A0A9W8F144 · A0A9W8F144_9FUNG
- ProteinEndonuclease III homolog
- GeneNTH1_2
- StatusUniProtKB unreviewed (TrEMBL)
- Organism
- Amino acids840 (go to sequence)
- Protein existenceInferred from homology
- Annotation score4/5
Function
function
Bifunctional DNA N-glycosylase with associated apurinic/apyrimidinic (AP) lyase function that catalyzes the first step in base excision repair (BER), the primary repair pathway for the repair of oxidative DNA damage. The DNA N-glycosylase activity releases the damaged DNA base from DNA by cleaving the N-glycosidic bond, leaving an AP site. The AP lyase activity cleaves the phosphodiester bond 3' to the AP site by a beta-elimination. Primarily recognizes and repairs oxidative base damage of pyrimidines.
Catalytic activity
- 2'-deoxyribonucleotide-(2'-deoxyribose 5'-phosphate)-2'-deoxyribonucleotide-DNA = a 3'-end 2'-deoxyribonucleotide-(2,3-dehydro-2,3-deoxyribose 5'-phosphate)-DNA + a 5'-end 5'-phospho-2'-deoxyribonucleoside-DNA + H+
Cofactor
Note: Binds 1 [4Fe-4S] cluster. The cluster does not appear to play a role in catalysis, but is probably involved in the proper positioning of the enzyme along the DNA strand.
Features
Showing features for active site, site, binding site.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Active site | 478 | Nucleophile; for N-glycosylase activity | ||||
Sequence: K | ||||||
Site | 497 | Important for catalytic activity | ||||
Sequence: D | ||||||
Binding site | 548 | [4Fe-4S] cluster (UniProtKB | ChEBI) | ||||
Sequence: C | ||||||
Binding site | 555 | [4Fe-4S] cluster (UniProtKB | ChEBI) | ||||
Sequence: C | ||||||
Binding site | 558 | [4Fe-4S] cluster (UniProtKB | ChEBI) | ||||
Sequence: C | ||||||
Binding site | 564 | [4Fe-4S] cluster (UniProtKB | ChEBI) | ||||
Sequence: C |
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | mitochondrion | |
Cellular Component | nucleus | |
Molecular Function | 4 iron, 4 sulfur cluster binding | |
Molecular Function | DNA binding | |
Molecular Function | DNA-(apurinic or apyrimidinic site) endonuclease activity | |
Molecular Function | lyase activity | |
Molecular Function | metal ion binding | |
Molecular Function | oxidized pyrimidine nucleobase lesion DNA N-glycosylase activity | |
Biological Process | base-excision repair, AP site formation |
Keywords
- Molecular function
- Biological process
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameEndonuclease III homolog
- EC number
- Alternative names
Gene names
Organism names
- Organism
- Strain
- Taxonomic lineageEukaryota > Fungi > Fungi incertae sedis > Zoopagomycota > Kickxellomycotina > Kickxellomycetes > Kickxellales > Kickxellaceae > Coemansia
Accessions
- Primary accessionA0A9W8F144
Proteomes
Subcellular Location
Structure
Family & Domains
Features
Showing features for region, compositional bias, domain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Region | 18-82 | Disordered | ||||
Sequence: KIKEAGVTNSASSDSYHGSTRSASTAVSDDMRHYQRARPSISVRTKDISWPVGSSSKDSPRPDDY | ||||||
Compositional bias | 23-46 | Polar residues | ||||
Sequence: GVTNSASSDSYHGSTRSASTAVSD | ||||||
Compositional bias | 296-314 | Polar residues | ||||
Sequence: VSISPTSTNRPTSLDSGAS | ||||||
Region | 296-345 | Disordered | ||||
Sequence: VSISPTSTNRPTSLDSGASEGSVGVALKRPPKKQPPPEDDDELRGPAPRD | ||||||
Compositional bias | 327-345 | Basic and acidic residues | ||||
Sequence: KKQPPPEDDDELRGPAPRD | ||||||
Domain | 393-546 | HhH-GPD | ||||
Sequence: LSAQTKDEITAEAVRGLSQRLPGGLTPKSLSEAPIDLVHECVRKVGFWQRKSNYIKEAARTCLEQYAGDIPRTVPQLLSLPGVGPKMAYLTMHAAWQDTQGIGVDTHVLRISHRLGWVSESAKSPEATRHALESWMPRSLWRELNPLLVGLGQT | ||||||
Region | 569-607 | Disordered | ||||
Sequence: QPRSRSNSRSAAGDGSRPRSGAGVKQQQSQDSIFSESTT | ||||||
Compositional bias | 589-607 | Polar residues | ||||
Sequence: GAGVKQQQSQDSIFSESTT | ||||||
Region | 659-686 | Disordered | ||||
Sequence: SYRAAPAPATTDEEEAALSEGTGGRGGD | ||||||
Region | 707-761 | Disordered | ||||
Sequence: ALNDDEDRIETSSFRHNSGGDGGNAGHDELSNAAEMQLQYSSDREIDGGVLPKPE | ||||||
Region | 776-796 | Disordered | ||||
Sequence: SNAASEEVRPEAKTDKVRSAR | ||||||
Compositional bias | 779-796 | Basic and acidic residues | ||||
Sequence: ASEEVRPEAKTDKVRSAR | ||||||
Region | 815-840 | Disordered | ||||
Sequence: QWALGEDWDPEDSSSLSSLSDLDNAV | ||||||
Compositional bias | 825-840 | Polar residues | ||||
Sequence: EDSSSLSSLSDLDNAV |
Sequence similarities
Belongs to the Nth/MutY family.
Keywords
- Domain
Family and domain databases
Sequence
- Sequence statusComplete
- Length840
- Mass (Da)90,945
- Last updated2023-11-08 v1
- ChecksumA9EBEEA7147CBD18
Features
Showing features for compositional bias.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Compositional bias | 23-46 | Polar residues | ||||
Sequence: GVTNSASSDSYHGSTRSASTAVSD | ||||||
Compositional bias | 296-314 | Polar residues | ||||
Sequence: VSISPTSTNRPTSLDSGAS | ||||||
Compositional bias | 327-345 | Basic and acidic residues | ||||
Sequence: KKQPPPEDDDELRGPAPRD | ||||||
Compositional bias | 589-607 | Polar residues | ||||
Sequence: GAGVKQQQSQDSIFSESTT | ||||||
Compositional bias | 779-796 | Basic and acidic residues | ||||
Sequence: ASEEVRPEAKTDKVRSAR | ||||||
Compositional bias | 825-840 | Polar residues | ||||
Sequence: EDSSSLSSLSDLDNAV |
Keywords
- Technical term