FPG_STRPN
ID FPG_STRPN Reviewed; 274 AA.
AC Q97R61;
DT 06-JUN-2002, integrated into UniProtKB/Swiss-Prot.
DT 23-JAN-2007, sequence version 3.
DT 03-AUG-2022, entry version 124.
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=SP_0970;
OS Streptococcus pneumoniae serotype 4 (strain ATCC BAA-334 / TIGR4).
OC Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC Streptococcus.
OX NCBI_TaxID=170187;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-334 / TIGR4;
RX PubMed=11463916; DOI=10.1126/science.1061217;
RA Tettelin H., Nelson K.E., Paulsen I.T., Eisen J.A., Read T.D.,
RA Peterson S.N., Heidelberg J.F., DeBoy R.T., Haft D.H., Dodson R.J.,
RA Durkin A.S., Gwinn M.L., Kolonay J.F., Nelson W.C., Peterson J.D.,
RA Umayam L.A., White O., Salzberg S.L., Lewis M.R., Radune D.,
RA Holtzapple E.K., Khouri H.M., Wolf A.M., Utterback T.R., Hansen C.L.,
RA McDonald L.A., Feldblyum T.V., Angiuoli S.V., Dickinson T., Hickey E.K.,
RA Holt I.E., Loftus B.J., Yang F., Smith H.O., Venter J.C., Dougherty B.A.,
RA Morrison D.A., Hollingshead S.K., Fraser C.M.;
RT "Complete genome sequence of a virulent isolate of Streptococcus
RT pneumoniae.";
RL Science 293:498-506(2001).
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; AE005672; AAK75091.1; -; Genomic_DNA.
DR PIR; B95112; B95112.
DR RefSeq; WP_001114592.1; NZ_AKVY01000001.1.
DR AlphaFoldDB; Q97R61; -.
DR SMR; Q97R61; -.
DR STRING; 170187.SP_0970; -.
DR EnsemblBacteria; AAK75091; AAK75091; SP_0970.
DR KEGG; spn:SP_0970; -.
DR eggNOG; COG0266; Bacteria.
DR OMA; GVHLRMT; -.
DR BioCyc; SPNE170187:G1FZB-998-MON; -.
DR Proteomes; UP000000585; 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..274
FT /note="Formamidopyrimidine-DNA glycosylase"
FT /id="PRO_0000170869"
FT ZN_FING 238..272
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 262
FT /note="Proton donor; for delta-elimination activity"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00103"
FT BINDING 91
FT /ligand="DNA"
FT /ligand_id="ChEBI:CHEBI:16991"
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"
SQ SEQUENCE 274 AA; 31216 MW; B3B7447BD762507C CRC64;
MPELPEVETV CRGLEKLIIG KKISSIEIRY PKMIKTDLEE FQRELPSQII ESMGRRGKYL
LFYLTDKVLI SHLRMEGKYF YYPDQGPERK HAHVFFHFED GGTLVYEDVR KFGTMELLVP
DLLDVYFISK KLGPEPSEQD FDLQVFQSAL AKSKKPIKSH LLDQTLVAGL GNIYVDEVLW
RAQVHPARPS QTLTAEEATA IHDQTIAVLG QAVEKGGSTI RTYTNAFGED GSMQDFHQVY
DKTGQECVRC GTIIEKIQLG GRGTHFCPNC QRRD
