ID   DNAG_THEON              Reviewed;         464 AA.
AC   B6YSY6;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   20-JAN-2009, sequence version 1.
DT   03-AUG-2022, entry version 81.
DE   RecName: Full=DNA primase DnaG {ECO:0000255|HAMAP-Rule:MF_00007};
DE            EC=2.7.7.101 {ECO:0000255|HAMAP-Rule:MF_00007};
GN   Name=dnaG {ECO:0000255|HAMAP-Rule:MF_00007}; OrderedLocusNames=TON_0188;
OS   Thermococcus onnurineus (strain NA1).
OC   Archaea; Euryarchaeota; Thermococci; Thermococcales; Thermococcaceae;
OC   Thermococcus.
OX   NCBI_TaxID=523850;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NA1;
RX   PubMed=18790866; DOI=10.1128/jb.00746-08;
RA   Lee H.S., Kang S.G., Bae S.S., Lim J.K., Cho Y., Kim Y.J., Jeon J.H.,
RA   Cha S.-S., Kwon K.K., Kim H.-T., Park C.-J., Lee H.-W., Kim S.I., Chun J.,
RA   Colwell R.R., Kim S.-J., Lee J.-H.;
RT   "The complete genome sequence of Thermococcus onnurineus NA1 reveals a
RT   mixed heterotrophic and carboxydotrophic metabolism.";
RL   J. Bacteriol. 190:7491-7499(2008).
CC   -!- FUNCTION: RNA polymerase that catalyzes the synthesis of short RNA
CC       molecules used as primers for DNA polymerase during DNA replication.
CC       Also part of the exosome, which is a complex involved in RNA
CC       degradation. Acts as a poly(A)-binding protein that enhances the
CC       interaction between heteromeric, adenine-rich transcripts and the
CC       exosome. {ECO:0000255|HAMAP-Rule:MF_00007}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ssDNA + n NTP = ssDNA/pppN(pN)n-1 hybrid + (n-1) diphosphate.;
CC         EC=2.7.7.101; Evidence={ECO:0000255|HAMAP-Rule:MF_00007};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00007};
CC       Note=Binds two Mg(2+) per subunit. {ECO:0000255|HAMAP-Rule:MF_00007};
CC   -!- SUBUNIT: Forms a ternary complex with MCM helicase and DNA. Component
CC       of the archaeal exosome complex. {ECO:0000255|HAMAP-Rule:MF_00007}.
CC   -!- SIMILARITY: Belongs to the archaeal DnaG primase family.
CC       {ECO:0000255|HAMAP-Rule:MF_00007}.
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DR   EMBL; CP000855; ACJ15673.1; -; Genomic_DNA.
DR   RefSeq; WP_012571146.1; NC_011529.1.
DR   AlphaFoldDB; B6YSY6; -.
DR   SMR; B6YSY6; -.
DR   STRING; 523850.TON_0188; -.
DR   EnsemblBacteria; ACJ15673; ACJ15673; TON_0188.
DR   GeneID; 7017845; -.
DR   KEGG; ton:TON_0188; -.
DR   PATRIC; fig|523850.10.peg.188; -.
DR   eggNOG; arCOG04281; Archaea.
DR   HOGENOM; CLU_034626_0_0_2; -.
DR   OMA; KYMIVAQ; -.
DR   OrthoDB; 23182at2157; -.
DR   Proteomes; UP000002727; Chromosome.
DR   GO; GO:0000428; C:DNA-directed RNA polymerase complex; IEA:UniProtKB-KW.
DR   GO; GO:0000178; C:exosome (RNase complex); IEA:UniProtKB-KW.
DR   GO; GO:1990077; C:primosome complex; IEA:UniProtKB-KW.
DR   GO; GO:0003896; F:DNA primase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0008143; F:poly(A) binding; IEA:InterPro.
DR   CDD; cd01029; TOPRIM_primases; 1.
DR   HAMAP; MF_00007; DNA_primase_DnaG_arc; 1.
DR   InterPro; IPR020607; Primase_DnaG_arc.
DR   InterPro; IPR034154; TOPRIM_DnaG/twinkle.
DR   InterPro; IPR006171; TOPRIM_domain.
DR   Pfam; PF13662; Toprim_4; 1.
DR   SMART; SM00493; TOPRIM; 1.
DR   PROSITE; PS50880; TOPRIM; 1.
PE   3: Inferred from homology;
KW   DNA replication; DNA-directed RNA polymerase; Exosome; Magnesium;
KW   Metal-binding; Nucleotidyltransferase; Primosome; Transcription;
KW   Transferase.
FT   CHAIN           1..464
FT                   /note="DNA primase DnaG"
FT                   /id="PRO_1000089139"
FT   DOMAIN          200..274
FT                   /note="Toprim"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00007"
FT   REGION          322..359
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   BINDING         206
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00007"
FT   BINDING         248
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00007"
FT   BINDING         248
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00007"
FT   BINDING         250
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00007"
SQ   SEQUENCE   464 AA;  52003 MW;  507EB831D2517414 CRC64;
     MKRKKTVLHH ILAEKQKFEK RKEGGSMSAK DEFGTTKYVI YAEFEANGIV ERPDVVGAIF
     GQTEGLLGDD LDLRELQKTG RIGRIRVEVH AKAGKTYGTI TVPSSLDRVE TAILAAALET
     IDRVGPAEAK IKVLRIEDVR ATKRKYIIER AKEILETLME QEIPETQELT EEVKKAVRAK
     ELIEYGPEKL PAGPHVPFSD SIIVVEGRAD VLNLLKHGIK NAIAVEGTSV PETIIKLSKE
     RIVTAFTDGD RGGELILKEL LQVADVDYVA RAPEGKEVEE LTKKEIVKAL RSKVPAEQVI
     TEIFYKGRNF YEVIKEKERA KNGREEKVRE VKPPAPAPAP APAPKPIEKP EPKEREEKIV
     KPIQQPRPSE LDEFGEFIEK VKSSKDSMAL LLDKDKSVIA EIPVRELTNQ LKERKDVYAV
     VFNGVITQRL IDTVSESGVK YLVGARKYNV VRRPVNLKIV TFAE