ID I0AL64_IGNAJ Unreviewed; 393 AA.
AC I0AL64;
DT 13-JUN-2012, integrated into UniProtKB/TrEMBL.
DT 13-JUN-2012, sequence version 1.
DT 27-MAR-2024, entry version 68.
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 OrderedLocusNames=IALB_2016 {ECO:0000313|EMBL:AFH49721.1};
OS Ignavibacterium album (strain DSM 19864 / JCM 16511 / NBRC 101810 /
OS Mat9-16).
OC Bacteria; Ignavibacteriota; Ignavibacteria; Ignavibacteriales;
OC Ignavibacteriaceae; Ignavibacterium.
OX NCBI_TaxID=945713 {ECO:0000313|EMBL:AFH49721.1, ECO:0000313|Proteomes:UP000007394};
RN [1] {ECO:0000313|EMBL:AFH49721.1, ECO:0000313|Proteomes:UP000007394}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 19864 / JCM 16511 / NBRC 101810 / Mat9-16
RC {ECO:0000313|Proteomes:UP000007394};
RX PubMed=22661972; DOI=10.3389/fmicb.2012.00185;
RA Liu Z., Frigaard N.-U., Vogl K., Iino T., Ohkuma M., Overmann J.,
RA Bryant D.A.;
RT "Complete genome of Ignavibacterium album, a metabolically versatile,
RT flagellated, facultative anaerobe from the phylum Chlorobi.";
RL Front. Microbiol. 3:185-185(2012).
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; CP003418; AFH49721.1; -; Genomic_DNA.
DR RefSeq; WP_014560870.1; NC_017464.1.
DR AlphaFoldDB; I0AL64; -.
DR STRING; 945713.IALB_2016; -.
DR GeneID; 78243633; -.
DR KEGG; ial:IALB_2016; -.
DR PATRIC; fig|945713.3.peg.2020; -.
DR eggNOG; COG0389; Bacteria.
DR HOGENOM; CLU_012348_1_2_10; -.
DR OrthoDB; 9808813at2; -.
DR Proteomes; UP000007394; 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:UP000007394};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_01113}.
FT DOMAIN 4..186
FT /note="UmuC"
FT /evidence="ECO:0000259|PROSITE:PS50173"
FT ACT_SITE 105
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT BINDING 8
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT BINDING 104
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT SITE 13
FT /note="Substrate discrimination"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
SQ SEQUENCE 393 AA; 44863 MW; DCAE67DDFF7D15F9 CRC64;
MRTIFHLDLD AFFVSVERIL DPKLNGKPVI VGGDPKYGRG IVAACSYEAR AYGLHSAMPI
RTAYKLCPHG IYLHGHFEEY ERYSNAVKNI LERYAPLIEQ ASIDEFYLDM TGTQIIYGSM
FAFASKLQKE IWDELHLPCS IGIGSNKTVA KIGSDCMKPK GITYIIPGME KEFLAPMPVE
TIPGVGKVMK QHLNERGIYR IADITKLSAD YFSVAFGKYG VDLWRKAHGE GTEYLKIQRE
RKSISRETTF GKDVTSDEEL KQTLFYLTGK VCQSLRKRGW EASTIEIKLR YIDFQTLVRS
KTISPTDDDK IVFDTAWELL QKAKTRRVAV RLIGVGLTNF SPTSEQEFLF EDYEIKRKKM
FKAVTKIRDK FGYESVFLGA SKKIEKDHLI GNY
//
