ID A0A0Q4R7A1_9BACL Unreviewed; 422 AA.
AC A0A0Q4R7A1;
DT 20-JAN-2016, integrated into UniProtKB/TrEMBL.
DT 20-JAN-2016, 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=polYB {ECO:0000313|EMBL:KQO04501.1};
GN Synonyms=dinB {ECO:0000256|HAMAP-Rule:MF_01113}, yqjW
GN {ECO:0000313|EMBL:KQO04501.1};
GN ORFNames=ASF12_13270 {ECO:0000313|EMBL:KQO04501.1};
OS Paenibacillus sp. Leaf72.
OC Bacteria; Bacillota; Bacilli; Bacillales; Paenibacillaceae; Paenibacillus.
OX NCBI_TaxID=1736234 {ECO:0000313|EMBL:KQO04501.1, ECO:0000313|Proteomes:UP000051722};
RN [1] {ECO:0000313|EMBL:KQO04501.1, ECO:0000313|Proteomes:UP000051722}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Leaf72 {ECO:0000313|EMBL:KQO04501.1,
RC ECO:0000313|Proteomes:UP000051722};
RA Gilbert D.G.;
RL Submitted (OCT-2015) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:KQO04501.1, ECO:0000313|Proteomes:UP000051722}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Leaf72 {ECO:0000313|EMBL:KQO04501.1,
RC ECO:0000313|Proteomes:UP000051722};
RA Schulze-Lefert P.;
RT "Functional overlap of the Arabidopsis leaf and root microbiotas.";
RL Submitted (NOV-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|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:KQO04501.1}.
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DR EMBL; LMLV01000023; KQO04501.1; -; Genomic_DNA.
DR RefSeq; WP_056038476.1; NZ_LMLV01000023.1.
DR AlphaFoldDB; A0A0Q4R7A1; -.
DR STRING; 1736234.ASF12_13270; -.
DR OrthoDB; 9808813at2; -.
DR Proteomes; UP000051722; 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; 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 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|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 ECO:0000313|EMBL:KQO04501.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000051722};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_01113, ECO:0000313|EMBL:KQO04501.1}.
FT DOMAIN 9..194
FT /note="UmuC"
FT /evidence="ECO:0000259|PROSITE:PS50173"
FT ACT_SITE 110
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT BINDING 13
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT BINDING 109
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT SITE 18
FT /note="Substrate discrimination"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
SQ SEQUENCE 422 AA; 47515 MW; 2286CDA9313765C0 CRC64;
MRETAERVIL LADCQSFYAS IEKASHPECK NKPVVVAGSV ERRSGIILAA CPIAKQYGIT
TAERLGIALN KCPELVVLRP RMQHYIDASL MITGIYEEFT NLVEIFSIDE QFLDITASLP
LFGDPVTIAK ALQQKVLLQT GVWIRVGISS NKMLAKMATD IWAKKNEDGI FTLPKAELEA
LLWPQPVHKM FGVGSRMTTH FTRLGMHTIG DIAKTPLPRL KDQFRFRFGK QSDIHAEVLW
RTANGIDDSP VTPGTFNNPP KSVGHMMTLP RDYMEPWEVD TVLLELTEEV CRDCRRKKYM
GHVVTVNCMC SPYEAPTGFS RQMKLLDPTN HTKTVFEAVK QLFYKFWDGM PVRRVGVTIS
QLMDDQNYQL TLFEDQIKLR ALEKVTDGIK NRYGSTAIVR ASSLTAAGQA ADRSIKIGGH
YK
//
