ID   NFI_KOSOT               Reviewed;         226 AA.
AC   C5CGG9;
DT   22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT   28-JUL-2009, sequence version 1.
DT   03-AUG-2022, entry version 53.
DE   RecName: Full=Endonuclease V {ECO:0000255|HAMAP-Rule:MF_00801};
DE            EC=3.1.21.7 {ECO:0000255|HAMAP-Rule:MF_00801};
DE   AltName: Full=Deoxyinosine 3'endonuclease {ECO:0000255|HAMAP-Rule:MF_00801};
DE   AltName: Full=Deoxyribonuclease V {ECO:0000255|HAMAP-Rule:MF_00801};
DE            Short=DNase V {ECO:0000255|HAMAP-Rule:MF_00801};
GN   Name=nfi {ECO:0000255|HAMAP-Rule:MF_00801}; OrderedLocusNames=Kole_1869;
OS   Kosmotoga olearia (strain ATCC BAA-1733 / DSM 21960 / TBF 19.5.1).
OC   Bacteria; Thermotogae; Kosmotogales; Kosmotogaceae; Kosmotoga.
OX   NCBI_TaxID=521045;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-1733 / DSM 21960 / TBF 19.5.1;
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Tice H., Bruce D.,
RA   Goodwin L., Pitluck S., Chertkov O., Brettin T., Detter J.C., Han C.,
RA   Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N., Ovchinnikova G.,
RA   Noll K.;
RT   "Complete sequence of Thermotogales bacterium TBF 19.5.1.";
RL   Submitted (JUN-2009) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: DNA repair enzyme involved in the repair of deaminated bases.
CC       Selectively cleaves double-stranded DNA at the second phosphodiester
CC       bond 3' to a deoxyinosine leaving behind the intact lesion on the
CC       nicked DNA. {ECO:0000255|HAMAP-Rule:MF_00801}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Endonucleolytic cleavage at apurinic or apyrimidinic sites to
CC         products with a 5'-phosphate.; EC=3.1.21.7;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00801};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00801};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00801}.
CC   -!- SIMILARITY: Belongs to the endonuclease V family. {ECO:0000255|HAMAP-
CC       Rule:MF_00801}.
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DR   EMBL; CP001634; ACR80550.1; -; Genomic_DNA.
DR   RefSeq; WP_015869193.1; NC_012785.1.
DR   AlphaFoldDB; C5CGG9; -.
DR   SMR; C5CGG9; -.
DR   STRING; 521045.Kole_1869; -.
DR   EnsemblBacteria; ACR80550; ACR80550; Kole_1869.
DR   KEGG; kol:Kole_1869; -.
DR   eggNOG; COG1515; Bacteria.
DR   HOGENOM; CLU_047631_1_1_0; -.
DR   OMA; RIHFRQA; -.
DR   OrthoDB; 1681607at2; -.
DR   Proteomes; UP000002382; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0043737; F:deoxyribonuclease V activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0006281; P:DNA repair; IEA:UniProtKB-UniRule.
DR   CDD; cd06559; Endonuclease_V; 1.
DR   HAMAP; MF_00801; Endonuclease_5; 1.
DR   InterPro; IPR007581; Endonuclease-V.
DR   PANTHER; PTHR28511; PTHR28511; 1.
DR   Pfam; PF04493; Endonuclease_5; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; DNA damage; DNA repair; Endonuclease; Hydrolase; Magnesium;
KW   Metal-binding; Nuclease; Reference proteome.
FT   CHAIN           1..226
FT                   /note="Endonuclease V"
FT                   /id="PRO_1000212974"
FT   BINDING         43
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00801"
FT   BINDING         109
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00801"
FT   SITE            79
FT                   /note="Interaction with target DNA"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00801"
SQ   SEQUENCE   226 AA;  25428 MW;  68975775ADC6F00C CRC64;
     MKIRCLHDWN VSLEEAADIQ RTLKGMLSFE FPAKKVSIVA GVDVSFPQKN LGLCVIVVMD
     DTLKVIESVY HTQEVHIPYV SGFLSFREGP IFIETVKKLK IVPDLFFFDG QGIAHPRGLG
     IAAHMGLLLE KPSLGVAKSH LFGSYNEPGR NKGDFSYMYN KTGEIIGTVL RTKKNTKPVF
     VSPGHMMDVD TAMSLTLKYT GKYRLPEPTR QAHILTQRLR KNHLLR