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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)DescriptionActionsGraphical viewLength
Binding sitei84Phycocyanobilin 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:
C-phycocyanin-1 alpha chain
Gene namesi
Name:cpcA1
OrganismiMicrochaete diplosiphon (Fremyella diplosiphon)
Taxonomic identifieri1197 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaNostocalesRivulariaceaeMicrochaete

Subcellular locationi

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Membrane, Phycobilisome, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001991131 – 162C-phycocyanin-1 alpha chainAdd BLAST162

Post-translational modificationi

Contains one covalently linked bilin chromophore.

Proteomic databases

PRIDEiP07122.

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

1162
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi4 – 14Combined sources11
Helixi21 – 46Combined sources26
Helixi48 – 62Combined sources15
Helixi65 – 68Combined sources4
Beta strandi74 – 77Combined sources4
Helixi78 – 101Combined sources24
Helixi105 – 110Combined sources6
Turni111 – 114Combined sources4
Helixi115 – 122Combined sources8
Helixi126 – 139Combined sources14
Helixi144 – 160Combined sources17

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1CPCX-ray1.66A/K1-162[»]
ProteinModelPortaliP07122.
SMRiP07122.
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)DescriptionActionsGraphical viewLength
Sequence conflicti13D → H in CAA30065 (PubMed:3127591).Curated1
Sequence conflicti17R → A in CAA30065 (PubMed:3127591).Curated1
Sequence conflicti67Missing in CAA30065 (PubMed:3127591).Curated1
Sequence conflicti101Missing in CAA30065 (PubMed:3127591).Curated1

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
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1CPCX-ray1.66A/K1-162[»]
ProteinModelPortaliP07122.
SMRiP07122.
ModBaseiSearch...
MobiDBiSearch...

Proteomic databases

PRIDEiP07122.

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: November 2, 2016
This is version 98 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.