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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)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei82 – 821Phycocyanobilin chromophore 1 (covalent; via 1 link)By similarity
Binding sitei153 – 1531Phycocyanobilin chromophore 2 (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:
C-phycocyanin beta chain
Gene namesi
Name:cpcB
Ordered Locus Names:tlr1957
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
Chaini1 – 172172C-phycocyanin beta chainPRO_0000199156Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei72 – 721N4-methylasparagineBy similarity

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

1
172
Legend: HelixTurnBeta strand
Show more details
Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Helixi4 – 1512Combined sources
Helixi21 – 3212Combined sources
Helixi34 – 4613Combined sources
Helixi48 – 6215Combined sources
Helixi64 – 663Combined sources
Helixi76 – 9924Combined sources
Helixi103 – 1086Combined sources
Turni109 – 1124Combined sources
Helixi113 – 1208Combined sources
Helixi124 – 14219Combined sources
Beta strandi146 – 1483Combined sources
Helixi154 – 17118Combined sources

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
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.
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
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.
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: September 7, 2016
This is version 103 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.