ID A0A061SVG4_9RHOB Unreviewed; 378 AA.
AC A0A061SVG4;
DT 03-SEP-2014, integrated into UniProtKB/TrEMBL.
DT 03-SEP-2014, sequence version 1.
DT 24-JAN-2024, entry version 33.
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=PM02_08040 {ECO:0000313|EMBL:KAJ03758.1};
OS Sulfitobacter mediterraneus.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodobacterales;
OC Roseobacteraceae; Sulfitobacter.
OX NCBI_TaxID=83219 {ECO:0000313|EMBL:KAJ03758.1, ECO:0000313|Proteomes:UP000027337};
RN [1] {ECO:0000313|EMBL:KAJ03758.1, ECO:0000313|Proteomes:UP000027337}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=1FIGIMAR09 {ECO:0000313|EMBL:KAJ03758.1,
RC ECO:0000313|Proteomes:UP000027337};
RX PubMed=24855294;
RA Mas-Llado M., Pina-Villalonga J.M., Brunet-Galmes I., Nogales B., Bosch R.;
RT "Draft Genome Sequences of Two Isolates of the Roseobacter Group,
RT Sulfitobacter sp. Strains 3SOLIMAR09 and 1FIGIMAR09, from Harbors of
RT Mallorca Island (Mediterranean Sea).";
RL Genome Announc. 2:e00350-14(2014).
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:KAJ03758.1}.
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DR EMBL; JEMU01000005; KAJ03758.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A061SVG4; -.
DR STRING; 83219.PM02_08040; -.
DR eggNOG; COG0389; Bacteria.
DR Proteomes; UP000027337; 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|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};
KW Nucleotidyltransferase {ECO:0000256|HAMAP-Rule:MF_01113,
KW ECO:0000313|EMBL:KAJ03758.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000027337};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_01113, ECO:0000313|EMBL:KAJ03758.1}.
FT DOMAIN 1..178
FT /note="UmuC"
FT /evidence="ECO:0000259|PROSITE:PS50173"
FT ACT_SITE 96
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT BINDING 2
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT BINDING 95
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT SITE 7
FT /note="Substrate discrimination"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
SQ SEQUENCE 378 AA; 41554 MW; 1F999C9302B29415 CRC64;
MDCDAFYASV EKRDNPELNG KPVIIGGGRR GVVSTACYVA RIRGVRSAMP MFQALKLCPE
AVIIKPRMDA YVEASRAIRA MMEELTPSIE PLSLDEAFLD MTGTARLHGA PPAVMLAGLV
RRMKDELGLT GSIGLSHNKF LAKVASDLDK PHGFSVIGAA ETDDFLRDKP VKLIWGVGAV
TQGALDKAGI RTFADLLRWE KTDLVARFGG MGERLWHLAR GQDRRRVSAH EPVKSISKET
TFFEDTGNAD ILDGHLWRLS EQVADRAKAK DLAGRIVTLK IKRSDFKTLT RRVSLHDPTQ
LADRIYRHAR ALFDQLGDQG PFRLIGCGIS DLSPAEGADL AGDLLDPDAV KRSQAERATD
QIRDRYGSKA IVKGRALR
//
