ID   DPO3E_RHOCB             Reviewed;         704 AA.
AC   O68045; D5AV69;
DT   15-DEC-1998, integrated into UniProtKB/Swiss-Prot.
DT   01-AUG-1998, sequence version 1.
DT   03-AUG-2022, entry version 115.
DE   RecName: Full=DNA polymerase III subunit epsilon-like protein;
DE            EC=2.7.7.7;
GN   Name=dnaQ; OrderedLocusNames=RCAP_rcc02121;
OS   Rhodobacter capsulatus (strain ATCC BAA-309 / NBRC 16581 / SB1003).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales;
OC   Rhodobacteraceae; Rhodobacter.
OX   NCBI_TaxID=272942;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=ATCC BAA-309 / NBRC 16581 / SB1003;
RX   PubMed=9256491; DOI=10.1073/pnas.94.17.9384;
RA   Vlcek C., Paces V., Maltsev N., Paces J., Haselkorn R., Fonstein M.;
RT   "Sequence of a 189-kb segment of the chromosome of Rhodobacter capsulatus
RT   SB1003.";
RL   Proc. Natl. Acad. Sci. U.S.A. 94:9384-9388(1997).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-309 / NBRC 16581 / SB1003;
RX   PubMed=20418398; DOI=10.1128/jb.00366-10;
RA   Strnad H., Lapidus A., Paces J., Ulbrich P., Vlcek C., Paces V.,
RA   Haselkorn R.;
RT   "Complete genome sequence of the photosynthetic purple nonsulfur bacterium
RT   Rhodobacter capsulatus SB 1003.";
RL   J. Bacteriol. 192:3545-3546(2010).
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   -!- 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}.
CC   -!- SIMILARITY: In the C-terminal section; belongs to the DNA polymerase
CC       III epsilon chain family. {ECO:0000305}.
CC   -!- CAUTION: There might be a sequencing error that fuses together two
CC       ORFs. {ECO:0000305}.
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DR   EMBL; AF010496; AAC16131.1; -; Genomic_DNA.
DR   EMBL; CP001312; ADE85851.1; -; Genomic_DNA.
DR   PIR; T03478; T03478.
DR   RefSeq; WP_013067830.1; NC_014034.1.
DR   AlphaFoldDB; O68045; -.
DR   STRING; 272942.RCAP_rcc02121; -.
DR   EnsemblBacteria; ADE85851; ADE85851; RCAP_rcc02121.
DR   GeneID; 31490972; -.
DR   KEGG; rcp:RCAP_rcc02121; -.
DR   eggNOG; COG2176; Bacteria.
DR   eggNOG; COG5002; Bacteria.
DR   HOGENOM; CLU_017573_0_0_5; -.
DR   OMA; PEYYDFD; -.
DR   OrthoDB; 1985371at2; -.
DR   Proteomes; UP000002361; 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:UniProt.
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; IPR000014; PAS.
DR   InterPro; IPR035965; PAS-like_dom_sf.
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   SUPFAM; SSF55785; SSF55785; 1.
DR   TIGRFAMs; TIGR00573; dnaq; 1.
DR   PROSITE; PS50112; PAS; 1.
PE   3: Inferred from homology;
KW   DNA replication; DNA-directed DNA polymerase; Nucleotidyltransferase;
KW   Reference proteome; Transferase.
FT   CHAIN           1..704
FT                   /note="DNA polymerase III subunit epsilon-like protein"
FT                   /id="PRO_0000105491"
FT   DOMAIN          139..192
FT                   /note="PAS"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00140"
FT   REGION          511..704
FT                   /note="DNA-polymerase III epsilon chain-like"
SQ   SEQUENCE   704 AA;  75683 MW;  8897BB3309E1ABA1 CRC64;
     MGLARLSLRL RIFLFFAALA MGNLAALVAG LVFGFHKLAR PEALSGFVIG GTVAGLVILG
     LIGVVWALFD ANLARPIERL AGSIRARTQT AVDSALDESA GRYLGDLAPA AAAIAQHLNE
     TRSALTEAVQ RETTRLAREK DRLETLLSDV PVGVLLCTAD HALVFYNGQA VDLLGGAHAP
     GLDRRVFDYL HPAPIRHAHA RLLATADPDA ASDLLCATVA DGRTLAARMR LISEGEDHQV
     RRLAGYVLTL RDVSADLRAH AGREALMDEL FDRIRRPAAA LQSLMGVLIA EDGPADPQAR
     AQLREAARAE AGHLAQAIHS LHDRHEAMRA DWWPLAMIRA SDFGAAVQAR VAAEGAGDLL
     PVTAALLLRL EGFEMVALIA HLVRRLGPGR AEKRLEVLED GAGALIALEW RGAAVAIADL
     ELWLSEPLDV GQAEVTGRRV LSVHATDLWP ERLHEGRHRL CLPLREARRI GPDPHPVPRP
     VPRQVVYDFD LLGRGGESAL AETPLDKLTF VVFDTETTGL FPTGGDEIVQ IAAVRIVNGR
     RVAGEVFDTL VNPGRPIPAA STAVHGITEA MVATAPAIAE VGRRFHKFAE GAVLVAHNAP
     FDLEFLRRKE LLIGKNFDNP VLDTVLLSAV VFGAAEGHSL DALTHRLGIT IPEEARHTAL
     GDTVATAEAF LRLLPALKAR GLTTFGAVLT EVRKHGRLMR DMNA