DPO4_RHOBA
ID DPO4_RHOBA Reviewed; 396 AA.
AC Q7USY7;
DT 18-APR-2006, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-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=RB4224;
OS Rhodopirellula baltica (strain DSM 10527 / NCIMB 13988 / SH1).
OC Bacteria; Planctomycetes; Planctomycetia; Pirellulales; Pirellulaceae;
OC Rhodopirellula.
OX NCBI_TaxID=243090;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 10527 / NCIMB 13988 / SH1;
RX PubMed=12835416; DOI=10.1073/pnas.1431443100;
RA Gloeckner F.O., Kube M., Bauer M., Teeling H., Lombardot T., Ludwig W.,
RA Gade D., Beck A., Borzym K., Heitmann K., Rabus R., Schlesner H., Amann R.,
RA Reinhardt R.;
RT "Complete genome sequence of the marine planctomycete Pirellula sp. strain
RT 1.";
RL Proc. Natl. Acad. Sci. U.S.A. 100:8298-8303(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; BX294140; CAD73655.1; -; Genomic_DNA.
DR RefSeq; NP_865969.1; NC_005027.1.
DR RefSeq; WP_011119785.1; NC_005027.1.
DR AlphaFoldDB; Q7USY7; -.
DR SMR; Q7USY7; -.
DR STRING; 243090.RB4224; -.
DR EnsemblBacteria; CAD73655; CAD73655; RB4224.
DR KEGG; rba:RB4224; -.
DR PATRIC; fig|243090.15.peg.1959; -.
DR eggNOG; COG0389; Bacteria.
DR HOGENOM; CLU_012348_1_2_0; -.
DR InParanoid; Q7USY7; -.
DR OMA; KVRRYDF; -.
DR OrthoDB; 442163at2; -.
DR Proteomes; UP000001025; 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..396
FT /note="DNA polymerase IV"
FT /id="PRO_0000232663"
FT DOMAIN 2..182
FT /note="UmuC"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
FT ACT_SITE 101
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
FT BINDING 6
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
FT BINDING 100
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
FT SITE 11
FT /note="Substrate discrimination"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
SQ SEQUENCE 396 AA; 44202 MW; 851AED15B8C2846B CRC64;
MILHVDMDAF YASVEQRDRP ELRGRPVVVG GSEGRGVVTA ASYEAREYGI HSAMPGSRAI
KLCPHADFVR GRLDHYASVG RAVREIFHRF TPVVQPLSLD EAFLDVSGTI RLHGSPREIG
INIRETIRRE LDLPASVGIA PLKFVAKIAS DIGKPNGFVE VPADGVREFL DPLPVSRLWG
VGKVGQTKLQ RLGYRTIADL RVKDLDALKS QLGRWGEHLW NLANGIDRRQ VVVDHLAKGI
GHERTFAEDL SDIESLNAVV SYLSEQTARR LRRARRLAST ITLKYRREDF QTFSRARKLS
TPTDSTLEIL QVAEELLLEM RSREPRSVRL LGISLGGLTD ADAPKQLHLF GEETGENASS
KVDTLSDQIA TKLGKHSLYR ASSHQWVDRK NTKPKN
