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FPG_SHEB5
ID   FPG_SHEB5               Reviewed;         271 AA.
AC   A3CYP7;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   20-MAR-2007, sequence version 1.
DT   03-AUG-2022, entry version 84.
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=Sbal_0075;
OS   Shewanella baltica (strain OS155 / ATCC BAA-1091).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Alteromonadales;
OC   Shewanellaceae; Shewanella.
OX   NCBI_TaxID=325240;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=OS155 / ATCC BAA-1091;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA   Sims D.R., Brettin T., Bruce D., Han C., Tapia R., Brainard J., Schmutz J.,
RA   Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N., Brettar I.,
RA   Klappenbach J., Konstantinidis K., Rodrigues J., Tiedje J., Richardson P.;
RT   "Complete sequence of chromosome of Shewanella baltica OS155.";
RL   Submitted (FEB-2007) to the EMBL/GenBank/DDBJ databases.
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; CP000563; ABN59610.1; -; Genomic_DNA.
DR   RefSeq; WP_011845381.1; NC_009052.1.
DR   AlphaFoldDB; A3CYP7; -.
DR   SMR; A3CYP7; -.
DR   STRING; 325240.Sbal_0075; -.
DR   EnsemblBacteria; ABN59610; ABN59610; Sbal_0075.
DR   KEGG; sbl:Sbal_0075; -.
DR   HOGENOM; CLU_038423_1_1_6; -.
DR   OMA; GVHLRMT; -.
DR   Proteomes; UP000001557; Chromosome.
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:0008534; F:oxidized purine nucleobase lesion DNA N-glycosylase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0006284; P:base-excision repair; IEA:InterPro.
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; Zinc; 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_1000008770"
FT   ZN_FING         236..270
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        260
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         151
FT                   /ligand="DNA"
FT                   /ligand_id="ChEBI:CHEBI:16991"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00103"
SQ   SEQUENCE   271 AA;  29697 MW;  0BB357D1698F2820 CRC64;
     MPELPEVEVT RQGIAPFLVE QTVVDLVIRN GSLRWPVPDI AKQIIGQVIR QVRRRAKYLL
     IDTDAGTSIV HLGMSGSLRI LPHDTPVEKH DHIDLVLANG RILRFNDPRR FGAWLWCELP
     EEAHPLLAKL GPEPLTQAFN VAQLAAALAG KKKAIKLCLM DNHIVVGVGN IYANEALFAA
     GIHPEAEAGK IDIERLTVLV AEVKQILAHA IKQGGTTLKD FTNADGKPGY FAQKLHVYGR
     GGETCTSCGN LLSEIRLGQR TTVFCGICQT R
 
 
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