ID A0A430JEQ5_9BACL Unreviewed; 432 AA.
AC A0A430JEQ5;
DT 08-MAY-2019, integrated into UniProtKB/TrEMBL.
DT 08-MAY-2019, sequence version 1.
DT 27-MAR-2024, entry version 16.
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=EJQ19_11665 {ECO:0000313|EMBL:RTE09521.1};
OS Paenibacillus whitsoniae.
OC Bacteria; Bacillota; Bacilli; Bacillales; Paenibacillaceae; Paenibacillus.
OX NCBI_TaxID=2496558 {ECO:0000313|EMBL:RTE09521.1, ECO:0000313|Proteomes:UP000276128};
RN [1] {ECO:0000313|EMBL:RTE09521.1, ECO:0000313|Proteomes:UP000276128}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MER 54 {ECO:0000313|EMBL:RTE09521.1,
RC ECO:0000313|Proteomes:UP000276128};
RA Seuylemezian A., Vaishampayan P.;
RT "Bacillus ochoae sp. nov., Paenibacillus whitsoniae sp. nov., Paenibacillus
RT spiritus sp. nov. Isolated from the Mars Exploration Rover during
RT spacecraft assembly.";
RL Submitted (DEC-2018) 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:RTE09521.1}.
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DR EMBL; RXHU01000031; RTE09521.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A430JEQ5; -.
DR OrthoDB; 9808813at2; -.
DR Proteomes; UP000276128; 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; 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 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|ARBA:ARBA00022695, ECO:0000256|HAMAP-
KW Rule:MF_01113}; Reference proteome {ECO:0000313|Proteomes:UP000276128};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_01113, ECO:0000313|EMBL:RTE09521.1}.
FT DOMAIN 14..196
FT /note="UmuC"
FT /evidence="ECO:0000259|PROSITE:PS50173"
FT REGION 413..432
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 116
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 115
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 432 AA; 48951 MW; 2B64C9B00678410D CRC64;
MTAHSHYPKQ GRVILHIDMN AFYCSVHEAV EPELYKGKPL AVAGSVELRR GIIVTSSYAA
RNLGIKTGMQ VRQALKLCPD LILIRPDFDL YRDFSRRFMQ IAYSYSPLVE SMSIDECFVD
ITGSKQFGTP LEIASQIQER IAMELRLPCS IGVAPNKLLA KMGSDMKKPN GISVIRLRDV
PTVFWDKPCQ YLYGIGRKTA DKLTRLGILT LGQLAKADDA LLLKHFGIVG AHLKLSANGI
DHSSVNPEHE QSKSIGHTTT LPRDYTDRTE VHRVLLNLAD QVARRLRRQE LMTQTVVVTI
RDPEMRTITR SLTLQAPTEH LDDIYRTACQ LYDHHWEEGN PVRLLGVTLQ SLSAREETYV
QLDLFDYEKQ PKKENLNRIM DGLRDKFGEN AILTAGMLSN DPSAMIRNHK ARGTSLQMDH
LRNNPLHKDE EK
//
