ID A0A0G9MMI2_9SPHN Unreviewed; 374 AA.
AC A0A0G9MMI2;
DT 16-SEP-2015, integrated into UniProtKB/TrEMBL.
DT 16-SEP-2015, sequence version 1.
DT 24-JAN-2024, entry version 28.
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=AAW01_10650 {ECO:0000313|EMBL:KLE31902.1};
OS Aurantiacibacter gangjinensis.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Sphingomonadales;
OC Erythrobacteraceae; Aurantiacibacter.
OX NCBI_TaxID=502682 {ECO:0000313|EMBL:KLE31902.1, ECO:0000313|Proteomes:UP000053070};
RN [1] {ECO:0000313|EMBL:KLE31902.1, ECO:0000313|Proteomes:UP000053070}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=K7-2 {ECO:0000313|EMBL:KLE31902.1,
RC ECO:0000313|Proteomes:UP000053070};
RA Zhuang L., Liu Y., Shao Z.;
RT "The draft genome sequence of Erythrobacr gangjinensis K7-2.";
RL Submitted (APR-2015) 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|ARBA:ARBA00025589, 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;
CC Evidence={ECO:0000256|ARBA:ARBA00024632, 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|ARBA:ARBA00011245, ECO:0000256|HAMAP-
CC 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:KLE31902.1}.
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DR EMBL; LBHC01000002; KLE31902.1; -; Genomic_DNA.
DR RefSeq; WP_047007253.1; NZ_LBHC01000002.1.
DR AlphaFoldDB; A0A0G9MMI2; -.
DR STRING; 502682.BMF35_a1129; -.
DR PATRIC; fig|502682.8.peg.2166; -.
DR OrthoDB; 9808813at2; -.
DR Proteomes; UP000053070; 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|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}; Nucleotidyltransferase {ECO:0000256|HAMAP-Rule:MF_01113};
KW Reference proteome {ECO:0000313|Proteomes:UP000053070};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_01113}.
FT DOMAIN 20..200
FT /note="UmuC"
FT /evidence="ECO:0000259|PROSITE:PS50173"
FT ACT_SITE 119
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT BINDING 24
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT BINDING 118
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT SITE 29
FT /note="Substrate discrimination"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
SQ SEQUENCE 374 AA; 41277 MW; 0F7A66A49D01F8F0 CRC64;
MDAQPDNAED GGEADGLRKI IHVDMDAFFA SVEQRDNPEL RGKPVAVGGS SGRGVVAAAS
YEARRFGVRS AMPSVTAKRK CPDLIFVKSR FDAYREASEK IRAIFHHYTP DVEPLSLDEA
YLDVTEDRHG IGSATAIAQA IRKAIFETTQ LTASAGVSYN KFLAKLASDQ NKPNGICVIR
PGEGAAFVQS LPVRRFHGIG PKGAEKMARL GIATGADLAA KDREWLGQHF GSFGDYLYRA
ARGIDLRPVR TNRTRKSIGG ERTFSEDIST DAELRETLER IIDIVWERIA AKEARGRTVT
LKLKFNDFQI ATRARSLPQP VGDKDRFAEV AREILEGELP LPMPIRLMGL TLSNLERKDG
EPARRRDDSQ LSLL
//
