ID   MOBA_NATPD              Reviewed;         202 AA.
AC   Q3IRT2;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   08-NOV-2005, sequence version 1.
DT   03-AUG-2022, entry version 91.
DE   RecName: Full=Probable molybdenum cofactor guanylyltransferase {ECO:0000255|HAMAP-Rule:MF_00316};
DE            Short=MoCo guanylyltransferase {ECO:0000255|HAMAP-Rule:MF_00316};
DE            EC=2.7.7.77 {ECO:0000255|HAMAP-Rule:MF_00316};
DE   AltName: Full=GTP:molybdopterin guanylyltransferase {ECO:0000255|HAMAP-Rule:MF_00316};
DE   AltName: Full=Mo-MPT guanylyltransferase {ECO:0000255|HAMAP-Rule:MF_00316};
DE   AltName: Full=Molybdopterin guanylyltransferase {ECO:0000255|HAMAP-Rule:MF_00316};
DE   AltName: Full=Molybdopterin-guanine dinucleotide synthase {ECO:0000255|HAMAP-Rule:MF_00316};
DE            Short=MGD synthase {ECO:0000255|HAMAP-Rule:MF_00316};
GN   Name=mobA {ECO:0000255|HAMAP-Rule:MF_00316}; OrderedLocusNames=NP_2138A;
OS   Natronomonas pharaonis (strain ATCC 35678 / DSM 2160 / CIP 103997 / JCM
OS   8858 / NBRC 14720 / NCIMB 2260 / Gabara) (Halobacterium pharaonis).
OC   Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Halobacteriales;
OC   Haloarculaceae; Natronomonas.
OX   NCBI_TaxID=348780;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 35678 / DSM 2160 / CIP 103997 / JCM 8858 / NBRC 14720 / NCIMB
RC   2260 / Gabara;
RX   PubMed=16169924; DOI=10.1101/gr.3952905;
RA   Falb M., Pfeiffer F., Palm P., Rodewald K., Hickmann V., Tittor J.,
RA   Oesterhelt D.;
RT   "Living with two extremes: conclusions from the genome sequence of
RT   Natronomonas pharaonis.";
RL   Genome Res. 15:1336-1343(2005).
CC   -!- FUNCTION: Transfers a GMP moiety from GTP to Mo-molybdopterin (Mo-MPT)
CC       cofactor (Moco or molybdenum cofactor) to form Mo-molybdopterin guanine
CC       dinucleotide (Mo-MGD) cofactor. {ECO:0000255|HAMAP-Rule:MF_00316}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=GTP + H(+) + Mo-molybdopterin = diphosphate + Mo-molybdopterin
CC         guanine dinucleotide; Xref=Rhea:RHEA:34243, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:33019, ChEBI:CHEBI:37565, ChEBI:CHEBI:71302,
CC         ChEBI:CHEBI:71310; EC=2.7.7.77; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00316};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00316};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00316}.
CC   -!- DOMAIN: The N-terminal domain determines nucleotide recognition and
CC       specific binding, while the C-terminal domain determines the specific
CC       binding to the target protein. {ECO:0000255|HAMAP-Rule:MF_00316}.
CC   -!- SIMILARITY: Belongs to the MobA family. {ECO:0000255|HAMAP-
CC       Rule:MF_00316}.
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DR   EMBL; CR936257; CAI49160.1; -; Genomic_DNA.
DR   RefSeq; WP_011322788.1; NC_007426.1.
DR   AlphaFoldDB; Q3IRT2; -.
DR   SMR; Q3IRT2; -.
DR   STRING; 348780.NP_2138A; -.
DR   EnsemblBacteria; CAI49160; CAI49160; NP_2138A.
DR   GeneID; 3702930; -.
DR   KEGG; nph:NP_2138A; -.
DR   eggNOG; arCOG01872; Archaea.
DR   HOGENOM; CLU_055597_2_1_2; -.
DR   OMA; HENGYIE; -.
DR   OrthoDB; 78708at2157; -.
DR   Proteomes; UP000002698; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005525; F:GTP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0061603; F:molybdenum cofactor guanylyltransferase activity; IEA:UniProtKB-EC.
DR   GO; GO:0006777; P:Mo-molybdopterin cofactor biosynthetic process; IEA:UniProtKB-KW.
DR   CDD; cd02503; MobA; 1.
DR   Gene3D; 3.90.550.10; -; 1.
DR   HAMAP; MF_00316; MobA; 1.
DR   InterPro; IPR025877; MobA-like_NTP_Trfase.
DR   InterPro; IPR013482; Molybde_CF_guanTrfase.
DR   InterPro; IPR029044; Nucleotide-diphossugar_trans.
DR   Pfam; PF12804; NTP_transf_3; 1.
DR   SUPFAM; SSF53448; SSF53448; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; GTP-binding; Magnesium; Metal-binding;
KW   Molybdenum cofactor biosynthesis; Nucleotide-binding; Reference proteome;
KW   Transferase.
FT   CHAIN           1..202
FT                   /note="Probable molybdenum cofactor guanylyltransferase"
FT                   /id="PRO_1000019127"
FT   BINDING         9..11
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00316"
FT   BINDING         22
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00316"
FT   BINDING         50
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00316"
FT   BINDING         77
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00316"
FT   BINDING         102
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00316"
FT   BINDING         102
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00316"
SQ   SEQUENCE   202 AA;  22038 MW;  05417C8E3B4E4382 CRC64;
     MGERTGVIVA GGQSTRMGDV DKTVVDVAGV PLVRRVANRL LAVVDHLVVN CRRDQQERLA
     AALEGLSPTF AVDEVPDRGP TAGIMTGLST VETPYAAVVA ADMPYLDPEL LEYLFERADS
     HDAAVPRPEE WFEPLHAVYR PEPMAEACAE ALEAADARII TPLSSLDHIV IERDAIVEHG
     SLRSFESVDT PEDLERARER LS