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Protein

Endonuclease III

Gene

nth

Organism
Rickettsia typhi (strain ATCC VR-144 / Wilmington)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-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)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi187 – 1871Iron-sulfur (4Fe-4S)UniRule annotation
Metal bindingi194 – 1941Iron-sulfur (4Fe-4S)UniRule annotation
Metal bindingi197 – 1971Iron-sulfur (4Fe-4S)UniRule annotation
Metal bindingi203 – 2031Iron-sulfur (4Fe-4S)UniRule annotation

GO - Molecular functioni

  1. 4 iron, 4 sulfur cluster binding Source: UniProtKB-HAMAP
  2. DNA-(apurinic or apyrimidinic site) lyase activity Source: UniProtKB-HAMAP
  3. DNA binding Source: UniProtKB-HAMAP
  4. DNA N-glycosylase activity Source: UniProtKB-HAMAP
  5. metal ion binding Source: UniProtKB-KW

GO - Biological processi

  1. base-excision repair Source: InterPro
Complete GO annotation...

Keywords - Molecular functioni

Glycosidase, Hydrolase, Lyase

Keywords - Biological processi

DNA damage, DNA repair

Keywords - Ligandi

4Fe-4S, DNA-binding, Iron, Iron-sulfur, Metal-binding

Enzyme and pathway databases

BioCyciRTYP257363:GJEQ-770-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
ProteomesiUP000000604 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 212212Endonuclease IIIPRO_0000102222Add
BLAST

Interactioni

Protein-protein interaction databases

STRINGi257363.RT0731.

Structurei

3D structure databases

ProteinModelPortaliQ68W04.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini108 – 12720HhHUniRule annotationAdd
BLAST

Sequence similaritiesi

Belongs to the Nth/MutY family.UniRule annotation
Contains 1 HhH domain.UniRule annotation

Phylogenomic databases

eggNOGiCOG0177.
HOGENOMiHOG000252206.
KOiK10773.
OMAiNNKSKHL.
OrthoDBiEOG6H4KC5.

Family and domain databases

Gene3Di1.10.1670.10. 1 hit.
1.10.340.30. 1 hit.
HAMAPiMF_00942. Nth.
InterProiIPR011257. DNA_glycosylase.
IPR004036. Endonuclease-III-like_CS2.
IPR003651. Endouclease3_FeS-loop_motif.
IPR003265. HhH-GPD_domain.
IPR000445. HhH_motif.
IPR003583. Hlx-hairpin-Hlx_DNA-bd_motif.
IPR023170. HTH_base_excis_C.
IPR005759. Nth.
[Graphical view]
PfamiPF00633. HHH. 1 hit.
PF00730. HhH-GPD. 1 hit.
[Graphical view]
PIRSFiPIRSF001435. Nth. 1 hit.
SMARTiSM00478. ENDO3c. 1 hit.
SM00525. FES. 1 hit.
SM00278. HhH1. 1 hit.
[Graphical view]
SUPFAMiSSF48150. SSF48150. 1 hit.
TIGRFAMsiTIGR01083. nth. 1 hit.
PROSITEiPS01155. ENDONUCLEASE_III_2. 1 hit.
[Graphical view]

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.
RefSeqiYP_067670.1. NC_006142.1.

Genome annotation databases

EnsemblBacteriaiAAU04188; AAU04188; RT0731.
KEGGirty:RT0731.
PATRICi17910714. VBIRicTyp34752_0751.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE017197 Genomic DNA. Translation: AAU04188.1.
RefSeqiYP_067670.1. NC_006142.1.

3D structure databases

ProteinModelPortaliQ68W04.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi257363.RT0731.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAU04188; AAU04188; RT0731.
KEGGirty:RT0731.
PATRICi17910714. VBIRicTyp34752_0751.

Phylogenomic databases

eggNOGiCOG0177.
HOGENOMiHOG000252206.
KOiK10773.
OMAiNNKSKHL.
OrthoDBiEOG6H4KC5.

Enzyme and pathway databases

BioCyciRTYP257363:GJEQ-770-MONOMER.

Family and domain databases

Gene3Di1.10.1670.10. 1 hit.
1.10.340.30. 1 hit.
HAMAPiMF_00942. Nth.
InterProiIPR011257. DNA_glycosylase.
IPR004036. Endonuclease-III-like_CS2.
IPR003651. Endouclease3_FeS-loop_motif.
IPR003265. HhH-GPD_domain.
IPR000445. HhH_motif.
IPR003583. Hlx-hairpin-Hlx_DNA-bd_motif.
IPR023170. HTH_base_excis_C.
IPR005759. Nth.
[Graphical view]
PfamiPF00633. HHH. 1 hit.
PF00730. HhH-GPD. 1 hit.
[Graphical view]
PIRSFiPIRSF001435. Nth. 1 hit.
SMARTiSM00478. ENDO3c. 1 hit.
SM00525. FES. 1 hit.
SM00278. HhH1. 1 hit.
[Graphical view]
SUPFAMiSSF48150. SSF48150. 1 hit.
TIGRFAMsiTIGR01083. nth. 1 hit.
PROSITEiPS01155. ENDONUCLEASE_III_2. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: ATCC VR-144 / Wilmington.

Entry informationi

Entry nameiEND3_RICTY
AccessioniPrimary (citable) accession number: Q68W04
Entry historyi
Integrated into UniProtKB/Swiss-Prot: February 15, 2005
Last sequence update: October 11, 2004
Last modified: April 29, 2015
This is version 74 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

Complete proteome

Documents

  1. Rickettsia typhi
    Rickettsia typhi (strain Wilmington): entries and gene names
  2. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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 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.