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Protein

Endonuclease III

Gene

nth

Organism
Synechocystis sp. (strain PCC 6803 / Kazusa)
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)DescriptionActionsGraphical viewLength
Metal bindingi197Iron-sulfur (4Fe-4S)UniRule annotation1
Metal bindingi204Iron-sulfur (4Fe-4S)UniRule annotation1
Metal bindingi207Iron-sulfur (4Fe-4S)UniRule annotation1
Metal bindingi213Iron-sulfur (4Fe-4S)UniRule annotation1

GO - Molecular functioni

GO - Biological processi

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:slr1822
OrganismiSynechocystis sp. (strain PCC 6803 / Kazusa)
Taxonomic identifieri1111708 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaSynechococcalesMerismopediaceaeSynechocystis
Proteomesi
  • UP000001425 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001022231 – 219Endonuclease IIIAdd BLAST219

Proteomic databases

PRIDEiP73715.

Structurei

3D structure databases

ProteinModelPortaliP73715.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini117 – 136HhHUniRule annotationAdd BLAST20

Sequence similaritiesi

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

Phylogenomic databases

HOGENOMiHOG000252208.
InParanoidiP73715.
KOiK10773.
OMAiYVCTARK.
PhylomeDBiP73715.

Family and domain databases

CDDicd00056. ENDO3c. 1 hit.
Gene3Di1.10.1670.10. 1 hit.
1.10.340.30. 1 hit.
HAMAPiMF_00942. Nth. 1 hit.
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.
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.
[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.

P73715-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSSLLRKMAS KKQRATEILL ILKKLYPGAT CSLDYQTPVQ LLVATILSAQ
60 70 80 90 100
CTDERVNKVT PALFQRYPDA NALAYGDRQE IEELIHSTGF FRNKAKNIQG
110 120 130 140 150
ACRKIVEEFD GEVPQRMEEL LTLPGVARKT ANVVLAHAFG ILAGVTVDTH
160 170 180 190 200
VKRLSQRLGL TKATDPIRIE RDLMKLIPQP DWENFSIHII YHGRAVCAAR
210
KPLCGECQLA HLCPSAQAS
Length:219
Mass (Da):24,377
Last modified:February 1, 1997 - v1
Checksum:iDB4EF2681C309949
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BA000022 Genomic DNA. Translation: BAA17762.1.
PIRiS77204.

Genome annotation databases

EnsemblBacteriaiBAA17762; BAA17762; BAA17762.
KEGGisyn:slr1822.
PATRICi23839458. VBISynSp132158_1293.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BA000022 Genomic DNA. Translation: BAA17762.1.
PIRiS77204.

3D structure databases

ProteinModelPortaliP73715.
ModBaseiSearch...
MobiDBiSearch...

Proteomic databases

PRIDEiP73715.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiBAA17762; BAA17762; BAA17762.
KEGGisyn:slr1822.
PATRICi23839458. VBISynSp132158_1293.

Phylogenomic databases

HOGENOMiHOG000252208.
InParanoidiP73715.
KOiK10773.
OMAiYVCTARK.
PhylomeDBiP73715.

Family and domain databases

CDDicd00056. ENDO3c. 1 hit.
Gene3Di1.10.1670.10. 1 hit.
1.10.340.30. 1 hit.
HAMAPiMF_00942. Nth. 1 hit.
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.
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.
[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...

Entry informationi

Entry nameiEND3_SYNY3
AccessioniPrimary (citable) accession number: P73715
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 15, 1998
Last sequence update: February 1, 1997
Last modified: November 2, 2016
This is version 115 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. SIMILARITY comments
    Index of protein domains and families
  2. Synechocystis PCC 6803
    Synechocystis (strain PCC 6803): entries and gene names

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.