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Protein

C-phycocyanin-1 alpha chain

Gene

cpcA1

Organism
Microchaete diplosiphon (Fremyella diplosiphon)
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.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei84 – 841Phycocyanobilin chromophore (covalent; via 1 link)

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-1 alpha chain
Gene namesi
Name:cpcA1
OrganismiMicrochaete diplosiphon (Fremyella diplosiphon)
Taxonomic identifieri1197 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaNostocalesMicrochaetaceaeMicrochaete

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 – 162162C-phycocyanin-1 alpha chainPRO_0000199113Add
BLAST

Post-translational modificationi

Contains one covalently linked bilin chromophore.

Expressioni

Inductioni

Phycocyanin-1 is expressed at similar levels in green and red light (constitutive phycocyanin).

Interactioni

Subunit structurei

Heterodimer of an alpha and a beta chain.

Structurei

Secondary structure

1
162
Legend: HelixTurnBeta strand
Show more details
Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Helixi4 – 1411Combined sources
Helixi21 – 4626Combined sources
Helixi48 – 6215Combined sources
Helixi65 – 684Combined sources
Beta strandi74 – 774Combined sources
Helixi78 – 10124Combined sources
Helixi105 – 1106Combined sources
Turni111 – 1144Combined sources
Helixi115 – 1228Combined sources
Helixi126 – 13914Combined sources
Helixi144 – 16017Combined sources

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
1CPCX-ray1.66A/K1-162[»]
ProteinModelPortaliP07122.
SMRiP07122. Positions 1-162.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP07122.

Family & Domainsi

Sequence similaritiesi

Belongs to the phycobiliprotein family.Curated

Family and domain databases

Gene3Di1.10.490.20. 1 hit.
InterProiIPR009050. Globin-like.
IPR012128. Phycobilisome_asu/bsu.
IPR006246. Phycocyanin_a.
[Graphical view]
PfamiPF00502. Phycobilisome. 1 hit.
[Graphical view]
PIRSFiPIRSF000081. Phycocyanin. 1 hit.
SUPFAMiSSF46458. SSF46458. 1 hit.
TIGRFAMsiTIGR01338. phycocy_alpha. 1 hit.

Sequencei

Sequence statusi: Complete.

P07122-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MKTPLTEAVA AADSQGRFLS STEIQTAFGR FRQASASLAA AKALTEKASS
60 70 80 90 100
LASGAANAVY SKFPYTTSQN GPNFASTQTG KDKCVRDIGY YLRMVTYCLV
110 120 130 140 150
VGGTGPLDDY LIGGIAEINR TFDLSPSWYV EALKYIKANH GLSGDPAVEA
160
NSYIDYAINA LS
Length:162
Mass (Da):17,228
Last modified:April 1, 1988 - v1
Checksum:i35D2745AD38B4FFD
GO

Experimental Info

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Sequence conflicti13 – 131D → H in CAA30065 (PubMed:3127591).Curated
Sequence conflicti17 – 171R → A in CAA30065 (PubMed:3127591).Curated
Sequence conflicti67 – 671Missing in CAA30065 (PubMed:3127591).Curated
Sequence conflicti101 – 1011Missing in CAA30065 (PubMed:3127591).Curated

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X06084 Genomic DNA. Translation: CAA29465.1.
X07013 Genomic DNA. Translation: CAA30065.1.
M13218 Genomic DNA. Translation: AAA24879.1.
PIRiS00714.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X06084 Genomic DNA. Translation: CAA29465.1.
X07013 Genomic DNA. Translation: CAA30065.1.
M13218 Genomic DNA. Translation: AAA24879.1.
PIRiS00714.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
1CPCX-ray1.66A/K1-162[»]
ProteinModelPortaliP07122.
SMRiP07122. Positions 1-162.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Miscellaneous databases

EvolutionaryTraceiP07122.

Family and domain databases

Gene3Di1.10.490.20. 1 hit.
InterProiIPR009050. Globin-like.
IPR012128. Phycobilisome_asu/bsu.
IPR006246. Phycocyanin_a.
[Graphical view]
PfamiPF00502. Phycobilisome. 1 hit.
[Graphical view]
PIRSFiPIRSF000081. Phycocyanin. 1 hit.
SUPFAMiSSF46458. SSF46458. 1 hit.
TIGRFAMsiTIGR01338. phycocy_alpha. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiPHCA1_MICDP
AccessioniPrimary (citable) accession number: P07122
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 1, 1988
Last sequence update: April 1, 1988
Last modified: December 9, 2015
This is version 96 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.