ID A0A2S2CKT3_9PROT Unreviewed; 257 AA.
AC A0A2S2CKT3;
DT 18-JUL-2018, integrated into UniProtKB/TrEMBL.
DT 18-JUL-2018, sequence version 1.
DT 27-MAR-2024, entry version 23.
DE SubName: Full=Exodeoxyribonuclease III {ECO:0000313|EMBL:AWK85118.1};
GN Name=xth {ECO:0000313|EMBL:AWK85118.1};
GN ORFNames=DEW08_02025 {ECO:0000313|EMBL:AWK85118.1};
OS Azospirillum thermophilum.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodospirillales;
OC Azospirillaceae; Azospirillum.
OX NCBI_TaxID=2202148 {ECO:0000313|EMBL:AWK85118.1, ECO:0000313|Proteomes:UP000245629};
RN [1] {ECO:0000313|Proteomes:UP000245629}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CFH 70021 {ECO:0000313|Proteomes:UP000245629};
RA Zhao Z.;
RT "Azospirillum thermophila sp. nov., a novel isolated from hot spring.";
RL Submitted (MAY-2018) to the EMBL/GenBank/DDBJ databases.
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|PIRSR:PIRSR604808-2};
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000256|PIRSR:PIRSR604808-2};
CC Note=Probably binds two magnesium or manganese ions per subunit.
CC {ECO:0000256|PIRSR:PIRSR604808-2};
CC -!- SIMILARITY: Belongs to the DNA repair enzymes AP/ExoA family.
CC {ECO:0000256|ARBA:ARBA00007092}.
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DR EMBL; CP029352; AWK85118.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2S2CKT3; -.
DR KEGG; azz:DEW08_02025; -.
DR OrthoDB; 9803914at2; -.
DR Proteomes; UP000245629; Chromosome 1.
DR GO; GO:0003677; F:DNA binding; IEA:InterPro.
DR GO; GO:0008311; F:double-stranded DNA 3'-5' DNA exonuclease activity; IEA:UniProtKB-EC.
DR GO; GO:0004519; F:endonuclease activity; IEA:InterPro.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0006281; P:DNA repair; IEA:InterPro.
DR CDD; cd09086; ExoIII-like_AP-endo; 1.
DR Gene3D; 3.60.10.10; Endonuclease/exonuclease/phosphatase; 1.
DR InterPro; IPR004808; AP_endonuc_1.
DR InterPro; IPR020847; AP_endonuclease_F1_BS.
DR InterPro; IPR036691; Endo/exonu/phosph_ase_sf.
DR InterPro; IPR005135; Endo/exonuclease/phosphatase.
DR InterPro; IPR037493; ExoIII-like.
DR NCBIfam; TIGR00195; exoDNase_III; 1.
DR NCBIfam; TIGR00633; xth; 1.
DR PANTHER; PTHR43250; EXODEOXYRIBONUCLEASE III; 1.
DR PANTHER; PTHR43250:SF1; EXODEOXYRIBONUCLEASE III; 1.
DR Pfam; PF03372; Exo_endo_phos; 1.
DR SUPFAM; SSF56219; DNase I-like; 1.
DR PROSITE; PS00726; AP_NUCLEASE_F1_1; 1.
DR PROSITE; PS51435; AP_NUCLEASE_F1_4; 1.
PE 3: Inferred from homology;
KW Magnesium {ECO:0000256|PIRSR:PIRSR604808-2};
KW Manganese {ECO:0000256|PIRSR:PIRSR604808-2};
KW Metal-binding {ECO:0000256|PIRSR:PIRSR604808-2};
KW Reference proteome {ECO:0000313|Proteomes:UP000245629}.
FT DOMAIN 4..247
FT /note="Endonuclease/exonuclease/phosphatase"
FT /evidence="ECO:0000259|Pfam:PF03372"
FT ACT_SITE 105
FT /evidence="ECO:0000256|PIRSR:PIRSR604808-1"
FT ACT_SITE 146
FT /note="Proton donor/acceptor"
FT /evidence="ECO:0000256|PIRSR:PIRSR604808-1"
FT ACT_SITE 247
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|PIRSR:PIRSR604808-1"
FT BINDING 7
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PIRSR:PIRSR604808-2"
FT BINDING 34
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PIRSR:PIRSR604808-2"
FT BINDING 146
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PIRSR:PIRSR604808-2"
FT BINDING 148
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PIRSR:PIRSR604808-2"
FT BINDING 246
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PIRSR:PIRSR604808-2"
FT BINDING 247
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PIRSR:PIRSR604808-2"
FT SITE 148
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000256|PIRSR:PIRSR604808-3"
FT SITE 217
FT /note="Important for catalytic activity"
FT /evidence="ECO:0000256|PIRSR:PIRSR604808-3"
FT SITE 247
FT /note="Interaction with DNA substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR604808-3"
SQ SEQUENCE 257 AA; 29041 MW; DAFC4DB8CC2C56A2 CRC64;
MKIATWNVNS AKARLALITD WLRAASPDVV LLQEIKCETA AFPREAFEEL GYHVAVVGQK
AYNGVALLSK TPAEEVMTRL PGEEEDEQAR YVEATVQGLR IASLYLPNGN PAPGDKYAYK
LRWMDRLYAH ARGMLEREVP FVLGGDYNVI PEARDVFSPA AFARDALFLP QTRARFRALL
NLGLTEAYRA LHDDDHAYTF WDYQAGSWPR DLGLRIDHFL LSPQAADRLI DCTIDRRPRG
AEKASDHTPV VLELRDR
//
