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FPG_GLOVI
ID   FPG_GLOVI               Reviewed;         284 AA.
AC   Q7NFW7;
DT   15-DEC-2003, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 3.
DT   03-AUG-2022, entry version 119.
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=gll3407;
OS   Gloeobacter violaceus (strain ATCC 29082 / PCC 7421).
OC   Bacteria; Cyanobacteria; Gloeobacteria; Gloeobacterales; Gloeobacteraceae;
OC   Gloeobacter.
OX   NCBI_TaxID=251221;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29082 / PCC 7421;
RX   PubMed=14621292; DOI=10.1093/dnares/10.4.137;
RA   Nakamura Y., Kaneko T., Sato S., Mimuro M., Miyashita H., Tsuchiya T.,
RA   Sasamoto S., Watanabe A., Kawashima K., Kishida Y., Kiyokawa C., Kohara M.,
RA   Matsumoto M., Matsuno A., Nakazaki N., Shimpo S., Takeuchi C., Yamada M.,
RA   Tabata S.;
RT   "Complete genome structure of Gloeobacter violaceus PCC 7421, a
RT   cyanobacterium that lacks thylakoids.";
RL   DNA Res. 10:137-145(2003).
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; BA000045; BAC91348.1; -; Genomic_DNA.
DR   RefSeq; NP_926353.1; NC_005125.1.
DR   RefSeq; WP_011143396.1; NC_005125.1.
DR   AlphaFoldDB; Q7NFW7; -.
DR   SMR; Q7NFW7; -.
DR   STRING; 251221.35213979; -.
DR   EnsemblBacteria; BAC91348; BAC91348; BAC91348.
DR   KEGG; gvi:gll3407; -.
DR   PATRIC; fig|251221.4.peg.3443; -.
DR   eggNOG; COG0266; Bacteria.
DR   HOGENOM; CLU_038423_1_2_3; -.
DR   InParanoid; Q7NFW7; -.
DR   OMA; GVHLRMT; -.
DR   OrthoDB; 1162346at2; -.
DR   PhylomeDB; Q7NFW7; -.
DR   Proteomes; UP000000557; 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: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..284
FT                   /note="Formamidopyrimidine-DNA glycosylase"
FT                   /id="PRO_0000170826"
FT   ZN_FING         244..278
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        61
FT                   /note="Proton donor; for beta-elimination activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00103"
FT   ACT_SITE        268
FT                   /note="Proton donor; for delta-elimination activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00103"
FT   BINDING         95
FT                   /ligand="DNA"
FT                   /ligand_id="ChEBI:CHEBI:16991"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00103"
FT   BINDING         114
FT                   /ligand="DNA"
FT                   /ligand_id="ChEBI:CHEBI:16991"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00103"
FT   BINDING         159
FT                   /ligand="DNA"
FT                   /ligand_id="ChEBI:CHEBI:16991"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00103"
SQ   SEQUENCE   284 AA;  31344 MW;  2179EF18ACADE44B CRC64;
     MPELPEVETL RRDLLIHLPG ERVVGVEVLR SDSVGYPADP AIFIEQMQGQ IFSDRMLRRG
     KYLLLYFARG AALGVHLRMS GRLLWRCGEA PLEPHTRVRI PMASGHELRF EDMRVFGRLW
     LIPVGVPPER VMGGLTRLGP EPFAEMFDGP YLAGRFAGRN QPVKSALLDQ QLVAGVGNIY
     ADEALFSSGI HPALPVGGLD AAALERLHRA VVKVLEAGIA QRGATLRNYT DAQGINGNYA
     GTAWVYGRKG QPCRVCNTPI ERIRLAGRST HFCPTCQRAQ QSVQ
 
 
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