ID FPG_GEOSL Reviewed; 271 AA. AC Q74EG5; DT 21-MAR-2006, integrated into UniProtKB/Swiss-Prot. DT 23-JAN-2007, sequence version 3. DT 27-MAR-2024, entry version 123. DE RecName: Full=Formamidopyrimidine-DNA glycosylase {ECO:0000255|HAMAP-Rule:MF_00103}; DE Short=Fapy-DNA glycosylase {ECO:0000255|HAMAP-Rule:MF_00103}; DE EC=3.2.2.23 {ECO:0000255|HAMAP-Rule:MF_00103}; DE AltName: Full=DNA-(apurinic or apyrimidinic site) lyase MutM {ECO:0000255|HAMAP-Rule:MF_00103}; DE Short=AP lyase MutM {ECO:0000255|HAMAP-Rule:MF_00103}; DE EC=4.2.99.18 {ECO:0000255|HAMAP-Rule:MF_00103}; GN Name=mutM {ECO:0000255|HAMAP-Rule:MF_00103}; GN Synonyms=fpg {ECO:0000255|HAMAP-Rule:MF_00103}; GN OrderedLocusNames=GSU0997; OS Geobacter sulfurreducens (strain ATCC 51573 / DSM 12127 / PCA). OC Bacteria; Thermodesulfobacteriota; Desulfuromonadia; Geobacterales; OC Geobacteraceae; Geobacter. OX NCBI_TaxID=243231; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=ATCC 51573 / DSM 12127 / PCA; RX PubMed=14671304; DOI=10.1126/science.1088727; RA Methe B.A., Nelson K.E., Eisen J.A., Paulsen I.T., Nelson W.C., RA Heidelberg J.F., Wu D., Wu M., Ward N.L., Beanan M.J., Dodson R.J., RA Madupu R., Brinkac L.M., Daugherty S.C., DeBoy R.T., Durkin A.S., RA Gwinn M.L., Kolonay J.F., Sullivan S.A., Haft D.H., Selengut J., RA Davidsen T.M., Zafar N., White O., Tran B., Romero C., Forberger H.A., RA Weidman J.F., Khouri H.M., Feldblyum T.V., Utterback T.R., Van Aken S.E., RA Lovley D.R., Fraser C.M.; RT "Genome of Geobacter sulfurreducens: metal reduction in subsurface RT environments."; RL Science 302:1967-1969(2003). CC -!- FUNCTION: Involved in base excision repair of DNA damaged by oxidation CC or by mutagenic agents. Acts as a DNA glycosylase that recognizes and CC removes damaged bases. Has a preference for oxidized purines, such as CC 7,8-dihydro-8-oxoguanine (8-oxoG). Has AP (apurinic/apyrimidinic) lyase CC activity and introduces nicks in the DNA strand. Cleaves the DNA CC backbone by beta-delta elimination to generate a single-strand break at CC the site of the removed base with both 3'- and 5'-phosphates. CC {ECO:0000255|HAMAP-Rule:MF_00103}. CC -!- CATALYTIC ACTIVITY: CC Reaction=Hydrolysis of DNA containing ring-opened 7-methylguanine CC residues, releasing 2,6-diamino-4-hydroxy-5-(N- CC methyl)formamidopyrimidine.; EC=3.2.2.23; CC Evidence={ECO:0000255|HAMAP-Rule:MF_00103}; 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:0000255|HAMAP- CC Rule:MF_00103}; CC -!- COFACTOR: CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105; Evidence={ECO:0000255|HAMAP- CC Rule:MF_00103}; CC Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_00103}; CC -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_00103}. CC -!- SIMILARITY: Belongs to the FPG family. {ECO:0000255|HAMAP- CC Rule:MF_00103}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; AE017180; AAR34324.1; -; Genomic_DNA. DR RefSeq; NP_952051.1; NC_002939.5. DR RefSeq; WP_010941662.1; NC_002939.5. DR AlphaFoldDB; Q74EG5; -. DR SMR; Q74EG5; -. DR STRING; 243231.GSU0997; -. DR EnsemblBacteria; AAR34324; AAR34324; GSU0997. DR KEGG; gsu:GSU0997; -. DR PATRIC; fig|243231.5.peg.997; -. DR eggNOG; COG0266; Bacteria. DR HOGENOM; CLU_038423_1_1_7; -. DR InParanoid; Q74EG5; -. DR OrthoDB; 9800855at2; -. DR Proteomes; UP000000577; Chromosome. DR GO; GO:0034039; F:8-oxo-7,8-dihydroguanine DNA N-glycosylase activity; IBA:GO_Central. DR GO; GO:0140078; F:class I DNA-(apurinic or apyrimidinic site) endonuclease activity; IEA:UniProtKB-EC. DR GO; GO:0003684; F:damaged DNA binding; IEA:InterPro. DR GO; GO:0003906; F:DNA-(apurinic or apyrimidinic site) endonuclease activity; IBA:GO_Central. DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule. DR GO; GO:0006284; P:base-excision repair; IBA:GO_Central. DR CDD; cd08966; EcFpg-like_N; 1. DR Gene3D; 1.10.8.50; -; 1. DR Gene3D; 3.20.190.10; MutM-like, N-terminal; 1. DR HAMAP; MF_00103; Fapy_DNA_glycosyl; 1. DR InterPro; IPR015886; DNA_glyclase/AP_lyase_DNA-bd. DR InterPro; IPR015887; DNA_glyclase_Znf_dom_DNA_BS. DR InterPro; IPR020629; Formamido-pyr_DNA_Glyclase. DR InterPro; IPR012319; FPG_cat. DR InterPro; IPR035937; MutM-like_N-ter. DR InterPro; IPR010979; Ribosomal_uS13-like_H2TH. DR InterPro; IPR000214; Znf_DNA_glyclase/AP_lyase. DR InterPro; IPR010663; Znf_FPG/IleRS. DR NCBIfam; TIGR00577; fpg; 1. DR PANTHER; PTHR22993:SF9; ENDONUCLEASE 8-LIKE 1; 1. DR PANTHER; PTHR22993; FORMAMIDOPYRIMIDINE-DNA GLYCOSYLASE; 1. DR Pfam; PF01149; Fapy_DNA_glyco; 1. DR Pfam; PF06831; H2TH; 1. DR Pfam; PF06827; zf-FPG_IleRS; 1. DR SMART; SM00898; Fapy_DNA_glyco; 1. DR SMART; SM01232; H2TH; 1. DR SUPFAM; SSF57716; Glucocorticoid receptor-like (DNA-binding domain); 1. DR SUPFAM; SSF81624; N-terminal domain of MutM-like DNA repair proteins; 1. DR SUPFAM; SSF46946; S13-like H2TH domain; 1. DR PROSITE; PS51068; FPG_CAT; 1. DR PROSITE; PS01242; ZF_FPG_1; 1. DR PROSITE; PS51066; ZF_FPG_2; 1. PE 3: Inferred from homology; KW DNA damage; DNA repair; DNA-binding; Glycosidase; Hydrolase; Lyase; KW Metal-binding; Multifunctional enzyme; Reference proteome; Zinc; KW Zinc-finger. FT INIT_MET 1 FT /note="Removed" FT /evidence="ECO:0000250" FT CHAIN 2..271 FT /note="Formamidopyrimidine-DNA glycosylase" FT /id="PRO_0000228436" FT ZN_FING 237..271 FT /note="FPG-type" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00103" FT ACT_SITE 2 FT /note="Schiff-base intermediate with DNA" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00103" FT ACT_SITE 3 FT /note="Proton donor" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00103" FT ACT_SITE 58 FT /note="Proton donor; for beta-elimination activity" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00103" FT ACT_SITE 261 FT /note="Proton donor; for delta-elimination activity" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00103" FT BINDING 110 FT /ligand="DNA" FT /ligand_id="ChEBI:CHEBI:16991" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00103" FT BINDING 152 FT /ligand="DNA" FT /ligand_id="ChEBI:CHEBI:16991" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00103" SQ SEQUENCE 271 AA; 29635 MW; 04A97E0DE80A9922 CRC64; MPELPEVETT LRGIAPHVTG RRVTAVTARA AKLRLPIPPE LGERLTGRVI ERVERRAKYL LLRCGDGTAI IHLGMTGTLR VAPAGSPPGK YDHLDLVLDD GRTLRFRDPR KFGLVLWTGS DPLAHPLLAQ LGPEPFPPLF NGSYLFSRSR KRNAAIKLLL MDNRIVVGVG NIYANEALFR ARIHPERAAG SLSEEDCATL ATAVGDVLRD AIAEGDTTLH EFIATEVPSG YFRINPAVYG QTGKPCTVCG TPIARIRLGN RSTWFCPVCQ K //