DNAG_METBU
ID DNAG_METBU Reviewed; 475 AA.
AC Q12V67;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 22-AUG-2006, sequence version 1.
DT 03-AUG-2022, entry version 84.
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=Mbur_1769;
OS Methanococcoides burtonii (strain DSM 6242 / NBRC 107633 / OCM 468 /
OS ACE-M).
OC Archaea; Euryarchaeota; Stenosarchaea group; Methanomicrobia;
OC Methanosarcinales; Methanosarcinaceae; Methanococcoides.
OX NCBI_TaxID=259564;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 6242 / NBRC 107633 / OCM 468 / ACE-M;
RX PubMed=19404327; DOI=10.1038/ismej.2009.45;
RA Allen M.A., Lauro F.M., Williams T.J., Burg D., Siddiqui K.S.,
RA De Francisci D., Chong K.W., Pilak O., Chew H.H., De Maere M.Z., Ting L.,
RA Katrib M., Ng C., Sowers K.R., Galperin M.Y., Anderson I.J., Ivanova N.,
RA Dalin E., Martinez M., Lapidus A., Hauser L., Land M., Thomas T.,
RA Cavicchioli R.;
RT "The genome sequence of the psychrophilic archaeon, Methanococcoides
RT burtonii: the role of genome evolution in cold adaptation.";
RL ISME J. 3:1012-1035(2009).
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; CP000300; ABE52659.1; -; Genomic_DNA.
DR RefSeq; WP_011499802.1; NC_007955.1.
DR AlphaFoldDB; Q12V67; -.
DR SMR; Q12V67; -.
DR STRING; 259564.Mbur_1769; -.
DR EnsemblBacteria; ABE52659; ABE52659; Mbur_1769.
DR GeneID; 3997329; -.
DR KEGG; mbu:Mbur_1769; -.
DR HOGENOM; CLU_034626_0_0_2; -.
DR OMA; KYMIVAQ; -.
DR OrthoDB; 23182at2157; -.
DR Proteomes; UP000001979; 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; Reference proteome;
KW Transcription; Transferase.
FT CHAIN 1..475
FT /note="DNA primase DnaG"
FT /id="PRO_1000000557"
FT DOMAIN 171..257
FT /note="Toprim"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00007"
FT REGION 282..381
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 293..307
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 317..373
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 177
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 219
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 219
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00007"
FT BINDING 221
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00007"
SQ SEQUENCE 475 AA; 52487 MW; D5F3B1CDA382BB2B CRC64;
MQNTDTTKYI IHSKISADGI IERPDIVGAI FGQTEGLLGS DLDLRDLQKT GRIGRIEVAV
GAKGGKTKGN IFIPSSLDRV ETSILAASLE TIDRVGPCAA KIEITQVEDV RATKRKHIIE
RAKFILTDMF DENLPESQEI ADEVRQSVRI EEMQYYGKNK IPCGPNVVES DAIVVVEGRA
DVLNLLRYGI KNTICVGGTN VPPEVAELTK KKTVTAFTDG DRGGKLIIKE LLQVADIDYI
ARAPDGKSVE DLVQREIVRS LRQKIPVEQA LENYTIKTDA KPVTTETPAK GSRITRLPKR
KERPELSVPA VKQLPNKPSR SEEKPGVTRE PRTTREPRTT REARTTRETR SPRETRSPRE
TRSPRETREP KEAKPAMLSP QALRFKPHSD ALIGTLGARL LDSKDEIIEE TAVRDLVNTL
KENDEGIKSV VFDGVVTQRI LDIASDKGIE NLIGVKKGNI AKSPASVNVL TASDF
