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DPO4_VIBVU
ID   DPO4_VIBVU              Reviewed;         354 AA.
AC   Q8DBI7;
DT   25-JUL-2003, integrated into UniProtKB/Swiss-Prot.
DT   25-JUL-2003, sequence version 2.
DT   03-AUG-2022, entry version 122.
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=VV1_1830;
OS   Vibrio vulnificus (strain CMCP6).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC   Vibrio.
OX   NCBI_TaxID=216895;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CMCP6;
RA   Rhee J.H., Kim S.Y., Chung S.S., Kim J.J., Moon Y.H., Jeong H., Choy H.E.;
RT   "Complete genome sequence of Vibrio vulnificus CMCP6.";
RL   Submitted (DEC-2002) to the EMBL/GenBank/DDBJ databases.
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; AE016795; AAO10236.2; -; Genomic_DNA.
DR   RefSeq; WP_011079736.1; NC_004459.3.
DR   AlphaFoldDB; Q8DBI7; -.
DR   SMR; Q8DBI7; -.
DR   EnsemblBacteria; AAO10236; AAO10236; VV1_1830.
DR   KEGG; vvu:VV1_1830; -.
DR   HOGENOM; CLU_012348_1_2_6; -.
DR   OMA; VKKFHGV; -.
DR   Proteomes; UP000002275; Chromosome 1.
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..354
FT                   /note="DNA polymerase IV"
FT                   /id="PRO_0000173964"
FT   DOMAIN          8..189
FT                   /note="UmuC"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
FT   ACT_SITE        108
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
FT   BINDING         12
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
FT   BINDING         107
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
FT   SITE            17
FT                   /note="Substrate discrimination"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
SQ   SEQUENCE   354 AA;  40382 MW;  0927ED457E635F15 CRC64;
     MSTQMRKIIH IDMDCFYAAV EMRDNPNFRS RPLAVGGHEK QRGVISTCNY EARKFGVRSA
     MPTAQALKLC PSLLVVPGRM QVYKEVSTHI RSIFSRYTHL IEPLSLDEAY LDVTDSTQCH
     GSATLIAEAI RRDIWNELQL TASAGVAPIK FLAKVASDMN KPNGQFVIPP EQVQSVIDTL
     PLQKIPGVGK VSLEKLNQAG LYVCQDVKNS DYRQLLKQFG RLGASLWQRS HGIDEREVIV
     ERERKSVGVE RTFTQNIVTY EQCWQVIEEK LFPELAIRLE KANPEKAIIK QGIKMKFADF
     QLTTIEHVHH ELELAYFREL LQDILQRQKG REIRLLGLSV MLKPEEQARQ LSLL
 
 
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