ID A0A2H9VW58_9SPHI Unreviewed; 357 AA.
AC A0A2H9VW58;
DT 28-FEB-2018, integrated into UniProtKB/TrEMBL.
DT 28-FEB-2018, sequence version 1.
DT 24-JAN-2024, entry version 18.
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=CLV57_2078 {ECO:0000313|EMBL:PJJ85055.1};
OS Mucilaginibacter auburnensis.
OC Bacteria; Bacteroidota; Sphingobacteriia; Sphingobacteriales;
OC Sphingobacteriaceae; Mucilaginibacter.
OX NCBI_TaxID=1457233 {ECO:0000313|EMBL:PJJ85055.1, ECO:0000313|Proteomes:UP000242687};
RN [1] {ECO:0000313|EMBL:PJJ85055.1, ECO:0000313|Proteomes:UP000242687}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 28175 {ECO:0000313|EMBL:PJJ85055.1,
RC ECO:0000313|Proteomes:UP000242687};
RA Goeker M.;
RT "Genomic Encyclopedia of Archaeal and Bacterial Type Strains, Phase II
RT (KMG-II): From Individual Species to Whole Genera.";
RL Submitted (NOV-2017) 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}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:PJJ85055.1}.
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DR EMBL; PGFJ01000001; PJJ85055.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2H9VW58; -.
DR OrthoDB; 9808813at2; -.
DR Proteomes; UP000242687; Unassembled WGS sequence.
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|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 Reference proteome {ECO:0000313|Proteomes:UP000242687};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_01113}.
FT DOMAIN 10..192
FT /note="UmuC"
FT /evidence="ECO:0000259|PROSITE:PS50173"
FT ACT_SITE 111
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT BINDING 14
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT BINDING 110
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT SITE 19
FT /note="Substrate discrimination"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
SQ SEQUENCE 357 AA; 39929 MW; 07BB1010118B477E CRC64;
MSDLSDYRKI IHIDMDAFYA SVEQRDNPEF VGKALIVGGL PEGRGGVVAT ASYEARRFGV
RSAMPSKQAL QLCPDAIFVK PRFDAYKEVS RQIREIFKRY TDLIEPLSLD EAYLDVTQDK
QGIGSALTIA HAIKEAIRSE LRLTASAGVS VNKFVAKIAS DINKPDGMKF IGPSAIETFM
EQLPVEKFYG VGKVTAAKMK AMGLFTGADL KQLSEAELLR NFGKTGSFYY QIVRGIDERP
VTPSRPAKSL AAEDTFAYDL RTLEEMEAQL DTLALIVYGR LNKSKLQSCT VTLKVKYHDF
KQITRNRSFL APIDDLETIT RVAKELLALN FEEGQRVRLL GISLSNFARE TEQLRLF
//
