ID A0A2Z5G086_9BACT Unreviewed; 376 AA.
AC A0A2Z5G086;
DT 10-OCT-2018, integrated into UniProtKB/TrEMBL.
DT 10-OCT-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=ACPOL_3115 {ECO:0000313|EMBL:AXC12410.1};
OS Acidisarcina polymorpha.
OC Bacteria; Acidobacteriota; Terriglobia; Terriglobales; Acidobacteriaceae;
OC Acidisarcina.
OX NCBI_TaxID=2211140 {ECO:0000313|EMBL:AXC12410.1, ECO:0000313|Proteomes:UP000253606};
RN [1] {ECO:0000313|EMBL:AXC12410.1, ECO:0000313|Proteomes:UP000253606}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SBC82 {ECO:0000313|EMBL:AXC12410.1,
RC ECO:0000313|Proteomes:UP000253606};
RX PubMed=30510549; DOI=10.3389/fmicb.2018.02775;
RA Belova S.E., Ravin N.V., Pankratov T.A., Rakitin A.L., Ivanova A.A.,
RA Beletsky A.V., Mardanov A.V., Sinninghe Damste J.S., Dedysh S.N.;
RT "Hydrolytic Capabilities as a Key to Environmental Success: Chitinolytic
RT and Cellulolytic Acidobacteria From Acidic Sub-arctic Soils and Boreal
RT Peatlands.";
RL Front. Microbiol. 9:2775-2775(2018).
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; CP030840; AXC12410.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2Z5G086; -.
DR KEGG; abas:ACPOL_3115; -.
DR Proteomes; UP000253606; 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|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:UP000253606};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_01113}.
FT DOMAIN 14..194
FT /note="UmuC"
FT /evidence="ECO:0000259|PROSITE:PS50173"
FT ACT_SITE 113
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT BINDING 18
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 23
FT /note="Substrate discrimination"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
SQ SEQUENCE 376 AA; 41491 MW; F56D80D8D7EBEC84 CRC64;
MVTVTHAELG SRKIVHVDMD AFYASVEQRD EPSLRDKPVV VAWKGKRSVV CAASYEARKY
GIRSAMPAVT AARLCPEAVF VPPDFTRYKA VSEAVHEIFG RHTDSIEPLS LDEAYLDVTK
NKLGLPTATL VAKAIRQQIR EELNLTASAG IAPNKFLAKI ASDWRKPNGQ FVIQPHEVQA
LLLPLPVGRV PGVGKVTEAR MAQVGIKTVG DIFAMMMPTL EEHFGRYGQR LYELARGIDH
NPVVSDRVRK QVSAEDTFPD DLLLDQCETH IRRLVEKVWN ASHHNARAAK TIGLKLKTKE
FTSLTRSITP PVAPVSLEEF TKIALSLRER VGCAPDQLFR LVGVGLSNFQ IDAEPVPPLF
EDAAPNDQSA FLASNG
//
