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DPO4_STAES
ID   DPO4_STAES              Reviewed;         356 AA.
AC   Q8CNP3;
DT   31-OCT-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2003, sequence version 1.
DT   03-AUG-2022, entry version 111.
DE   RecName: Full=DNA polymerase IV {ECO:0000255|HAMAP-Rule:MF_01113};
DE            Short=Pol IV {ECO:0000255|HAMAP-Rule:MF_01113};
DE            EC=2.7.7.7 {ECO:0000255|HAMAP-Rule:MF_01113};
GN   Name=dinB {ECO:0000255|HAMAP-Rule:MF_01113}; OrderedLocusNames=SE_1580;
OS   Staphylococcus epidermidis (strain ATCC 12228 / FDA PCI 1200).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;
OC   Staphylococcus.
OX   NCBI_TaxID=176280;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 12228 / FDA PCI 1200;
RX   PubMed=12950922; DOI=10.1046/j.1365-2958.2003.03671.x;
RA   Zhang Y.-Q., Ren S.-X., Li H.-L., Wang Y.-X., Fu G., Yang J., Qin Z.-Q.,
RA   Miao Y.-G., Wang W.-Y., Chen R.-S., Shen Y., Chen Z., Yuan Z.-H.,
RA   Zhao G.-P., Qu D., Danchin A., Wen Y.-M.;
RT   "Genome-based analysis of virulence genes in a non-biofilm-forming
RT   Staphylococcus epidermidis strain (ATCC 12228).";
RL   Mol. Microbiol. 49:1577-1593(2003).
CC   -!- FUNCTION: Poorly processive, error-prone DNA polymerase involved in
CC       untargeted mutagenesis. Copies undamaged DNA at stalled replication
CC       forks, which arise in vivo from mismatched or misaligned primer ends.
CC       These misaligned primers can be extended by PolIV. Exhibits no 3'-5'
CC       exonuclease (proofreading) activity. May be involved in translesional
CC       synthesis, in conjunction with the beta clamp from PolIII.
CC       {ECO:0000255|HAMAP-Rule:MF_01113}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a 2'-deoxyribonucleoside 5'-triphosphate + DNA(n) =
CC         diphosphate + DNA(n+1); Xref=Rhea:RHEA:22508, Rhea:RHEA-COMP:17339,
CC         Rhea:RHEA-COMP:17340, ChEBI:CHEBI:33019, ChEBI:CHEBI:61560,
CC         ChEBI:CHEBI:173112; EC=2.7.7.7; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01113};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01113};
CC       Note=Binds 2 magnesium ions per subunit. {ECO:0000255|HAMAP-
CC       Rule:MF_01113};
CC   -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_01113}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01113}.
CC   -!- SIMILARITY: Belongs to the DNA polymerase type-Y family.
CC       {ECO:0000255|HAMAP-Rule:MF_01113}.
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DR   EMBL; AE015929; AAO05179.1; -; Genomic_DNA.
DR   RefSeq; NP_765135.1; NC_004461.1.
DR   RefSeq; WP_001830390.1; NZ_WBME01000010.1.
DR   AlphaFoldDB; Q8CNP3; -.
DR   SMR; Q8CNP3; -.
DR   STRING; 176280.SE_1580; -.
DR   EnsemblBacteria; AAO05179; AAO05179; SE_1580.
DR   GeneID; 50018320; -.
DR   KEGG; sep:SE_1580; -.
DR   PATRIC; fig|176280.10.peg.1544; -.
DR   eggNOG; COG0389; Bacteria.
DR   HOGENOM; CLU_012348_1_2_9; -.
DR   OMA; KVRRYDF; -.
DR   Proteomes; UP000001411; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0003684; F:damaged DNA binding; IEA:InterPro.
DR   GO; GO:0003887; F:DNA-directed DNA polymerase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0006281; P:DNA repair; IEA:UniProtKB-UniRule.
DR   GO; GO:0006261; P:DNA-templated DNA replication; IEA:UniProtKB-UniRule.
DR   GO; GO:0009432; P:SOS response; IEA:UniProt.
DR   CDD; cd03586; PolY_Pol_IV_kappa; 1.
DR   Gene3D; 3.30.1490.100; -; 1.
DR   Gene3D; 3.30.70.270; -; 1.
DR   HAMAP; MF_01113; DNApol_IV; 1.
DR   InterPro; IPR043502; DNA/RNA_pol_sf.
DR   InterPro; IPR036775; DNA_pol_Y-fam_lit_finger_sf.
DR   InterPro; IPR017961; DNA_pol_Y-fam_little_finger.
DR   InterPro; IPR022880; DNApol_IV.
DR   InterPro; IPR043128; Rev_trsase/Diguanyl_cyclase.
DR   InterPro; IPR001126; UmuC.
DR   Pfam; PF00817; IMS; 1.
DR   Pfam; PF11799; IMS_C; 1.
DR   SUPFAM; SSF100879; SSF100879; 1.
DR   SUPFAM; SSF56672; SSF56672; 1.
DR   PROSITE; PS50173; UMUC; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; DNA damage; DNA repair; DNA replication; DNA-binding;
KW   DNA-directed DNA polymerase; Magnesium; Metal-binding; Mutator protein;
KW   Nucleotidyltransferase; Transferase.
FT   CHAIN           1..356
FT                   /note="DNA polymerase IV"
FT                   /id="PRO_0000173949"
FT   DOMAIN          6..187
FT                   /note="UmuC"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
FT   ACT_SITE        106
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
FT   BINDING         10
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
FT   BINDING         105
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
FT   SITE            15
FT                   /note="Substrate discrimination"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
SQ   SEQUENCE   356 AA;  40669 MW;  228B19EBA08AAEA5 CRC64;
     MTERRIIHID MDYFFAQVEM RDNPKLKGKP VIVGGKASHR GVVSTASYEA RAYGVHSAMP
     MTQAHKLCPN GYYVTSRFDT YREVSGQIMK IFRSYTELVE PMSLDEAYLD ITHLVRPDLP
     ASTIANYIRR DIYEVTRLTA SAGVSYNKFL AKLASGMNKP NGLTVIDYNN VHEILMQLDI
     GDFPGVGKAS KKKMHQHHIY TGQDLYNKDE FELIRLFGKR GRGLYNKARG IDHNEVKASR
     VRKSVGTERT FSTDVNDDDV ILRKIRELSG KTAERLNKIQ KSGKTVTVKI KTYQYETISK
     QKSLRDPIRT ETDIYNIAYT LYNDLKDPEI PIRLIGVTVG SLEQSDFKNL TIYDFI
 
 
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