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MOAA_THEAC
ID   MOAA_THEAC              Reviewed;         324 AA.
AC   Q9HKZ7;
DT   19-OCT-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2001, sequence version 1.
DT   03-AUG-2022, entry version 115.
DE   RecName: Full=Probable GTP 3',8-cyclase {ECO:0000255|HAMAP-Rule:MF_01225};
DE            EC=4.1.99.22 {ECO:0000255|HAMAP-Rule:MF_01225};
DE   AltName: Full=Molybdenum cofactor biosynthesis protein A {ECO:0000255|HAMAP-Rule:MF_01225};
GN   Name=moaA {ECO:0000255|HAMAP-Rule:MF_01225}; OrderedLocusNames=Ta0443;
OS   Thermoplasma acidophilum (strain ATCC 25905 / DSM 1728 / JCM 9062 / NBRC
OS   15155 / AMRC-C165).
OC   Archaea; Candidatus Thermoplasmatota; Thermoplasmata; Thermoplasmatales;
OC   Thermoplasmataceae; Thermoplasma.
OX   NCBI_TaxID=273075;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 25905 / DSM 1728 / JCM 9062 / NBRC 15155 / AMRC-C165;
RX   PubMed=11029001; DOI=10.1038/35035069;
RA   Ruepp A., Graml W., Santos-Martinez M.-L., Koretke K.K., Volker C.,
RA   Mewes H.-W., Frishman D., Stocker S., Lupas A.N., Baumeister W.;
RT   "The genome sequence of the thermoacidophilic scavenger Thermoplasma
RT   acidophilum.";
RL   Nature 407:508-513(2000).
CC   -!- FUNCTION: Catalyzes the cyclization of GTP to (8S)-3',8-cyclo-7,8-
CC       dihydroguanosine 5'-triphosphate. {ECO:0000255|HAMAP-Rule:MF_01225}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=AH2 + GTP + S-adenosyl-L-methionine = (8S)-3',8-cyclo-7,8-
CC         dihydroguanosine 5'-triphosphate + 5'-deoxyadenosine + A + H(+) + L-
CC         methionine; Xref=Rhea:RHEA:49576, ChEBI:CHEBI:13193,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:17319, ChEBI:CHEBI:17499,
CC         ChEBI:CHEBI:37565, ChEBI:CHEBI:57844, ChEBI:CHEBI:59789,
CC         ChEBI:CHEBI:131766; EC=4.1.99.22; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01225};
CC   -!- COFACTOR:
CC       Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01225};
CC       Note=Binds 2 [4Fe-4S] clusters. Binds 1 [4Fe-4S] cluster coordinated
CC       with 3 cysteines and an exchangeable S-adenosyl-L-methionine and 1
CC       [4Fe-4S] cluster coordinated with 3 cysteines and the GTP-derived
CC       substrate. {ECO:0000255|HAMAP-Rule:MF_01225};
CC   -!- PATHWAY: Cofactor biosynthesis; molybdopterin biosynthesis.
CC       {ECO:0000255|HAMAP-Rule:MF_01225}.
CC   -!- SIMILARITY: Belongs to the radical SAM superfamily. MoaA family.
CC       {ECO:0000255|HAMAP-Rule:MF_01225}.
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DR   EMBL; AL445064; CAC11585.1; -; Genomic_DNA.
DR   RefSeq; WP_010900870.1; NC_002578.1.
DR   AlphaFoldDB; Q9HKZ7; -.
DR   SMR; Q9HKZ7; -.
DR   STRING; 273075.Ta0443; -.
DR   EnsemblBacteria; CAC11585; CAC11585; CAC11585.
DR   GeneID; 1456052; -.
DR   KEGG; tac:Ta0443; -.
DR   eggNOG; arCOG00930; Archaea.
DR   HOGENOM; CLU_009273_0_1_2; -.
DR   OMA; IEFMPIG; -.
DR   OrthoDB; 18533at2157; -.
DR   UniPathway; UPA00344; -.
DR   Proteomes; UP000001024; Chromosome.
DR   GO; GO:0019008; C:molybdopterin synthase complex; IEA:InterPro.
DR   GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0061798; F:GTP 3',8'-cyclase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0005525; F:GTP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:1904047; F:S-adenosyl-L-methionine binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0006777; P:Mo-molybdopterin cofactor biosynthetic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.20.20.70; -; 1.
DR   HAMAP; MF_01225_A; MoaA_A; 1.
DR   InterPro; IPR013785; Aldolase_TIM.
DR   InterPro; IPR006638; Elp3/MiaB/NifB.
DR   InterPro; IPR013485; MoaA_arc.
DR   InterPro; IPR000385; MoaA_NifB_PqqE_Fe-S-bd_CS.
DR   InterPro; IPR010505; Mob_synth_C.
DR   InterPro; IPR007197; rSAM.
DR   Pfam; PF06463; Mob_synth_C; 1.
DR   Pfam; PF04055; Radical_SAM; 1.
DR   SMART; SM00729; Elp3; 1.
DR   TIGRFAMs; TIGR02668; moaA_archaeal; 1.
DR   PROSITE; PS01305; MOAA_NIFB_PQQE; 1.
DR   PROSITE; PS51918; RADICAL_SAM; 1.
PE   3: Inferred from homology;
KW   4Fe-4S; GTP-binding; Iron; Iron-sulfur; Lyase; Metal-binding;
KW   Molybdenum cofactor biosynthesis; Nucleotide-binding; Reference proteome;
KW   S-adenosyl-L-methionine.
FT   CHAIN           1..324
FT                   /note="Probable GTP 3',8-cyclase"
FT                   /id="PRO_0000153030"
FT   DOMAIN          6..234
FT                   /note="Radical SAM core"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01266"
FT   BINDING         15
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01225"
FT   BINDING         22
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="1"
FT                   /ligand_note="4Fe-4S-S-AdoMet"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01225"
FT   BINDING         26
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="1"
FT                   /ligand_note="4Fe-4S-S-AdoMet"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01225"
FT   BINDING         29
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="1"
FT                   /ligand_note="4Fe-4S-S-AdoMet"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01225"
FT   BINDING         62
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01225"
FT   BINDING         66
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01225"
FT   BINDING         92
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01225"
FT   BINDING         116
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01225"
FT   BINDING         153
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01225"
FT   BINDING         253
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="2"
FT                   /ligand_note="4Fe-4S-substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01225"
FT   BINDING         256
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="2"
FT                   /ligand_note="4Fe-4S-substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01225"
FT   BINDING         258..260
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01225"
FT   BINDING         270
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="2"
FT                   /ligand_note="4Fe-4S-substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01225"
SQ   SEQUENCE   324 AA;  37209 MW;  E6F2596BBFAF9B8D CRC64;
     MPIYDRYGRP VLSLRIQLNT TCNFSCFFCH MEGTDVNGEE LTPEEIERVV KISHEFGVNK
     VKITGGEPTL RADIIDIIGR IRKHITGNIS MTTNGTMLPK IAKDLKKAGL DRVNISLHSP
     DDERFHFITG TRMIDRVLEA VRSANDAGLT PVKINFVVLK DLNVNDIPRM LEIAAENNAI
     LQLIEYETDR EGESSEEYRR YHISLDPIEA QIRKKAIGVE YNDLHNRPRY LMKNDHGVVK
     IEFVKPQRNP DFCAHCTRLR ITSRGEFKTC LMRSDTNVPF KGVTDENRLR DLFRIAVSLR
     EPYWKPGDEQ QTEETYDSAI SESK
 
 
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