ID K4L1U1_9FIRM Unreviewed; 417 AA.
AC K4L1U1;
DT 09-JAN-2013, integrated into UniProtKB/TrEMBL.
DT 09-JAN-2013, sequence version 1.
DT 24-JAN-2024, entry version 56.
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 ORFNames=DCF50_p1231 {ECO:0000313|EMBL:AFV05237.1};
OS Dehalobacter sp. CF.
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Desulfitobacteriaceae;
OC Dehalobacter.
OX NCBI_TaxID=1131462 {ECO:0000313|EMBL:AFV05237.1, ECO:0000313|Proteomes:UP000000482};
RN [1] {ECO:0000313|EMBL:AFV05237.1, ECO:0000313|Proteomes:UP000000482}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CF {ECO:0000313|EMBL:AFV05237.1};
RX PubMed=23284863; DOI=10.1371/journal.pone.0052038;
RA Tang S., Gong Y., Edwards E.A.;
RT "Semi-automatic in silico gap closure enabled de novo assembly of two
RT dehalobacter genomes from metagenomic data.";
RL PLoS ONE 7:E52038-E52038(2012).
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; CP003870; AFV05237.1; -; Genomic_DNA.
DR RefSeq; WP_015043230.1; NC_018867.1.
DR AlphaFoldDB; K4L1U1; -.
DR STRING; 1131462.DCF50_p1231; -.
DR KEGG; dec:DCF50_p1231; -.
DR PATRIC; fig|1131462.4.peg.1243; -.
DR eggNOG; COG0389; Bacteria.
DR HOGENOM; CLU_012348_1_1_9; -.
DR Proteomes; UP000000482; 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; DNA REPAIR POLYMERASE UMUC / TRANSFERASE FAMILY MEMBER; 1.
DR PANTHER; PTHR11076:SF35; DNA REPAIR PROTEIN HOMOLOG YOBH; 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|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_01113};
KW DNA damage {ECO:0000256|ARBA:ARBA00022763, ECO:0000256|HAMAP-
KW Rule:MF_01113};
KW DNA repair {ECO:0000256|ARBA:ARBA00023204, ECO:0000256|HAMAP-
KW Rule:MF_01113}; DNA replication {ECO:0000256|HAMAP-Rule:MF_01113};
KW DNA-binding {ECO:0000256|HAMAP-Rule:MF_01113};
KW DNA-directed DNA polymerase {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|HAMAP-Rule:MF_01113};
KW Nucleotidyltransferase {ECO:0000256|HAMAP-Rule:MF_01113,
KW ECO:0000313|EMBL:AFV05237.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000000482};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_01113, ECO:0000313|EMBL:AFV05237.1}.
FT DOMAIN 6..194
FT /note="UmuC"
FT /evidence="ECO:0000259|PROSITE:PS50173"
FT ACT_SITE 113
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT BINDING 10
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT BINDING 112
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT SITE 15
FT /note="Substrate discrimination"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
SQ SEQUENCE 417 AA; 46885 MW; BB67D5131360286F CRC64;
MSRRIIFHVD VNSAYLSWEA VHRLQHGDPL DLRTVPSVVG GNQETRHGII LAKSIPSKNY
GIVTGESLFA AKLKCPNLII VPPNYYLYMQ CSSAFGDILR EYSPLVEQYS IDEYFLDYIG
MEKVLGDPIA AAYHLKDQIR EQLGFTVNVG ISSNKLLAKM GSELKKPDRV HTLFPEEMPV
KMWPLPVAEL FGVGRATAPK LNDRGIYTIG DLANADPNQL KLFLKSFGFL IWNFANGRDE
SFVKINRRPI IKGIGNSTTI AFDVTDTPTA HLVLLSLVES VAARLRQADY LAQLVSVSIR
TNDLYSYSHQ RKLYTPTDST NKIHKIACDL FDEIWKNEPI RHLGVRVSEL CTNSFIQPSL
FEQDIEKQRA MDHAVDEIRS RFGLRSVMRA SFLHSGLSAI SGGTVTDEEY PMMSSLL
//
