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Protein

Endonuclease III

Gene

nth

Organism
Rickettsia prowazekii (strain Madrid E)
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

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:RP746
OrganismiRickettsia prowazekii (strain Madrid E)
Taxonomic identifieri272947 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaAlphaproteobacteriaRickettsialesRickettsiaceaeRickettsieaeRickettsiatyphus group
ProteomesiUP000002480: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 212212Endonuclease IIIPRO_0000102221Add
BLAST

Interactioni

Protein-protein interaction databases

STRINGi272947.RP746.

Structurei

3D structure databases

ProteinModelPortaliO05956.
SMRiO05956. Positions 7-208.
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.
IPR004035. Endouclease-III_FeS-bd_BS.
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]
PfamiPF10576. EndIII_4Fe-2S. 1 hit.
PF00633. 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.
PROSITEiPS00764. ENDONUCLEASE_III_1. 1 hit.
PS01155. ENDONUCLEASE_III_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

O05956-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MQAQIMNKIF EIFSKNNPKP QTELIYKNDF TLLVAVILSA RATDISVNLA
60 70 80 90 100
TKHLFETYNT PEKFLELGEE GLKKYIKSIG LFNSKAKNII ALCQILIKNY
110 120 130 140 150
QTSIPNNFKE LVKLPGVGRK TANVVLNCLF AMPTMAVDTH VFRVSKRIGL
160 170 180 190 200
AKGNTAAIVE KELLQIIDEK WLTYAHHWLI LHGRYICKAR KPGCNICPIK
210
EYCEYYINTF SS
Length:212
Mass (Da):24,174
Last modified:July 1, 1997 - v1
Checksum:iA7FDA4F6033A6382
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
Y11778 Genomic DNA. Translation: CAA72458.1.
AJ235273 Genomic DNA. Translation: CAA15174.1.
PIRiF71634.
RefSeqiNP_221098.1. NC_000963.1.

Genome annotation databases

EnsemblBacteriaiCAA15174; CAA15174; CAA15174.
GeneIDi883968.
KEGGirpr:RP746.
PATRICi17902351. VBIRicPro72556_0779.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
Y11778 Genomic DNA. Translation: CAA72458.1.
AJ235273 Genomic DNA. Translation: CAA15174.1.
PIRiF71634.
RefSeqiNP_221098.1. NC_000963.1.

3D structure databases

ProteinModelPortaliO05956.
SMRiO05956. Positions 7-208.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi272947.RP746.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiCAA15174; CAA15174; CAA15174.
GeneIDi883968.
KEGGirpr:RP746.
PATRICi17902351. VBIRicPro72556_0779.

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.
IPR004035. Endouclease-III_FeS-bd_BS.
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]
PfamiPF10576. EndIII_4Fe-2S. 1 hit.
PF00633. 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.
PROSITEiPS00764. ENDONUCLEASE_III_1. 1 hit.
PS01155. ENDONUCLEASE_III_2. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

« Hide 'large scale' publications
  1. "Genomic rearrangements during evolution of the obligate intracellular parasite Rickettsia prowazekii as inferred from an analysis of 52015 bp nucleotide sequence."
    Andersson J.O., Andersson S.G.E.
    Microbiology 143:2783-2795(1997) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
    Strain: Madrid E.
  2. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: Madrid E.

Entry informationi

Entry nameiEND3_RICPR
AccessioniPrimary (citable) accession number: O05956
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 15, 1998
Last sequence update: July 1, 1997
Last modified: January 7, 2015
This is version 97 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, Reference proteome

Documents

  1. Rickettsia prowazekii
    Rickettsia prowazekii (strain Madrid E): 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.