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DPO4_NEIMB
ID   DPO4_NEIMB              Reviewed;         318 AA.
AC   Q9JYS8;
DT   02-AUG-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2000, sequence version 1.
DT   03-AUG-2022, entry version 123.
DE   RecName: Full=DNA polymerase IV {ECO:0000255|HAMAP-Rule:MF_01113};
DE            Short=Pol IV {ECO:0000255|HAMAP-Rule:MF_01113};
DE            EC=2.7.7.7 {ECO:0000255|HAMAP-Rule:MF_01113};
GN   Name=dinB {ECO:0000255|HAMAP-Rule:MF_01113}; OrderedLocusNames=NMB1448;
OS   Neisseria meningitidis serogroup B (strain MC58).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Neisseriales; Neisseriaceae;
OC   Neisseria.
OX   NCBI_TaxID=122586;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MC58;
RX   PubMed=10710307; DOI=10.1126/science.287.5459.1809;
RA   Tettelin H., Saunders N.J., Heidelberg J.F., Jeffries A.C., Nelson K.E.,
RA   Eisen J.A., Ketchum K.A., Hood D.W., Peden J.F., Dodson R.J., Nelson W.C.,
RA   Gwinn M.L., DeBoy R.T., Peterson J.D., Hickey E.K., Haft D.H.,
RA   Salzberg S.L., White O., Fleischmann R.D., Dougherty B.A., Mason T.M.,
RA   Ciecko A., Parksey D.S., Blair E., Cittone H., Clark E.B., Cotton M.D.,
RA   Utterback T.R., Khouri H.M., Qin H., Vamathevan J.J., Gill J., Scarlato V.,
RA   Masignani V., Pizza M., Grandi G., Sun L., Smith H.O., Fraser C.M.,
RA   Moxon E.R., Rappuoli R., Venter J.C.;
RT   "Complete genome sequence of Neisseria meningitidis serogroup B strain
RT   MC58.";
RL   Science 287:1809-1815(2000).
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:0000255|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:0000255|HAMAP-
CC         Rule:MF_01113};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01113};
CC       Note=Binds 2 magnesium ions per subunit. {ECO:0000255|HAMAP-
CC       Rule:MF_01113};
CC   -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_01113}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01113}.
CC   -!- SIMILARITY: Belongs to the DNA polymerase type-Y family.
CC       {ECO:0000255|HAMAP-Rule:MF_01113}.
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DR   EMBL; AE002098; AAF41808.1; -; Genomic_DNA.
DR   PIR; A81083; A81083.
DR   RefSeq; NP_274460.1; NC_003112.2.
DR   AlphaFoldDB; Q9JYS8; -.
DR   SMR; Q9JYS8; -.
DR   STRING; 122586.NMB1448; -.
DR   PaxDb; Q9JYS8; -.
DR   EnsemblBacteria; AAF41808; AAF41808; NMB1448.
DR   KEGG; nme:NMB1448; -.
DR   PATRIC; fig|122586.8.peg.1825; -.
DR   HOGENOM; CLU_012348_1_2_4; -.
DR   OMA; KVRRYDF; -.
DR   Proteomes; UP000000425; 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; IBA:GO_Central.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0006261; P:DNA-templated DNA replication; IEA:UniProtKB-UniRule.
DR   GO; GO:0042276; P:error-prone translesion synthesis; IBA:GO_Central.
DR   GO; GO:0009432; P:SOS response; IBA:GO_Central.
DR   CDD; cd03586; PolY_Pol_IV_kappa; 1.
DR   Gene3D; 3.30.1490.100; -; 1.
DR   Gene3D; 3.30.70.270; -; 2.
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   Pfam; PF00817; IMS; 1.
DR   Pfam; PF11799; IMS_C; 1.
DR   Pfam; PF11798; IMS_HHH; 1.
DR   SUPFAM; SSF100879; SSF100879; 1.
DR   SUPFAM; SSF56672; SSF56672; 1.
DR   PROSITE; PS50173; UMUC; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; DNA damage; DNA repair; DNA replication; DNA-binding;
KW   DNA-directed DNA polymerase; Magnesium; Metal-binding; Mutator protein;
KW   Nucleotidyltransferase; Reference proteome; Transferase.
FT   CHAIN           1..318
FT                   /note="DNA polymerase IV"
FT                   /id="PRO_0000173929"
FT   DOMAIN          6..186
FT                   /note="UmuC"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
FT   ACT_SITE        105
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
FT   BINDING         10
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
FT   BINDING         104
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
FT   SITE            15
FT                   /note="Substrate discrimination"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01113"
SQ   SEQUENCE   318 AA;  35966 MW;  A8D75AFDCDDAB9CB CRC64;
     MSSRKIIHID MDAFYASVEL REQPHLKGRP VVVAWEGARS VICAASYEAR QFGLHSAMSV
     ATAKRLCPQA VYVPPHFDLY RQVSAQIHAV FRRYTDLIEP LSLDEAYLDV TRNFKNIPYA
     GDVAKEIRAA IFAETGLTAS AGIAPNKFLA KIASDWRKPN GQFVLPPHKV MAFLETLPLG
     KIPGVGKVTL KKMQSLGMRT AGDLRRFERG ELLNHFGRYG YRLYDLVRGT DERPVKAERE
     RLQISTEITL PEDLPLEQAA GHLPHLAEDL WRQITRKNVE AQSVTLKLKT YDFRIITRTL
     TYSSVLPDCA LCCRLRKC
 
 
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