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Protein

Cytidine deaminase

Gene

cdd

Organism
Escherichia coli (strain K12 / DH10B)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

This enzyme scavenges exogenous and endogenous cytidine and 2'-deoxycytidine for UMP synthesis.UniRule annotation

Catalytic activityi

Cytidine + H2O = uridine + NH3.UniRule annotation
2'deoxycytidine + H2O = 2'-deoxyuridine + NH3.UniRule annotation

Cofactori

Zn2+UniRule annotationNote: Binds 1 zinc ion.UniRule annotation

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Metal bindingi102Zinc; catalyticUniRule annotation1
Active sitei104Proton donorUniRule annotation1
Metal bindingi129Zinc; catalyticUniRule annotation1
Metal bindingi132Zinc; catalyticUniRule annotation1

GO - Molecular functioni

Keywordsi

Molecular functionHydrolase
LigandMetal-binding, Zinc

Names & Taxonomyi

Protein namesi
Recommended name:
Cytidine deaminaseUniRule annotation (EC:3.5.4.5UniRule annotation)
Alternative name(s):
Cytidine aminohydrolaseUniRule annotation
Short name:
CDAUniRule annotation
Gene namesi
Name:cddUniRule annotation
Ordered Locus Names:ECDH10B_2300
OrganismiEscherichia coli (strain K12 / DH10B)
Taxonomic identifieri316385 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeEscherichia

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_10001470991 – 294Cytidine deaminaseAdd BLAST294

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliB1X7N2.
SMRiB1X7N2.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini48 – 168CMP/dCMP-type deaminase 1PROSITE-ProRule annotationAdd BLAST121
Domaini186 – 294CMP/dCMP-type deaminase 2PROSITE-ProRule annotationAdd BLAST109

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni89 – 91Substrate bindingUniRule annotation3

Sequence similaritiesi

Belongs to the cytidine and deoxycytidylate deaminase family.UniRule annotation

Phylogenomic databases

eggNOGiENOG4107T42. Bacteria.
COG0295. LUCA.
HOGENOMiHOG000218617.
KOiK01489.
OMAiGHIDAQQ.

Family and domain databases

HAMAPiMF_01558. Cyt_deam. 1 hit.
InterProiView protein in InterPro
IPR016192. APOBEC/CMP_deaminase_Zn-bd.
IPR002125. CMP_dCMP_dom.
IPR013171. Cyd/dCyd_deaminase_Zn-bd.
IPR006263. Cyt_deam_dimer.
IPR016193. Cytidine_deaminase-like.
IPR020797. Cytidine_deaminase_bacteria.
PfamiView protein in Pfam
PF00383. dCMP_cyt_deam_1. 1 hit.
PF08211. dCMP_cyt_deam_2. 1 hit.
SUPFAMiSSF53927. SSF53927. 2 hits.
TIGRFAMsiTIGR01355. cyt_deam_dimer. 1 hit.
PROSITEiView protein in PROSITE
PS00903. CYT_DCMP_DEAMINASES_1. 1 hit.
PS51747. CYT_DCMP_DEAMINASES_2. 2 hits.

Sequencei

Sequence statusi: Complete.

B1X7N2-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MHPRFQTAFA QLADNLQSAL EPILADKYFP ALLTGEQVSS LKSATGLDED
60 70 80 90 100
ALAFALLPLA AACARTPLSN FNVGAIARGV SGTWYFGANM EFIGATMQQT
110 120 130 140 150
VHAEQSAISH AWLSGEKALA AITVNYTPCG HCRQFMNELN SGLDLRIHLP
160 170 180 190 200
GREAHALRDY LPDAFGPKDL EIKTLLMDEQ DHGYALTGDA LSQAAIAAAN
210 220 230 240 250
RSHMPYSKSP SGVALECKDG RIFSGSYAEN AAFNPTLPPL QGALILLNLK
260 270 280 290
GYDYPDIQRA VLAEKADAPL IQWDATSATL KALGCHSIDR VLLA
Length:294
Mass (Da):31,540
Last modified:May 20, 2008 - v1
Checksum:iF0B5CD68AB145D7D
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000948 Genomic DNA. Translation: ACB03308.1.
RefSeqiWP_000553555.1. NC_010473.1.

Genome annotation databases

EnsemblBacteriaiACB03308; ACB03308; ECDH10B_2300.
KEGGiecd:ECDH10B_2300.

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.

Entry informationi

Entry nameiCDD_ECODH
AccessioniPrimary (citable) accession number: B1X7N2
Entry historyiIntegrated into UniProtKB/Swiss-Prot: April 14, 2009
Last sequence update: May 20, 2008
Last modified: July 5, 2017
This is version 63 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Documents

  1. SIMILARITY comments
    Index of protein domains and families