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FPG_VIBCH
ID   FPG_VIBCH               Reviewed;         269 AA.
AC   Q9KVC5;
DT   06-JUN-2002, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 3.
DT   03-AUG-2022, entry version 121.
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}; OrderedLocusNames=VC_0221;
OS   Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC   Vibrio.
OX   NCBI_TaxID=243277;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 39315 / El Tor Inaba N16961;
RX   PubMed=10952301; DOI=10.1038/35020000;
RA   Heidelberg J.F., Eisen J.A., Nelson W.C., Clayton R.A., Gwinn M.L.,
RA   Dodson R.J., Haft D.H., Hickey E.K., Peterson J.D., Umayam L.A., Gill S.R.,
RA   Nelson K.E., Read T.D., Tettelin H., Richardson D.L., Ermolaeva M.D.,
RA   Vamathevan J.J., Bass S., Qin H., Dragoi I., Sellers P., McDonald L.A.,
RA   Utterback T.R., Fleischmann R.D., Nierman W.C., White O., Salzberg S.L.,
RA   Smith H.O., Colwell R.R., Mekalanos J.J., Venter J.C., Fraser C.M.;
RT   "DNA sequence of both chromosomes of the cholera pathogen Vibrio
RT   cholerae.";
RL   Nature 406:477-483(2000).
CC   -!- FUNCTION: Involved in base excision repair of DNA damaged by oxidation
CC       or by mutagenic agents. Acts as 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;
CC         Evidence={ECO:0000255|HAMAP-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}.
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DR   EMBL; AE003852; AAF93397.1; -; Genomic_DNA.
DR   PIR; G82347; G82347.
DR   RefSeq; NP_229878.1; NC_002505.1.
DR   RefSeq; WP_001114647.1; NZ_LT906614.1.
DR   AlphaFoldDB; Q9KVC5; -.
DR   SMR; Q9KVC5; -.
DR   STRING; 243277.VC_0221; -.
DR   DNASU; 2614281; -.
DR   EnsemblBacteria; AAF93397; AAF93397; VC_0221.
DR   GeneID; 57738958; -.
DR   KEGG; vch:VC_0221; -.
DR   PATRIC; fig|243277.26.peg.203; -.
DR   eggNOG; COG0266; Bacteria.
DR   HOGENOM; CLU_038423_1_1_6; -.
DR   OMA; GVHLRMT; -.
DR   BioCyc; VCHO:VC0221-MON; -.
DR   Proteomes; UP000000584; Chromosome 1.
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:0019104; F:DNA N-glycosylase activity; IBA:GO_Central.
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   Gene3D; 3.20.190.10; -; 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_S13-like_H2TH.
DR   InterPro; IPR000214; Znf_DNA_glyclase/AP_lyase.
DR   InterPro; IPR010663; Znf_FPG/IleRS.
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; SSF46946; SSF46946; 1.
DR   SUPFAM; SSF81624; SSF81624; 1.
DR   TIGRFAMs; TIGR00577; fpg; 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..269
FT                   /note="Formamidopyrimidine-DNA glycosylase"
FT                   /id="PRO_0000170882"
FT   ZN_FING         235..269
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        57
FT                   /note="Proton donor; for beta-elimination activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00103"
FT   ACT_SITE        259
FT                   /note="Proton donor; for delta-elimination activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00103"
FT   BINDING         90
FT                   /ligand="DNA"
FT                   /ligand_id="ChEBI:CHEBI:16991"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00103"
FT   BINDING         109
FT                   /ligand="DNA"
FT                   /ligand_id="ChEBI:CHEBI:16991"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00103"
FT   BINDING         150
FT                   /ligand="DNA"
FT                   /ligand_id="ChEBI:CHEBI:16991"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00103"
SQ   SEQUENCE   269 AA;  30037 MW;  677A73179E5F8887 CRC64;
     MPELPEVEVS RLGISPHLVG GTIQSLVLRT PKLRWPIPQE LKQLEGQTIL AIHRRAKYLI
     IETAVGSAIV HLGMSGSLRI LDGDFPAAKH DHVDLVMTSG KRLRYNDPRR FGAWLWCAPD
     ESHEVLGRLG PEPLTEAFNA EYMMDKARNK RIAVKAFIMD NAAVVGVGNI YANESLFTSR
     LHPLRPAHSL SLEEWQTLVA NIKQVLQVAI KQGGTTLKDF TQSDGKPGYF AQELQVYGKA
     KQPCPHCGEP LCEQKIAQRN TFFCPQCQH
 
 
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