ID   DNAG_METHJ              Reviewed;         440 AA.
AC   Q2FLB2;
DT   27-JUN-2006, integrated into UniProtKB/Swiss-Prot.
DT   21-MAR-2006, sequence version 1.
DT   03-AUG-2022, entry version 92.
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=Mhun_1103;
OS   Methanospirillum hungatei JF-1 (strain ATCC 27890 / DSM 864 / NBRC 100397 /
OS   JF-1).
OC   Archaea; Euryarchaeota; Stenosarchaea group; Methanomicrobia;
OC   Methanomicrobiales; Methanospirillaceae; Methanospirillum.
OX   NCBI_TaxID=323259;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 27890 / DSM 864 / NBRC 100397 / JF-1;
RX   PubMed=26744606; DOI=10.1186/s40793-015-0124-8;
RA   Gunsalus R.P., Cook L.E., Crable B., Rohlin L., McDonald E., Mouttaki H.,
RA   Sieber J.R., Poweleit N., Zhou H., Lapidus A.L., Daligault H.E., Land M.,
RA   Gilna P., Ivanova N., Kyrpides N., Culley D.E., McInerney M.J.;
RT   "Complete genome sequence of Methanospirillum hungatei type strain JF1.";
RL   Stand. Genomic Sci. 11:2-2(2016).
CC   -!- FUNCTION: RNA polymerase that catalyzes the synthesis of short RNA
CC       molecules used as primers for DNA polymerase during DNA replication.
CC       {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.
CC       {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; CP000254; ABD40852.1; -; Genomic_DNA.
DR   RefSeq; WP_011448130.1; NC_007796.1.
DR   AlphaFoldDB; Q2FLB2; -.
DR   SMR; Q2FLB2; -.
DR   STRING; 323259.Mhun_1103; -.
DR   EnsemblBacteria; ABD40852; ABD40852; Mhun_1103.
DR   GeneID; 3922136; -.
DR   KEGG; mhu:Mhun_1103; -.
DR   eggNOG; arCOG04281; Archaea.
DR   HOGENOM; CLU_034626_0_0_2; -.
DR   OMA; VISCECT; -.
DR   OrthoDB; 23182at2157; -.
DR   Proteomes; UP000001941; Chromosome.
DR   GO; GO:0000428; C:DNA-directed RNA polymerase complex; IEA:UniProtKB-KW.
DR   GO; GO:0000178; C:exosome (RNase complex); IEA:InterPro.
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; Magnesium; Metal-binding;
KW   Nucleotidyltransferase; Primosome; Reference proteome; Transcription;
KW   Transferase.
FT   CHAIN           1..440
FT                   /note="DNA primase DnaG"
FT                   /id="PRO_0000240462"
FT   DOMAIN          170..256
FT                   /note="Toprim"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00007"
FT   REGION          280..311
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   BINDING         176
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         218
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         218
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00007"
FT   BINDING         220
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00007"
SQ   SEQUENCE   440 AA;  48659 MW;  4C8F3793834B45F9 CRC64;
     MYEQDTTKYR IHLVVQADGV VDRSDVVGAI FGQIEGLLGS ELELRELQRQ GKLGRIDVKI
     QSKLGKSYGE ITIPTSVDRA ETAILAASME TINRVGPCVS EIHVQSIEDV RITKRTQIIE
     RAKALLLEFE EPGIDPDSLI DAVRESQRIE KIATIGVDNV PAGPNVLASD AIIVVEGRAD
     VINLLRAGIK NAVAVEGTSI PKTIIDLCRK KTTTAFFDGD RGGDLILREL LEVTDVDFVA
     YPTRGESVED LSRKEIIKAL RNKVPVEYVL EDRVAEYLAS QKSEQQTSSI REPEPERGSE
     PARYQQPAPA SDAVISCECT EEIPDAVSEE ESVTEYQAYL PDEEEDNRPR TVFTHIREVK
     NRGTARFIGV GGEMKNELPA GEVEEKLGAL EQGLEGIVID QEINQQLLDQ FSMHGIRYLA
     APSFTGIVRL PATIRLIPFR