DPO4_SHEON
ID DPO4_SHEON Reviewed; 357 AA.
AC Q8EHU9;
DT 20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT 01-MAR-2003, sequence version 1.
DT 03-AUG-2022, entry version 106.
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=SO_1114;
OS Shewanella oneidensis (strain MR-1).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Alteromonadales;
OC Shewanellaceae; Shewanella.
OX NCBI_TaxID=211586;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MR-1;
RX PubMed=12368813; DOI=10.1038/nbt749;
RA Heidelberg J.F., Paulsen I.T., Nelson K.E., Gaidos E.J., Nelson W.C.,
RA Read T.D., Eisen J.A., Seshadri R., Ward N.L., Methe B.A., Clayton R.A.,
RA Meyer T., Tsapin A., Scott J., Beanan M.J., Brinkac L.M., Daugherty S.C.,
RA DeBoy R.T., Dodson R.J., Durkin A.S., Haft D.H., Kolonay J.F., Madupu R.,
RA Peterson J.D., Umayam L.A., White O., Wolf A.M., Vamathevan J.J.,
RA Weidman J.F., Impraim M., Lee K., Berry K.J., Lee C., Mueller J.,
RA Khouri H.M., Gill J., Utterback T.R., McDonald L.A., Feldblyum T.V.,
RA Smith H.O., Venter J.C., Nealson K.H., Fraser C.M.;
RT "Genome sequence of the dissimilatory metal ion-reducing bacterium
RT Shewanella oneidensis.";
RL Nat. Biotechnol. 20:1118-1123(2002).
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; AE014299; AAN54184.1; -; Genomic_DNA.
DR RefSeq; NP_716739.1; NC_004347.2.
DR RefSeq; WP_011071357.1; NZ_CP053946.1.
DR AlphaFoldDB; Q8EHU9; -.
DR SMR; Q8EHU9; -.
DR STRING; 211586.SO_1114; -.
DR PaxDb; Q8EHU9; -.
DR KEGG; son:SO_1114; -.
DR PATRIC; fig|211586.12.peg.1069; -.
DR eggNOG; COG0389; Bacteria.
DR HOGENOM; CLU_012348_1_2_6; -.
DR OMA; KVRRYDF; -.
DR OrthoDB; 442163at2; -.
DR PhylomeDB; Q8EHU9; -.
DR BioCyc; SONE211586:G1GMP-1026-MON; -.
DR Proteomes; UP000008186; 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; 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; IPR017961; DNA_pol_Y-fam_little_finger.
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; PF11799; IMS_C; 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..357
FT /note="DNA polymerase IV"
FT /id="PRO_1000084933"
FT DOMAIN 4..185
FT /note="UmuC"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
FT ACT_SITE 104
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
FT BINDING 8
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
FT BINDING 103
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
FT SITE 13
FT /note="Substrate discrimination"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
SQ SEQUENCE 357 AA; 39613 MW; 2B8D0DDB0869821F CRC64;
MRKIIHVDMD CYFAAVEMRD FPEYRGKPLA VGGSRERRGV ISTCNYEARR FGVRSAMATA
YAQKLCPDLI LVPGRMQVYK DVSSQIRAIF SRYTELIEPL SLDEAYLDVS DCKLHKGSAT
LIAEAIRRDI LAETGLTASA GVAPVKFLAK VASDLNKPNG QYVIPPDKVP EFIRTLSLRQ
IPGVGKVTAE KLSSLGLNTC GDVQTYPKQE LITRFGKFGA VLIERAQGID DRGLSVSRER
KSVGVETTLA QDIYTLEQCQ QVMPGLIQEL STRLSRSAKD RQIHKQVVKL KFSDFKQTTI
EHRSNDVSVM MFYELLAQAI ARQDGRGIRL LGVAVGLSDK SLISEVDPLQ TQLVLSI
