DPO3E_TREPA
ID DPO3E_TREPA Reviewed; 215 AA.
AC O83649;
DT 15-DEC-1998, integrated into UniProtKB/Swiss-Prot.
DT 01-NOV-1998, sequence version 1.
DT 03-AUG-2022, entry version 119.
DE RecName: Full=DNA polymerase III subunit epsilon;
DE EC=2.7.7.7;
GN Name=dnaQ; OrderedLocusNames=TP_0643;
OS Treponema pallidum (strain Nichols).
OC Bacteria; Spirochaetes; Spirochaetales; Treponemataceae; Treponema.
OX NCBI_TaxID=243276;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Nichols;
RX PubMed=9665876; DOI=10.1126/science.281.5375.375;
RA Fraser C.M., Norris S.J., Weinstock G.M., White O., Sutton G.G.,
RA Dodson R.J., Gwinn M.L., Hickey E.K., Clayton R.A., Ketchum K.A.,
RA Sodergren E., Hardham J.M., McLeod M.P., Salzberg S.L., Peterson J.D.,
RA Khalak H.G., Richardson D.L., Howell J.K., Chidambaram M., Utterback T.R.,
RA McDonald L.A., Artiach P., Bowman C., Cotton M.D., Fujii C., Garland S.A.,
RA Hatch B., Horst K., Roberts K.M., Sandusky M., Weidman J.F., Smith H.O.,
RA Venter J.C.;
RT "Complete genome sequence of Treponema pallidum, the syphilis spirochete.";
RL Science 281:375-388(1998).
CC -!- FUNCTION: DNA polymerase III is a complex, multichain enzyme
CC responsible for most of the replicative synthesis in bacteria. The
CC epsilon subunit contain the editing function and is a proofreading 3'-
CC 5' exonuclease (By similarity). {ECO:0000250}.
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 -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000250};
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035; Evidence={ECO:0000250};
CC Note=Binds 2 divalent metal cations. Magnesium or manganese.
CC {ECO:0000250};
CC -!- SUBUNIT: DNA polymerase III contains a core (composed of alpha, epsilon
CC and theta chains) that associates with a tau subunit. This core
CC dimerizes to form the POLIII' complex. PolIII' associates with the
CC gamma complex (composed of gamma, delta, delta', psi and chi chains)
CC and with the beta chain to form the complete DNA polymerase III complex
CC (By similarity). {ECO:0000250}.
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DR EMBL; AE000520; AAC65617.1; -; Genomic_DNA.
DR PIR; B71299; B71299.
DR RefSeq; WP_010882088.1; NC_021490.2.
DR AlphaFoldDB; O83649; -.
DR SMR; O83649; -.
DR IntAct; O83649; 1.
DR STRING; 243276.TPANIC_0643; -.
DR EnsemblBacteria; AAC65617; AAC65617; TP_0643.
DR GeneID; 57879168; -.
DR KEGG; tpa:TP_0643; -.
DR eggNOG; COG0847; Bacteria.
DR HOGENOM; CLU_047806_7_1_12; -.
DR OMA; FHVYLNP; -.
DR OrthoDB; 1985371at2; -.
DR Proteomes; UP000000811; Chromosome.
DR GO; GO:0003677; F:DNA binding; IEA:InterPro.
DR GO; GO:0003887; F:DNA-directed DNA polymerase activity; IEA:UniProtKB-KW.
DR GO; GO:0004527; F:exonuclease activity; IEA:UniProtKB-KW.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0006260; P:DNA replication; IEA:UniProtKB-KW.
DR Gene3D; 3.30.420.10; -; 1.
DR InterPro; IPR006054; DnaQ.
DR InterPro; IPR013520; Exonuclease_RNaseT/DNA_pol3.
DR InterPro; IPR012337; RNaseH-like_sf.
DR InterPro; IPR036397; RNaseH_sf.
DR Pfam; PF00929; RNase_T; 1.
DR SMART; SM00479; EXOIII; 1.
DR SUPFAM; SSF53098; SSF53098; 1.
DR TIGRFAMs; TIGR00573; dnaq; 1.
PE 3: Inferred from homology;
KW DNA replication; DNA-directed DNA polymerase; Exonuclease; Hydrolase;
KW Magnesium; Manganese; Metal-binding; Nuclease; Nucleotidyltransferase;
KW Reference proteome; Transferase.
FT CHAIN 1..215
FT /note="DNA polymerase III subunit epsilon"
FT /id="PRO_0000105490"
FT ACT_SITE 160
FT /note="Proton acceptor"
FT /evidence="ECO:0000250"
FT BINDING 19
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="1"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000250"
FT BINDING 19
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="2"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000250"
FT BINDING 19
FT /ligand="substrate"
FT /evidence="ECO:0000250"
FT BINDING 21
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="1"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000250"
FT BINDING 21
FT /ligand="substrate"
FT /evidence="ECO:0000250"
FT BINDING 62
FT /ligand="substrate"
FT /evidence="ECO:0000250"
FT BINDING 67
FT /ligand="substrate"
FT /evidence="ECO:0000255"
FT BINDING 165
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="1"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000250"
FT BINDING 165
FT /ligand="substrate"
FT /evidence="ECO:0000250"
SQ SEQUENCE 215 AA; 24239 MW; DD91E08DA75756FF CRC64;
MIYDWVFAVH EHVAFTAFDT ETTGLKAEED RIIEIGAVTF DRKGIIARFS TLIFPDRAIP
PDVSKINHIT DDMLVNKPRF CEIVSDFSRF IKGTVLVAHN ANFDVEFLNA ELSLCKKQPL
SHKVVDTYAM AQAVFPGLGR HQYRLQNLAL QFGLTVHAAH RAEDDARVCM ELFTTMIAHH
AKQNGHCVNH AQSPTIKKLI QEIQASSTDC SQELF
