ID   MUG_ECOL6               Reviewed;         168 AA.
AC   P0A9H2; P43342;
DT   19-JUL-2005, integrated into UniProtKB/Swiss-Prot.
DT   19-JUL-2005, sequence version 1.
DT   03-AUG-2022, entry version 89.
DE   RecName: Full=G/U mismatch-specific DNA glycosylase {ECO:0000255|HAMAP-Rule:MF_01956};
DE            EC=3.2.2.28 {ECO:0000255|HAMAP-Rule:MF_01956};
DE   AltName: Full=Double-strand-specific uracil glycosylase {ECO:0000255|HAMAP-Rule:MF_01956};
DE   AltName: Full=Mismatch-specific uracil DNA-glycosylase {ECO:0000255|HAMAP-Rule:MF_01956};
DE            Short=MUG {ECO:0000255|HAMAP-Rule:MF_01956};
GN   Name=mug {ECO:0000255|HAMAP-Rule:MF_01956}; OrderedLocusNames=c3822;
OS   Escherichia coli O6:H1 (strain CFT073 / ATCC 700928 / UPEC).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=199310;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CFT073 / ATCC 700928 / UPEC;
RX   PubMed=12471157; DOI=10.1073/pnas.252529799;
RA   Welch R.A., Burland V., Plunkett G. III, Redford P., Roesch P., Rasko D.,
RA   Buckles E.L., Liou S.-R., Boutin A., Hackett J., Stroud D., Mayhew G.F.,
RA   Rose D.J., Zhou S., Schwartz D.C., Perna N.T., Mobley H.L.T.,
RA   Donnenberg M.S., Blattner F.R.;
RT   "Extensive mosaic structure revealed by the complete genome sequence of
RT   uropathogenic Escherichia coli.";
RL   Proc. Natl. Acad. Sci. U.S.A. 99:17020-17024(2002).
CC   -!- FUNCTION: Excises ethenocytosine and uracil, which can arise by
CC       alkylation or deamination of cytosine, respectively, from the
CC       corresponding mispairs with guanine in ds-DNA. It is capable of
CC       hydrolyzing the carbon-nitrogen bond between the sugar-phosphate
CC       backbone of the DNA and the mispaired base. The complementary strand
CC       guanine functions in substrate recognition. Required for DNA damage
CC       lesion repair in stationary-phase cells. {ECO:0000255|HAMAP-
CC       Rule:MF_01956}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Specifically hydrolyzes mismatched double-stranded DNA and
CC         polynucleotides, releasing free uracil.; EC=3.2.2.28;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01956};
CC   -!- SUBUNIT: Binds DNA as a monomer. {ECO:0000255|HAMAP-Rule:MF_01956}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01956}.
CC   -!- SIMILARITY: Belongs to the uracil-DNA glycosylase (UDG) superfamily.
CC       TDG/mug family. {ECO:0000255|HAMAP-Rule:MF_01956}.
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DR   EMBL; AE014075; AAN82267.1; -; Genomic_DNA.
DR   RefSeq; WP_000228937.1; NC_004431.1.
DR   AlphaFoldDB; P0A9H2; -.
DR   SMR; P0A9H2; -.
DR   STRING; 199310.c3822; -.
DR   EnsemblBacteria; AAN82267; AAN82267; c3822.
DR   GeneID; 66673033; -.
DR   KEGG; ecc:c3822; -.
DR   eggNOG; COG3663; Bacteria.
DR   HOGENOM; CLU_042829_3_1_6; -.
DR   OMA; FWPVLHL; -.
DR   BioCyc; ECOL199310:C3822-MON; -.
DR   Proteomes; UP000001410; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0008263; F:pyrimidine-specific mismatch base pair DNA N-glycosylase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006285; P:base-excision repair, AP site formation; IEA:UniProtKB-UniRule.
DR   CDD; cd10028; UDG-F2_TDG_MUG; 1.
DR   Gene3D; 3.40.470.10; -; 1.
DR   HAMAP; MF_01956; MUG; 1.
DR   InterPro; IPR015637; MUG/TDG.
DR   InterPro; IPR023502; MUG_bact.
DR   InterPro; IPR005122; Uracil-DNA_glycosylase-like.
DR   InterPro; IPR036895; Uracil-DNA_glycosylase-like_sf.
DR   PANTHER; PTHR12159; PTHR12159; 1.
DR   Pfam; PF03167; UDG; 1.
DR   SUPFAM; SSF52141; SSF52141; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; DNA damage; DNA excision; DNA repair; DNA-binding; Hydrolase.
FT   CHAIN           1..168
FT                   /note="G/U mismatch-specific DNA glycosylase"
FT                   /id="PRO_0000185775"
SQ   SEQUENCE   168 AA;  18673 MW;  F1CD9B2E2030D6A7 CRC64;
     MVEDILAPGL RVVFCGINPG LSSAGTGFPF AHPANRFWKV IYQAGFTDRQ LKPQEAQHLL
     DYRCGVTKLV DRPTVQANEV SKQELHAGGR KLIEKIEDYQ PQALAILGKQ AYEQGFSQRG
     AQWGKQTLTI GSTQIWVLPN PSGLSRVSLE KLVEAYRELD QALVVRGR