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Protein

Cytochrome c2

Gene

cycA

Organism
Rhodobacter capsulatus (strain ATCC BAA-309 / NBRC 16581 / SB1003)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Experimental evidence at protein leveli

Functioni

Cytochrome c2 is found mainly in purple, non-sulfur, photosynthetic bacteria where it functions as the electron donor to the oxidized bacteriochlorophyll in the photophosphorylation pathway. However, it may also have a role in the respiratory chain and is found in some non-photosynthetic bacteria.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei34Heme (covalent)1
Binding sitei37Heme (covalent)1
Metal bindingi38Iron (heme axial ligand)1
Metal bindingi117Iron (heme axial ligand)1

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Biological processi

Electron transport, Photosynthesis, Transport

Keywords - Ligandi

Heme, Iron, Metal-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Cytochrome c2
Gene namesi
Name:cycA
Ordered Locus Names:RCAP_rcc01240
OrganismiRhodobacter capsulatus (strain ATCC BAA-309 / NBRC 16581 / SB1003)
Taxonomic identifieri272942 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaAlphaproteobacteriaRhodobacteralesRhodobacteraceaeRhodobacter
Proteomesi
  • UP000002361 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Signal peptidei1 – 211 PublicationAdd BLAST21
ChainiPRO_000000649722 – 137Cytochrome c21 PublicationAdd BLAST116

Post-translational modificationi

Binds 1 heme group per subunit.

Interactioni

Protein-protein interaction databases

IntActiP00094. 1 interactor.
STRINGi272942.RCAP_rcc01240.

Structurei

Secondary structure

1137
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi24 – 30Combined sources7
Helixi31 – 33Combined sources3
Turni34 – 37Combined sources4
Beta strandi47 – 49Combined sources3
Beta strandi53 – 55Combined sources3
Helixi76 – 83Combined sources8
Helixi90 – 98Combined sources9
Helixi100 – 108Combined sources9
Beta strandi122 – 124Combined sources3
Helixi125 – 134Combined sources10

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1C2NNMR-A1-137[»]
1C2RX-ray2.50A/B22-137[»]
1VYDX-ray2.30A/B22-137[»]
ProteinModelPortaliP00094.
SMRiP00094.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP00094.

Family & Domainsi

Sequence similaritiesi

Belongs to the cytochrome c family.Curated

Keywords - Domaini

Signal

Phylogenomic databases

eggNOGiCOG3474. LUCA.
HOGENOMiHOG000009762.
KOiK08738.
OMAiNKCKSCH.
OrthoDBiPOG091H0FS2.

Family and domain databases

Gene3Di1.10.760.10. 1 hit.
InterProiIPR009056. Cyt_c-like_dom.
[Graphical view]
SUPFAMiSSF46626. SSF46626. 1 hit.
PROSITEiPS51007. CYTC. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

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

P00094-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MKISLTAATV AALVLAAPAF AGDAAKGEKE FNKCKTCHSI IAPDGTEIVK
60 70 80 90 100
GAKTGPNLYG VVGRTAGTYP EFKYKDSIVA LGASGFAWTE EDIATYVKDP
110 120 130
GAFLKEKLDD KKAKTGMAFK LAKGGEDVAA YLASVVK
Length:137
Mass (Da):14,279
Last modified:April 1, 1988 - v1
Checksum:i394E29348E4537CD
GO

Natural variant

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Natural varianti108L → T in strain: 2.3.1. 1
Natural varianti115T → S in strain: 2.3.1. 1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M12776 Genomic DNA. Translation: AAA26102.1.
CP001312 Genomic DNA. Translation: ADE84997.1.
PIRiA25452. CCRF2C.

Genome annotation databases

EnsemblBacteriaiADE84997; ADE84997; RCAP_rcc01240.
KEGGircp:RCAP_rcc01240.
PATRICi35502592. VBIRhoCap134200_1264.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M12776 Genomic DNA. Translation: AAA26102.1.
CP001312 Genomic DNA. Translation: ADE84997.1.
PIRiA25452. CCRF2C.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1C2NNMR-A1-137[»]
1C2RX-ray2.50A/B22-137[»]
1VYDX-ray2.30A/B22-137[»]
ProteinModelPortaliP00094.
SMRiP00094.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

IntActiP00094. 1 interactor.
STRINGi272942.RCAP_rcc01240.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiADE84997; ADE84997; RCAP_rcc01240.
KEGGircp:RCAP_rcc01240.
PATRICi35502592. VBIRhoCap134200_1264.

Phylogenomic databases

eggNOGiCOG3474. LUCA.
HOGENOMiHOG000009762.
KOiK08738.
OMAiNKCKSCH.
OrthoDBiPOG091H0FS2.

Miscellaneous databases

EvolutionaryTraceiP00094.

Family and domain databases

Gene3Di1.10.760.10. 1 hit.
InterProiIPR009056. Cyt_c-like_dom.
[Graphical view]
SUPFAMiSSF46626. SSF46626. 1 hit.
PROSITEiPS51007. CYTC. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiCYC2_RHOCB
AccessioniPrimary (citable) accession number: P00094
Secondary accession number(s): D5ASA6
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 21, 1986
Last sequence update: April 1, 1988
Last modified: November 2, 2016
This is version 117 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, Direct protein sequencing, 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.