ID E1IF38_9CHLR Unreviewed; 219 AA.
AC E1IF38;
DT 30-NOV-2010, integrated into UniProtKB/TrEMBL.
DT 30-NOV-2010, sequence version 1.
DT 27-MAR-2024, entry version 53.
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 ORFNames=OSCT_1939 {ECO:0000313|EMBL:EFO80205.1};
OS Oscillochloris trichoides DG-6.
OC Bacteria; Chloroflexota; Chloroflexia; Chloroflexales; Chloroflexineae;
OC Oscillochloridaceae; Oscillochloris.
OX NCBI_TaxID=765420 {ECO:0000313|EMBL:EFO80205.1, ECO:0000313|Proteomes:UP000054010};
RN [1] {ECO:0000313|EMBL:EFO80205.1, ECO:0000313|Proteomes:UP000054010}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DG-6 {ECO:0000313|EMBL:EFO80205.1,
RC ECO:0000313|Proteomes:UP000054010};
RX PubMed=21037015; DOI=10.1128/JB.00931-10;
RA Kuznetsov B.B., Ivanovsky R.N., Keppen O.I., Sukhacheva M.V.,
RA Bumazhkin B.K., Patutina E.O., Beletsky A.V., Mardanov A.V., Baslerov R.V.,
RA Panteleeva A.N., Kolganova T.V., Ravin N.V., Skryabin K.G.;
RT "Draft genome sequence of the anoxygenic filamentous phototrophic bacterium
RT Oscillochloris trichoides subsp. DG-6.";
RL J. Bacteriol. 193:321-322(2011).
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. {ECO:0000256|HAMAP-
CC Rule:MF_00942}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:EFO80205.1}.
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DR EMBL; ADVR01000080; EFO80205.1; -; Genomic_DNA.
DR RefSeq; WP_006562501.1; NZ_GL501404.1.
DR AlphaFoldDB; E1IF38; -.
DR STRING; 765420.OSCT_1939; -.
DR eggNOG; COG0177; Bacteria.
DR HOGENOM; CLU_012862_3_4_0; -.
DR OrthoDB; 9800977at2; -.
DR Proteomes; UP000054010; Unassembled WGS sequence.
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; IPR004035; Endouclease-III_FeS-bd_BS.
DR InterPro; IPR003265; HhH-GPD_domain.
DR InterPro; IPR023170; HhH_base_excis_C.
DR InterPro; IPR000445; HhH_motif.
DR InterPro; IPR005759; Nth.
DR PANTHER; PTHR43286; ENDONUCLEASE III-LIKE PROTEIN 1; 1.
DR PANTHER; PTHR43286:SF1; ENDONUCLEASE III-LIKE PROTEIN 1; 1.
DR Pfam; PF00633; HHH; 1.
DR Pfam; PF00730; HhH-GPD; 1.
DR PIRSF; PIRSF001435; Nth; 1.
DR SMART; SM00478; ENDO3c; 1.
DR SUPFAM; SSF48150; DNA-glycosylase; 1.
DR PROSITE; PS00764; ENDONUCLEASE_III_1; 1.
PE 3: Inferred from homology;
KW 4Fe-4S {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|HAMAP-Rule:MF_00942};
KW Iron-sulfur {ECO:0000256|HAMAP-Rule:MF_00942};
KW Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000256|HAMAP-Rule:MF_00942};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_00942};
KW Reference proteome {ECO:0000313|Proteomes:UP000054010}.
FT DOMAIN 45..192
FT /note="HhH-GPD"
FT /evidence="ECO:0000259|SMART:SM00478"
FT BINDING 194
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00942"
FT BINDING 201
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00942"
FT BINDING 204
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00942"
FT BINDING 210
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00942"
SQ SEQUENCE 219 AA; 24106 MW; 646095920247B7C9 CRC64;
MTSSFPITTV LDLIEATLPS FNQPLIDQMS AEQQTPFRIL VATLLSLRTK DTLTAVVAPR
LFAHADTPAA MLALGEQRIA ELIYPVGFYH NKARSLIAIA HMLLERYNGA VPSDLEALLT
LPGVGRKTAN LVRTAGFGLP GICVDIHVHR ITNRWGYVAT KDPDATEMAL RTMLPAQYWI
PINRLLVTWG QNICHPTSPR CSTCPVATYC ARIGVTRSR
//
