ID A0A2K8PMH2_STRLA Unreviewed; 490 AA.
AC A0A2K8PMH2;
DT 25-APR-2018, integrated into UniProtKB/TrEMBL.
DT 25-APR-2018, sequence version 1.
DT 27-MAR-2024, entry version 21.
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=dinB1 {ECO:0000313|EMBL:ATZ27947.1};
GN Synonyms=dinB {ECO:0000256|HAMAP-Rule:MF_01113};
GN ORFNames=SLAV_30865 {ECO:0000313|EMBL:ATZ27947.1}, SLLC_29025
GN {ECO:0000313|EMBL:QUQ57774.1};
OS Streptomyces lavendulae subsp. lavendulae.
OC Bacteria; Actinomycetota; Actinomycetes; Kitasatosporales;
OC Streptomycetaceae; Streptomyces.
OX NCBI_TaxID=58340 {ECO:0000313|EMBL:ATZ27947.1, ECO:0000313|Proteomes:UP000231791};
RN [1] {ECO:0000313|EMBL:ATZ27947.1, ECO:0000313|Proteomes:UP000231791}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CCM 3239 {ECO:0000313|EMBL:ATZ27947.1,
RC ECO:0000313|Proteomes:UP000231791};
RA Busche T., Novakova R., Al'Dilaimi A., Homerova D., Feckova L.,
RA Rezuchova B., Mingyar E., Csolleiova D., Bekeova C., Winkler A.,
RA Sevcikova B., Kalinowski J., Kormanec J., Ruckert C.;
RT "Complete genome sequence of Streptomyces lavendulae subsp. lavendulae CCM
RT 3239 (formerly 'Streptomyces aureofaciens CCM 3239'), the producer of the
RT angucycline-type antibiotic auricin.";
RL Submitted (NOV-2017) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:QUQ57774.1}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=Del-LP {ECO:0000313|EMBL:QUQ57774.1};
RA Novakova R., Ruckert C., Knirschova R., Feckova L., Busche T.,
RA Csolleiova D., Homerova D., Rezuchova B., Javorova R., Sevcikova B.,
RA Kalinowski J., Kormanec J.;
RT "The linear plasmid pSA3239 is essential for the replication of the
RT Streptomyces lavendulae subsp. lavendulae CCM 3239 chromosome.";
RL Submitted (APR-2021) 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|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|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; CP024985; ATZ27947.1; -; Genomic_DNA.
DR EMBL; CP073778; QUQ57774.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2K8PMH2; -.
DR KEGG; slx:SLAV_30865; -.
DR OrthoDB; 9808813at2; -.
DR Proteomes; UP000231791; Chromosome.
DR Proteomes; UP000676025; 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; 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; PF14520; HHH_5; 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|HAMAP-Rule:MF_01113,
KW ECO:0000313|EMBL:ATZ27947.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000231791};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_01113, ECO:0000313|EMBL:ATZ27947.1}.
FT DOMAIN 7..189
FT /note="UmuC"
FT /evidence="ECO:0000259|PROSITE:PS50173"
FT REGION 374..402
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 454..490
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 106
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT BINDING 11
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT BINDING 105
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
FT SITE 16
FT /note="Substrate discrimination"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01113"
SQ SEQUENCE 490 AA; 50660 MW; B996C1D49414630D CRC64;
MRAAPTILHL DMDAFYASVE QASKPSLRGK AVIVGGLGPR GVVATASYEA RRFGVHSAMP
TAQARRLCPN GAYLIPRFSL YREVSDLVMG LLRELSPLVE PLSLDEAFVD LEAGGTAFDT
ASARATGERL RADIAAATGL SGSVGLAGSK MLAKVASEEA KPAGLLVIEP GTERELLAPM
SVRTLPGVGP ATGEHLRRAG ITTVGELAEA GEDELVRMVG KAHGVGLYRM ALGLDDRPVV
AERDAKSVSV EDTFDVDLHD RVRIRFEVQR LADRCVGRLR ASGHSGRTIV LKVRRYDFST
LTRSETLRGP TDDPSVVREA AARLLEGVDT TGGVRLLGVG VTGLADYTQE DLFAQVLGAG
AEEGGAVAEG VAPEGIAPEG DVPDGEEGAG EPDGAGAAAG TAGVAAAAGG PVAEAGGPEA
AAGRHWPAGS DVRHALYGPG WVQGSGVGRV TVRFEQPGSP PGRVRTFRLD DPELESSDPL
PLVGPAEGAV
//
