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Protein

Endonuclease III

Gene

nth

Organism
Rickettsia typhi (strain ATCC VR-144 / Wilmington)
Status
Reviewed-Annotation score: -Protein inferred from homologyi

Functioni

DNA repair enzyme that has both DNA N-glycosylase activity and AP-lyase activity. The DNA N-glycosylase activity releases various damaged pyrimidines from DNA by cleaving the N-glycosidic bond, leaving an AP (apurinic/apyrimidinic) site. The AP-lyase activity cleaves the phosphodiester bond 3' to the AP site by a beta-elimination, leaving a 3'-terminal unsaturated sugar and a product with a terminal 5'-phosphate.UniRule annotation

Catalytic activityi

The C-O-P bond 3' to the apurinic or apyrimidinic site in DNA is broken by a beta-elimination reaction, leaving a 3'-terminal unsaturated sugar and a product with a terminal 5'-phosphate.UniRule annotation

Cofactori

[4Fe-4S] clusterUniRule annotationNote: Binds 1 [4Fe-4S] cluster.UniRule annotation

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Metal bindingi187Iron-sulfur (4Fe-4S)UniRule annotation1
Metal bindingi194Iron-sulfur (4Fe-4S)UniRule annotation1
Metal bindingi197Iron-sulfur (4Fe-4S)UniRule annotation1
Metal bindingi203Iron-sulfur (4Fe-4S)UniRule annotation1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionDNA-binding, Glycosidase, Hydrolase, Lyase
Biological processDNA damage, DNA repair
Ligand4Fe-4S, Iron, Iron-sulfur, Metal-binding

Enzyme and pathway databases

BioCyciRTYP257363:G1G0L-738-MONOMER

Names & Taxonomyi

Protein namesi
Recommended name:
Endonuclease IIIUniRule annotation (EC:4.2.99.18UniRule annotation)
Alternative name(s):
DNA-(apurinic or apyrimidinic site) lyaseUniRule annotation
Gene namesi
Name:nthUniRule annotation
Ordered Locus Names:RT0731
OrganismiRickettsia typhi (strain ATCC VR-144 / Wilmington)
Taxonomic identifieri257363 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaAlphaproteobacteriaRickettsialesRickettsiaceaeRickettsieaeRickettsiatyphus group
Proteomesi
  • UP000000604 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001022221 – 212Endonuclease IIIAdd BLAST212

Proteomic databases

PRIDEiQ68W04

Interactioni

Protein-protein interaction databases

STRINGi257363.RT0731

Structurei

3D structure databases

ProteinModelPortaliQ68W04
SMRiQ68W04
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini108 – 127HhHUniRule annotationAdd BLAST20

Sequence similaritiesi

Belongs to the Nth/MutY family.UniRule annotation

Phylogenomic databases

eggNOGiENOG4105CSM Bacteria
COG0177 LUCA
HOGENOMiHOG000252206
KOiK10773
OMAiKAKNPLC
OrthoDBiPOG091H021U

Family and domain databases

CDDicd00056 ENDO3c, 1 hit
Gene3Di1.10.1670.10, 2 hits
HAMAPiMF_00942 Nth, 1 hit
InterProiView protein in InterPro
IPR011257 DNA_glycosylase
IPR004036 Endonuclease-III-like_CS2
IPR003651 Endonuclease3_FeS-loop_motif
IPR003265 HhH-GPD_domain
IPR000445 HhH_motif
IPR023170 HTH_base_excis_C
IPR005759 Nth
PfamiView protein in Pfam
PF00633 HHH, 1 hit
PF00730 HhH-GPD, 1 hit
SMARTiView protein in SMART
SM00478 ENDO3c, 1 hit
SM00525 FES, 1 hit
SUPFAMiSSF48150 SSF48150, 1 hit
TIGRFAMsiTIGR01083 nth, 1 hit
PROSITEiView protein in PROSITE
PS01155 ENDONUCLEASE_III_2, 1 hit

Sequencei

Sequence statusi: Complete.

Q68W04-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MQAQIVNKIF EIFSKNNPKP QTALIYKNDF TLLVAVILSA RATDISVNLV
60 70 80 90 100
TKHLFETYNT PEKILALGEE GLKKYIKSIG LFNSKAKNII ASCQILIKNY
110 120 130 140 150
QASIPNDFKE LVKLPGVGRK TANVVLNCLF AMPTMAVDTH VFRVSKRIGL
160 170 180 190 200
AKGNTTVIVE KELLQIIDEK WLTHAHHWLV LHGRYICKAR KPSCRICHIK
210
EYCEYYINTF AS
Length:212
Mass (Da):24,079
Last modified:October 11, 2004 - v1
Checksum:i4CAECADA40BC91BA
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE017197 Genomic DNA Translation: AAU04188.1
RefSeqiWP_011191164.1, NC_006142.1

Genome annotation databases

EnsemblBacteriaiAAU04188; AAU04188; RT0731
KEGGirty:RT0731

Similar proteinsi

Entry informationi

Entry nameiEND3_RICTY
AccessioniPrimary (citable) accession number: Q68W04
Entry historyiIntegrated into UniProtKB/Swiss-Prot: February 15, 2005
Last sequence update: October 11, 2004
Last modified: May 23, 2018
This is version 87 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome

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