ID FPG_MYCGE Reviewed; 284 AA. AC P55825; DT 01-NOV-1997, integrated into UniProtKB/Swiss-Prot. DT 23-JAN-2007, sequence version 3. DT 10-JUN-2026, entry version 157. DE RecName: Full=Formamidopyrimidine-DNA glycosylase; DE Short=Fapy-DNA glycosylase; DE EC=3.2.2.23; DE AltName: Full=DNA-(apurinic or apyrimidinic site) lyase MutM; DE Short=AP lyase MutM; DE EC=4.2.99.18; GN Name=mutM; Synonyms=fpg; OrderedLocusNames=MG262.1; OS Mycoplasmoides genitalium (strain ATCC 33530 / DSM 19775 / NCTC 10195 / OS G37) (Mycoplasma genitalium). OC Bacteria; Bacillati; Mycoplasmatota; Mycoplasmoidales; Mycoplasmoidaceae; OC Mycoplasmoides. OX NCBI_TaxID=243273; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=ATCC 33530 / DSM 19775 / NCTC 10195 / G37; RX PubMed=7569993; DOI=10.1126/science.270.5235.397; RA Fraser C.M., Gocayne J.D., White O., Adams M.D., Clayton R.A., RA Fleischmann R.D., Bult C.J., Kerlavage A.R., Sutton G.G., Kelley J.M., RA Fritchman J.L., Weidman J.F., Small K.V., Sandusky M., Fuhrmann J.L., RA Nguyen D.T., Utterback T.R., Saudek D.M., Phillips C.A., Merrick J.M., RA Tomb J.-F., Dougherty B.A., Bott K.F., Hu P.-C., Lucier T.S., RA Peterson S.N., Smith H.O., Hutchison C.A. III, Venter J.C.; RT "The minimal gene complement of Mycoplasma genitalium."; RL Science 270:397-403(1995). RN [2] RP IDENTIFICATION. RX PubMed=8638118; DOI=10.1126/science.271.5253.1302b; RA Robison K., Gilbert W., Church G.M.; RT "More Haemophilus and Mycoplasma genes."; RL Science 271:1302-1303(1996). 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 (By CC similarity). {ECO:0000250}. 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 -!- 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'-phospho-2'- CC 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; CC -!- COFACTOR: CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105; Evidence={ECO:0000250}; CC Note=Binds 1 zinc ion per subunit. {ECO:0000250}; CC -!- SUBUNIT: Monomer. {ECO:0000250}. CC -!- SIMILARITY: Belongs to the FPG family. {ECO:0000305}. 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; L43967; AAC71484.1; -; Genomic_DNA. DR RefSeq; WP_010869400.1; NC_000908.2. DR AlphaFoldDB; P55825; -. DR SMR; P55825; -. DR FunCoup; P55825; 137. DR STRING; 243273.MG_498; -. DR GeneID; 99647127; -. DR KEGG; mge:MG_498; -. DR eggNOG; COG0266; Bacteria. DR HOGENOM; CLU_038423_1_3_14; -. DR InParanoid; P55825; -. DR OrthoDB; 9800855at2; -. DR BioCyc; MGEN243273:G1GJ2-318-MONOMER; -. DR Proteomes; UP000000807; 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:0003690; F:double-stranded DNA binding; IEA:UniProtKB-ARBA. 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 FunFam; 1.10.8.50:FF:000003; Formamidopyrimidine-DNA glycosylase; 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; IPR015887; DNA_glyclase_Znf_dom_DNA_BS. DR InterPro; IPR012319; FPG_cat. DR InterPro; IPR020629; FPG_Glyclase. DR InterPro; IPR035937; FPG_N. DR InterPro; IPR015886; H2TH_FPG. 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 NCBIfam; NF002211; PRK01103.1; 1. DR PANTHER; PTHR22993; FORMAMIDOPYRIMIDINE-DNA GLYCOSYLASE; 1. DR PANTHER; PTHR22993:SF9; 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..284 FT /note="Formamidopyrimidine-DNA glycosylase" FT /id="PRO_0000170836" FT ZN_FING 239..273 FT /note="FPG-type" FT ACT_SITE 2 FT /note="Schiff-base intermediate with DNA" FT /evidence="ECO:0000250" FT ACT_SITE 3 FT /note="Proton donor" FT /evidence="ECO:0000250" FT ACT_SITE 59 FT /note="Proton donor; for beta-elimination activity" FT /evidence="ECO:0000250" FT ACT_SITE 263 FT /note="Proton donor; for delta-elimination activity" FT /evidence="ECO:0000250" FT BINDING 94 FT /ligand="DNA" FT /ligand_id="ChEBI:CHEBI:16991" FT /evidence="ECO:0000250" FT BINDING 113 FT /ligand="DNA" FT /ligand_id="ChEBI:CHEBI:16991" FT /evidence="ECO:0000250" SQ SEQUENCE 284 AA; 32749 MW; 0D04A1F6082FF2FC CRC64; MPELPEVTTV INELKETVLN KPLDQVQVNL RKVLKNIDPQ LLNKQLKNQF FTDIKRKGKY IIFLLSNGLY LVSHLRMEGK YFFEERGSKF NQKHVLVEFH FDDGSQLNYH DTRQFGTFHL YEKLEQAAQL NKLAFDPLEA GFDYRKIFQK AQNSKRKVKT FILDQTVISG IGNIYADEIL FASKINPETM VDQLTIKEIE ILCKNATKIL AKAIVMKGTT ISSFSFKKDH TGGYQNFLKV HTKKDQPCSV CNQLIVKKKI NGRGSYFCLN CQKITTKVST KLNP //