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MOBA_RHOCA
ID   MOBA_RHOCA              Reviewed;         190 AA.
AC   Q9X7K0;
DT   21-FEB-2001, integrated into UniProtKB/Swiss-Prot.
DT   14-AUG-2001, sequence version 2.
DT   03-AUG-2022, entry version 87.
DE   RecName: Full=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};
OS   Rhodobacter capsulatus (Rhodopseudomonas capsulata).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales;
OC   Rhodobacteraceae; Rhodobacter.
OX   NCBI_TaxID=1061;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=B10S;
RX   PubMed=10339814; DOI=10.1111/j.1574-6968.1999.tb13574.x;
RA   Leimkuhler S., Klipp W.;
RT   "The molybdenum cofactor biosynthesis protein MobA from Rhodobacter
RT   capsulatus is required for the activity of molybdenum enzymes containing
RT   MGD, but not for xanthine dehydrogenase harboring the MPT cofactor.";
RL   FEMS Microbiol. Lett. 174:239-246(1999).
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   -!- SUBUNIT: Monomer. {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}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=CAB43541.1; Type=Frameshift; Evidence={ECO:0000305};
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DR   EMBL; AJ131528; CAB43541.1; ALT_FRAME; Genomic_DNA.
DR   AlphaFoldDB; Q9X7K0; -.
DR   SMR; Q9X7K0; -.
DR   IntAct; Q9X7K0; 2.
DR   MINT; Q9X7K0; -.
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.
DR   TIGRFAMs; TIGR02665; molyb_mobA; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; GTP-binding; Magnesium; Metal-binding;
KW   Molybdenum cofactor biosynthesis; Nucleotide-binding; Transferase.
FT   CHAIN           1..190
FT                   /note="Molybdenum cofactor guanylyltransferase"
FT                   /id="PRO_0000134906"
FT   BINDING         8..10
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00316"
FT   BINDING         20
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00316"
FT   BINDING         64
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00316"
FT   BINDING         98
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00316"
FT   BINDING         98
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00316"
SQ   SEQUENCE   190 AA;  19752 MW;  FFA9E3C2F1EF89E2 CRC64;
     MRIAGIILAG GQGRRMGREK ALVPLSGVPL IARVLALAPQ VEAVAISANG DPGRFGLGLP
     VLPDRPGESG LGPMAGIRAG LDWAAGIGAE ALVSTATDTP FLPEDLVERL AAAAPAHAQS
     FGRDHYTAAL WRVATVPRID ALFAADERRI ARLSGGAVAV PFDTTPDPFA NLNTPEDLAR
     AEDRLRQNAP
 
 
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