ID A1K5E7_AZOSB Unreviewed; 213 AA.
AC A1K5E7;
DT 06-FEB-2007, integrated into UniProtKB/TrEMBL.
DT 06-FEB-2007, sequence version 1.
DT 27-MAR-2024, entry version 96.
DE RecName: Full=Endonuclease III {ECO:0000256|HAMAP-Rule:MF_00942};
DE EC=4.2.99.18 {ECO:0000256|HAMAP-Rule:MF_00942};
DE AltName: Full=DNA-(apurinic or apyrimidinic site) lyase {ECO:0000256|HAMAP-Rule:MF_00942};
GN Name=nth {ECO:0000256|HAMAP-Rule:MF_00942,
GN ECO:0000313|EMBL:CAL94052.1};
GN OrderedLocusNames=azo1435 {ECO:0000313|EMBL:CAL94052.1};
OS Azoarcus sp. (strain BH72).
OC Bacteria; Pseudomonadota; Betaproteobacteria; Rhodocyclales; Zoogloeaceae;
OC Azoarcus.
OX NCBI_TaxID=418699 {ECO:0000313|EMBL:CAL94052.1, ECO:0000313|Proteomes:UP000002588};
RN [1] {ECO:0000313|EMBL:CAL94052.1, ECO:0000313|Proteomes:UP000002588}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=BH72 {ECO:0000313|EMBL:CAL94052.1,
RC ECO:0000313|Proteomes:UP000002588};
RX PubMed=17057704; DOI=10.1038/nbt1243;
RA Krause A., Ramakumar A., Bartels D., Battistoni F., Bekel T., Boch J.,
RA Boehm M., Friedrich F., Hurek T., Krause L., Linke B., McHardy A.C.,
RA Sarkar A., Schneiker S., Syed A.A., Thauer R., Vorhoelter F.-J.,
RA Weidner S., Puehler A., Reinhold-Hurek B., Kaiser O., Goesmann A.;
RT "Complete genome of the mutualistic, N2-fixing grass endophyte Azoarcus sp.
RT strain BH72.";
RL Nat. Biotechnol. 24:1385-1391(2006).
CC -!- FUNCTION: DNA repair enzyme that has both DNA N-glycosylase activity
CC and AP-lyase activity. The DNA N-glycosylase activity releases various
CC damaged pyrimidines from DNA by cleaving the N-glycosidic bond, leaving
CC an AP (apurinic/apyrimidinic) site. The AP-lyase activity cleaves the
CC phosphodiester bond 3' to the AP site by a beta-elimination, leaving a
CC 3'-terminal unsaturated sugar and a product with a terminal 5'-
CC phosphate. {ECO:0000256|HAMAP-Rule:MF_00942}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2'-deoxyribonucleotide-(2'-deoxyribose 5'-phosphate)-2'-
CC deoxyribonucleotide-DNA = a 3'-end 2'-deoxyribonucleotide-(2,3-
CC dehydro-2,3-deoxyribose 5'-phosphate)-DNA + a 5'-end 5'-monophospho-
CC 2'-deoxyribonucleoside-DNA + H(+); Xref=Rhea:RHEA:66592, Rhea:RHEA-
CC COMP:13180, Rhea:RHEA-COMP:16897, Rhea:RHEA-COMP:17067,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:136412, ChEBI:CHEBI:157695,
CC ChEBI:CHEBI:167181; EC=4.2.99.18; Evidence={ECO:0000256|HAMAP-
CC Rule:MF_00942};
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00942};
CC Note=Binds 1 [4Fe-4S] cluster. {ECO:0000256|HAMAP-Rule:MF_00942};
CC -!- SIMILARITY: Belongs to the Nth/MutY family.
CC {ECO:0000256|ARBA:ARBA00008343, ECO:0000256|HAMAP-Rule:MF_00942}.
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DR EMBL; AM406670; CAL94052.1; -; Genomic_DNA.
DR AlphaFoldDB; A1K5E7; -.
DR STRING; 62928.azo1435; -.
DR KEGG; azo:azo1435; -.
DR eggNOG; COG0177; Bacteria.
DR HOGENOM; CLU_012862_3_0_4; -.
DR Proteomes; UP000002588; Chromosome.
DR GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-UniRule.
DR GO; GO:0140078; F:class I DNA-(apurinic or apyrimidinic site) endonuclease activity; IEA:UniProtKB-EC.
DR GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0019104; F:DNA N-glycosylase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0006284; P:base-excision repair; IEA:InterPro.
DR CDD; cd00056; ENDO3c; 1.
DR Gene3D; 1.10.1670.10; Helix-hairpin-Helix base-excision DNA repair enzymes (C-terminal); 1.
DR HAMAP; MF_00942; Nth; 1.
DR InterPro; IPR011257; DNA_glycosylase.
DR InterPro; IPR003651; Endonuclease3_FeS-loop_motif.
DR InterPro; IPR003265; HhH-GPD_domain.
DR InterPro; IPR023170; HhH_base_excis_C.
DR InterPro; IPR000445; HhH_motif.
DR InterPro; IPR005759; Nth.
DR NCBIfam; TIGR01083; nth; 1.
DR PANTHER; PTHR10359; A/G-SPECIFIC ADENINE GLYCOSYLASE/ENDONUCLEASE III; 1.
DR PANTHER; PTHR10359:SF18; ENDONUCLEASE III; 1.
DR Pfam; PF10576; EndIII_4Fe-2S; 1.
DR Pfam; PF00633; HHH; 1.
DR Pfam; PF00730; HhH-GPD; 1.
DR PIRSF; PIRSF001435; Nth; 1.
DR SMART; SM00478; ENDO3c; 1.
DR SMART; SM00525; FES; 1.
DR SUPFAM; SSF48150; DNA-glycosylase; 1.
PE 3: Inferred from homology;
KW 4Fe-4S {ECO:0000256|ARBA:ARBA00022485, ECO:0000256|HAMAP-Rule:MF_00942};
KW DNA damage {ECO:0000256|ARBA:ARBA00022763, ECO:0000256|HAMAP-
KW Rule:MF_00942};
KW DNA repair {ECO:0000256|ARBA:ARBA00023204, ECO:0000256|HAMAP-
KW Rule:MF_00942}; DNA-binding {ECO:0000256|HAMAP-Rule:MF_00942};
KW Glycosidase {ECO:0000256|ARBA:ARBA00023295, ECO:0000256|HAMAP-
KW Rule:MF_00942};
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000256|HAMAP-Rule:MF_00942};
KW Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|HAMAP-Rule:MF_00942};
KW Iron-sulfur {ECO:0000256|ARBA:ARBA00023014, ECO:0000256|HAMAP-
KW Rule:MF_00942};
KW Lyase {ECO:0000256|HAMAP-Rule:MF_00942, ECO:0000313|EMBL:CAL94052.1};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_00942}; Reference proteome {ECO:0000313|Proteomes:UP000002588}.
FT DOMAIN 41..188
FT /note="HhH-GPD"
FT /evidence="ECO:0000259|SMART:SM00478"
FT BINDING 190
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00942"
FT BINDING 197
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00942"
FT BINDING 200
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00942"
FT BINDING 206
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00942"
SQ SEQUENCE 213 AA; 23531 MW; AB75BE131AF3AF1A CRC64;
MALMKREAIQ EFFSRLAAAN PEPKTELEYQ TPYQLLVAVV LSAQATDKSV NLATRKLFAA
APTPEAMLAL GEEGVADYIK TIGLFRNKAK NTVALSRLLL ERHGGEVPRD REALEALPGV
GRKTANVVLN TIFREPAMAV DTHIFRLANR TGLAPGKDVM AVEQSLLKRV PKAFLLDAHH
WLILHGRYVC TARKPNCAAC IVRDLCLFRD KTA
//
