENOG410XPK8. LUCA.
HOGENOMiHOG000233274.
KOiK02285.
OMAiGDCSALM.
OrthoDBiPOG091H1404.

Miscellaneous databases

EvolutionaryTraceiP50033.

Family and domain databases

Gene3Di1.10.490.20. 1 hit.
InterProiIPR009050. Globin-like.
IPR012128. Phycobilisome_asu/bsu.
IPR006247. Phycocyanin_b.
[Graphical view]
PfamiPF00502. Phycobilisome. 1 hit.
[Graphical view]
PIRSFiPIRSF000081. Phycocyanin. 1 hit.
SUPFAMiSSF46458. SSF46458. 1 hit.
TIGRFAMsiTIGR01339. phycocy_beta. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiPHCB_THEEB
AccessioniPrimary (citable) accession number: P50033
Entry historyi
Integrated into UniProtKB/Swiss-Prot: October 1, 1996
Last sequence update: October 1, 1996
Last modified: November 2, 2016
This is version 104 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, 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.