ID MOAA_ALKMQ Reviewed; 320 AA.
AC A6TVF9;
DT 05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT 21-AUG-2007, sequence version 1.
DT 27-MAR-2024, entry version 93.
DE RecName: Full=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=Amet_4096;
OS Alkaliphilus metalliredigens (strain QYMF).
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Clostridiaceae;
OC Alkaliphilus.
OX NCBI_TaxID=293826;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=QYMF;
RX PubMed=27811105; DOI=10.1128/genomea.01226-16;
RA Hwang C., Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA Glavina Del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA Chertkov O., Brettin T., Bruce D., Han C., Schmutz J., Larimer F.,
RA Land M.L., Hauser L., Kyrpides N., Mikhailova N., Ye Q., Zhou J.,
RA Richardson P., Fields M.W.;
RT "Complete genome sequence of Alkaliphilus metalliredigens strain QYMF, an
RT alkaliphilic and metal-reducing bacterium isolated from borax-contaminated
RT leachate ponds.";
RL Genome Announc. 4:0-0(2016).
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 -!- SUBUNIT: Monomer and homodimer. {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; CP000724; ABR50177.1; -; Genomic_DNA.
DR RefSeq; WP_012065125.1; NC_009633.1.
DR AlphaFoldDB; A6TVF9; -.
DR SMR; A6TVF9; -.
DR STRING; 293826.Amet_4096; -.
DR KEGG; amt:Amet_4096; -.
DR eggNOG; COG2896; Bacteria.
DR HOGENOM; CLU_009273_0_1_9; -.
DR OrthoDB; 9763993at2; -.
DR UniPathway; UPA00344; -.
DR Proteomes; UP000001572; 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 CDD; cd01335; Radical_SAM; 1.
DR CDD; cd21117; Twitch_MoaA; 1.
DR Gene3D; 3.20.20.70; Aldolase class I; 1.
DR HAMAP; MF_01225_B; MoaA_B; 1.
DR InterPro; IPR013785; Aldolase_TIM.
DR InterPro; IPR006638; Elp3/MiaA/NifB-like_rSAM.
DR InterPro; IPR013483; MoaA.
DR InterPro; IPR000385; MoaA_NifB_PqqE_Fe-S-bd_CS.
DR InterPro; IPR010505; MoaA_twitch.
DR InterPro; IPR007197; rSAM.
DR NCBIfam; TIGR02666; moaA; 1.
DR PANTHER; PTHR22960:SF0; MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN 1; 1.
DR PANTHER; PTHR22960; MOLYBDOPTERIN COFACTOR SYNTHESIS PROTEIN A; 1.
DR Pfam; PF13353; Fer4_12; 1.
DR Pfam; PF06463; Mob_synth_C; 1.
DR Pfam; PF04055; Radical_SAM; 1.
DR SFLD; SFLDG01383; cyclic_pyranopterin_phosphate; 1.
DR SFLD; SFLDS00029; Radical_SAM; 1.
DR SMART; SM00729; Elp3; 1.
DR SUPFAM; SSF102114; Radical SAM enzymes; 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..320
FT /note="GTP 3',8-cyclase"
FT /id="PRO_1000066805"
FT DOMAIN 4..226
FT /note="Radical SAM core"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01266"
FT BINDING 13
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01225"
FT BINDING 20
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 24
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="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01225"
FT BINDING 27
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 63
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01225"
FT BINDING 67
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01225"
FT BINDING 94
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01225"
FT BINDING 118
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01225"
FT BINDING 155
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01225"
FT BINDING 189
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01225"
FT BINDING 249
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 252
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 254..256
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01225"
FT BINDING 266
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 320 AA; 35696 MW; 02BF68709F4B8DAF CRC64;
MKDTFQRSIN YMRISITDLC NLRCQYCMPE KGIYKKTHQD ILTLEEIEQI VRIGAENGIN
KVRITGGEPL VRKGVIGLIK NISNIPGIQD IALTTNGLLI KKYGEALKDA GLKRINISID
SLRPDRYKEI TRGGDLSQVL EGIQEALRLG MTPVKLNVVV IGGYNEDEIE DFANLTVDDP
IDVRFIELMP IGEASGWAKD RFLSNEEVKS KIEGLVPIIT DATSPARLYR LPGAKGRVGF
INPISSHFCE SCNRIRVTSD GKLKPCLHSN HEIDLLRVAR ENPEQIGAVL SNGIQLKPEK
HYLYTNKHEM SARSMSEIGG
//
