DPO4_VIBCH
ID DPO4_VIBCH Reviewed; 360 AA.
AC Q9KPS5;
DT 02-AUG-2002, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-2000, sequence version 1.
DT 03-AUG-2022, entry version 119.
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=VC_2287;
OS Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC Vibrio.
OX NCBI_TaxID=243277;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 39315 / El Tor Inaba N16961;
RX PubMed=10952301; DOI=10.1038/35020000;
RA Heidelberg J.F., Eisen J.A., Nelson W.C., Clayton R.A., Gwinn M.L.,
RA Dodson R.J., Haft D.H., Hickey E.K., Peterson J.D., Umayam L.A., Gill S.R.,
RA Nelson K.E., Read T.D., Tettelin H., Richardson D.L., Ermolaeva M.D.,
RA Vamathevan J.J., Bass S., Qin H., Dragoi I., Sellers P., McDonald L.A.,
RA Utterback T.R., Fleischmann R.D., Nierman W.C., White O., Salzberg S.L.,
RA Smith H.O., Colwell R.R., Mekalanos J.J., Venter J.C., Fraser C.M.;
RT "DNA sequence of both chromosomes of the cholera pathogen Vibrio
RT cholerae.";
RL Nature 406:477-483(2000).
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; AE003852; AAF95431.1; -; Genomic_DNA.
DR PIR; G82093; G82093.
DR RefSeq; NP_231918.1; NC_002505.1.
DR RefSeq; WP_001153985.1; NZ_LT906614.1.
DR AlphaFoldDB; Q9KPS5; -.
DR SMR; Q9KPS5; -.
DR STRING; 243277.VC_2287; -.
DR DNASU; 2613209; -.
DR EnsemblBacteria; AAF95431; AAF95431; VC_2287.
DR GeneID; 57740908; -.
DR KEGG; vch:VC_2287; -.
DR PATRIC; fig|243277.26.peg.2181; -.
DR eggNOG; COG0389; Bacteria.
DR HOGENOM; CLU_012348_1_2_6; -.
DR OMA; CKPDGLL; -.
DR BioCyc; VCHO:VC2287-MON; -.
DR Proteomes; UP000000584; 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; IBA:GO_Central.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0006261; P:DNA-templated DNA replication; IEA:UniProtKB-UniRule.
DR GO; GO:0042276; P:error-prone translesion synthesis; IBA:GO_Central.
DR GO; GO:0009432; P:SOS response; IBA:GO_Central.
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; IPR022880; DNApol_IV.
DR InterPro; IPR024728; PolY_HhH_motif.
DR InterPro; IPR043128; Rev_trsase/Diguanyl_cyclase.
DR InterPro; IPR001126; UmuC.
DR Pfam; PF00817; IMS; 1.
DR Pfam; PF11798; IMS_HHH; 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; Reference proteome; Transferase.
FT CHAIN 1..360
FT /note="DNA polymerase IV"
FT /id="PRO_0000173962"
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 360 AA; 40891 MW; C7C9A892F50D36F6 CRC64;
MQDRIRKIIH VDMDCFFAAV EMRDNPAYRE IALAVGGHEK QRGVISTCNY QARKFGVRSA
MPTAQALKLC PQLHVVPGRM SVYKSVSQQI QTIFQRYTSL IEPLSLDEAY LDVSESTAYQ
GSATLIAQAI RRDIWQELNL TASAGVAPIK FLAKVASDLN KPDGLYVVTP DKVQEMVDSL
PLEKIPGVGK VALEKLHQAG LYVGADVRRA DYRKLLHQFG RLGASLWKKS HGIDEREVVT
ERERKSVGVE YTFSQNISTF QECWQVIEQK LYPELDARLS RAHPQRGIIK QGIKVKFADF
QQTTIEHVHP ALELDYFHEL LEQVLTRQQG REIRLLGLSV MLKPELQMKQ LSMFPSDGWQ
