ID A0A024HE18_PSEKB Unreviewed; 353 AA.
AC A0A024HE18;
DT 09-JUL-2014, integrated into UniProtKB/TrEMBL.
DT 09-JUL-2014, sequence version 1.
DT 27-MAR-2024, entry version 43.
DE RecName: Full=DNA polymerase IV {ECO:0000256|HAMAP-Rule:MF_01113};
DE Short=Pol IV {ECO:0000256|HAMAP-Rule:MF_01113};
DE EC=2.7.7.7 {ECO:0000256|HAMAP-Rule:MF_01113};
GN Name=dinB {ECO:0000256|HAMAP-Rule:MF_01113,
GN ECO:0000313|EMBL:CDF82708.1};
GN ORFNames=PKB_1345 {ECO:0000313|EMBL:CDF82708.1};
OS Pseudomonas knackmussii (strain DSM 6978 / LMG 23759 / B13).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Pseudomonadales;
OC Pseudomonadaceae; Pseudomonas.
OX NCBI_TaxID=1301098 {ECO:0000313|EMBL:CDF82708.1, ECO:0000313|Proteomes:UP000025241};
RN [1] {ECO:0000313|EMBL:CDF82708.1, ECO:0000313|Proteomes:UP000025241}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=B13 {ECO:0000313|EMBL:CDF82708.1,
RC ECO:0000313|Proteomes:UP000025241};
RA Linke B.;
RL Submitted (MAR-2013) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:CDF82708.1, ECO:0000313|Proteomes:UP000025241}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=B13 {ECO:0000313|EMBL:CDF82708.1,
RC ECO:0000313|Proteomes:UP000025241};
RA Miyazaki R., Bertelli C., Falquet L., Robinson-Rechavi M., Gharib W.,
RA Roy S., Van der Meer J.R.;
RT "Genome sequence of the 3-chlorobenzoate degrading bacterium Pseudomonas
RT knackmussii B13 shows multiple evidence for horizontal gene transfer.";
RL Submitted (MAY-2014) 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:0000256|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:0000256|HAMAP-
CC Rule:MF_01113};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01113};
CC Note=Binds 2 magnesium ions per subunit. {ECO:0000256|HAMAP-
CC Rule:MF_01113};
CC -!- SUBUNIT: Monomer. {ECO:0000256|HAMAP-Rule:MF_01113}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01113}.
CC -!- SIMILARITY: Belongs to the DNA polymerase type-Y family.
CC {ECO:0000256|ARBA:ARBA00010945, ECO:0000256|HAMAP-Rule:MF_01113}.
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DR EMBL; HG322950; CDF82708.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A024HE18; -.
DR STRING; 1301098.PKB_1345; -.
DR KEGG; pkc:PKB_1345; -.
DR PATRIC; fig|1301098.3.peg.1337; -.
DR eggNOG; COG0389; Bacteria.
DR HOGENOM; CLU_012348_1_2_6; -.
DR OrthoDB; 9808813at2; -.
DR Proteomes; UP000025241; 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; 3.30.70.270; -; 1.
DR Gene3D; 3.40.1170.60; -; 1.
DR Gene3D; 1.10.150.20; 5' to 3' exonuclease, C-terminal subdomain; 1.
DR Gene3D; 3.30.1490.100; DNA polymerase, Y-family, little finger domain; 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 PANTHER; PTHR11076:SF33; DNA POLYMERASE KAPPA; 1.
DR PANTHER; PTHR11076; DNA REPAIR POLYMERASE UMUC / TRANSFERASE FAMILY MEMBER; 1.
DR Pfam; PF00817; IMS; 1.
DR Pfam; PF11799; IMS_C; 1.
DR Pfam; PF11798; IMS_HHH; 1.
DR SUPFAM; SSF56672; DNA/RNA polymerases; 1.
DR SUPFAM; SSF100879; Lesion bypass DNA polymerase (Y-family), little finger domain; 1.
DR PROSITE; PS50173; UMUC; 1.
PE 3: Inferred from homology;
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01113};
KW DNA damage {ECO:0000256|HAMAP-Rule:MF_01113};
KW DNA repair {ECO:0000256|HAMAP-Rule:MF_01113};
KW DNA replication {ECO:0000256|HAMAP-Rule:MF_01113};
KW DNA-binding {ECO:0000256|HAMAP-Rule:MF_01113};
KW DNA-directed DNA polymerase {ECO:0000256|ARBA:ARBA00022932,
KW ECO:0000256|HAMAP-Rule:MF_01113};
KW Magnesium {ECO:0000256|HAMAP-Rule:MF_01113};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_01113};
KW Mutator protein {ECO:0000256|ARBA:ARBA00022457, ECO:0000256|HAMAP-
KW Rule:MF_01113};
KW Nucleotidyltransferase {ECO:0000256|HAMAP-Rule:MF_01113,
KW ECO:0000313|EMBL:CDF82708.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000025241};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_01113, ECO:0000313|EMBL:CDF82708.1}.
FT DOMAIN 8..189
FT /note="UmuC"
FT /evidence="ECO:0000259|PROSITE:PS50173"
FT ACT_SITE 108
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT BINDING 12
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT BINDING 107
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT SITE 17
FT /note="Substrate discrimination"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
SQ SEQUENCE 353 AA; 39490 MW; B745085B4CDA0396 CRC64;
MSAKQRKIIH IDCDCFYAAI EMRDDPSLAG KPLAVGGSPD KRGVVATCNY EARAYGLHSA
MAMRTAVKLC PDLTIVRPRM DVYKGVSRDI HAIFRDYTDL IEPLSLDEAY LDVSDCAHFA
GSATRIAQDI RRRVWSSLGI TVSAGVAPNK FLAKIASDWR KPNGLFVITP DQVEAFVAEL
PVKKLHGVGK VTAEKLARLG VQTCLELRDW SRLALVREFG GFGERLWNLA RGIDDRAVQV
DSRRQSISVE NTFEHDLRDV DACLAELPSL LDELQRRMQR LDASYRADKP FVKLKFHDFT
QTTLEQAGAG RDLDSYRSLL AQAYQRGERP VRLIGVGVRL VDLRGKAEQL SLF
//
