ID Q5L1B8_GEOKA Unreviewed; 244 AA.
AC Q5L1B8;
DT 01-FEB-2005, integrated into UniProtKB/TrEMBL.
DT 01-FEB-2005, sequence version 1.
DT 27-MAR-2024, entry version 102.
DE RecName: Full=7-carboxy-7-deazaguanine synthase {ECO:0000256|HAMAP-Rule:MF_00917};
DE Short=CDG synthase {ECO:0000256|HAMAP-Rule:MF_00917};
DE EC=4.3.99.3 {ECO:0000256|HAMAP-Rule:MF_00917};
DE AltName: Full=Queuosine biosynthesis protein QueE {ECO:0000256|HAMAP-Rule:MF_00917};
GN Name=queE {ECO:0000256|HAMAP-Rule:MF_00917};
GN OrderedLocusNames=GK0977 {ECO:0000313|EMBL:BAD75262.1};
OS Geobacillus kaustophilus (strain HTA426).
OC Bacteria; Bacillota; Bacilli; Bacillales; Bacillaceae; Geobacillus;
OC Geobacillus thermoleovorans group.
OX NCBI_TaxID=235909 {ECO:0000313|EMBL:BAD75262.1, ECO:0000313|Proteomes:UP000001172};
RN [1] {ECO:0000313|EMBL:BAD75262.1, ECO:0000313|Proteomes:UP000001172}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=HTA426 {ECO:0000313|EMBL:BAD75262.1,
RC ECO:0000313|Proteomes:UP000001172};
RX PubMed=15576355; DOI=10.1093/nar/gkh970;
RA Takami H., Takaki Y., Chee G.J., Nishi S., Shimamura S., Suzuki H.,
RA Matsui S., Uchiyama I.;
RT "Thermoadaptation trait revealed by the genome sequence of thermophilic
RT Geobacillus kaustophilus.";
RL Nucleic Acids Res. 32:6292-6303(2004).
CC -!- FUNCTION: Catalyzes the complex heterocyclic radical-mediated
CC conversion of 6-carboxy-5,6,7,8-tetrahydropterin (CPH4) to 7-carboxy-7-
CC deazaguanine (CDG), a step common to the biosynthetic pathways of all
CC 7-deazapurine-containing compounds. {ECO:0000256|HAMAP-Rule:MF_00917}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=6-carboxy-5,6,7,8-tetrahydropterin + H(+) = 7-carboxy-7-
CC deazaguanine + NH4(+); Xref=Rhea:RHEA:27974, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:28938, ChEBI:CHEBI:61032, ChEBI:CHEBI:61036; EC=4.3.99.3;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00917};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00917};
CC -!- COFACTOR:
CC Name=S-adenosyl-L-methionine; Xref=ChEBI:CHEBI:59789;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00917};
CC Note=Binds 1 S-adenosyl-L-methionine per subunit. {ECO:0000256|HAMAP-
CC Rule:MF_00917};
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00917};
CC Note=Binds 1 [4Fe-4S] cluster. The cluster is coordinated with 3
CC cysteines and an exchangeable S-adenosyl-L-methionine.
CC {ECO:0000256|HAMAP-Rule:MF_00917};
CC -!- PATHWAY: Purine metabolism; 7-cyano-7-deazaguanine biosynthesis.
CC {ECO:0000256|HAMAP-Rule:MF_00917}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_00917}.
CC -!- SIMILARITY: Belongs to the radical SAM superfamily. 7-carboxy-7-
CC deazaguanine synthase family. {ECO:0000256|HAMAP-Rule:MF_00917}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_00917}.
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DR EMBL; BA000043; BAD75262.1; -; Genomic_DNA.
DR RefSeq; WP_011230478.1; NC_006510.1.
DR AlphaFoldDB; Q5L1B8; -.
DR STRING; 235909.GK0977; -.
DR KEGG; gka:GK0977; -.
DR eggNOG; COG0602; Bacteria.
DR HOGENOM; CLU_066739_2_3_9; -.
DR UniPathway; UPA00391; -.
DR Proteomes; UP000001172; Chromosome.
DR GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-UniRule.
DR GO; GO:0016840; F:carbon-nitrogen lyase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:1904047; F:S-adenosyl-L-methionine binding; IEA:UniProtKB-UniRule.
DR GO; GO:0008616; P:queuosine biosynthetic process; IEA:UniProtKB-UniRule.
DR CDD; cd01335; Radical_SAM; 1.
DR Gene3D; 3.20.20.70; Aldolase class I; 1.
DR HAMAP; MF_00917; QueE; 1.
DR InterPro; IPR024924; 7-CO-7-deazaguanine_synth-like.
DR InterPro; IPR013785; Aldolase_TIM.
DR InterPro; IPR017742; Deazaguanine_synth.
DR InterPro; IPR007197; rSAM.
DR NCBIfam; TIGR03365; Bsubt_queE; 1.
DR PANTHER; PTHR42836; 7-CARBOXY-7-DEAZAGUANINE SYNTHASE; 1.
DR PANTHER; PTHR42836:SF1; 7-CARBOXY-7-DEAZAGUANINE SYNTHASE; 1.
DR Pfam; PF13353; Fer4_12; 1.
DR Pfam; PF04055; Radical_SAM; 1.
DR PIRSF; PIRSF000370; QueE; 1.
DR SFLD; SFLDF00300; 7-carboxy-7-deazaguanine_synth; 1.
DR SFLD; SFLDS00029; Radical_SAM; 1.
DR SUPFAM; SSF102114; Radical SAM enzymes; 1.
DR PROSITE; PS51918; RADICAL_SAM; 1.
PE 3: Inferred from homology;
KW 4Fe-4S {ECO:0000256|ARBA:ARBA00022485, ECO:0000256|HAMAP-Rule:MF_00917};
KW Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|HAMAP-Rule:MF_00917};
KW Iron-sulfur {ECO:0000256|ARBA:ARBA00023014, ECO:0000256|HAMAP-
KW Rule:MF_00917};
KW Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000256|HAMAP-Rule:MF_00917};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|HAMAP-Rule:MF_00917};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_00917}; Queuosine biosynthesis {ECO:0000256|HAMAP-Rule:MF_00917};
KW Reference proteome {ECO:0000313|Proteomes:UP000001172};
KW S-adenosyl-L-methionine {ECO:0000256|ARBA:ARBA00022691, ECO:0000256|HAMAP-
KW Rule:MF_00917}.
FT DOMAIN 21..240
FT /note="Radical SAM core"
FT /evidence="ECO:0000259|PROSITE:PS51918"
FT BINDING 15..17
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00917"
FT BINDING 30
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00917"
FT BINDING 34
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_note="4Fe-4S-S-AdoMet"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00917"
FT BINDING 38
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_note="4Fe-4S-S-AdoMet"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00917"
FT BINDING 40..42
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00917"
FT BINDING 41
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_note="4Fe-4S-S-AdoMet"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00917"
FT BINDING 43
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00917"
FT BINDING 81
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00917"
FT BINDING 83
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00917"
FT BINDING 127..129
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00917"
SQ SEQUENCE 244 AA; 27376 MW; 6F8FD31CCD75AC75 CRC64;
MARTIPVLEI FGPTIQGEGM VIGQKTMFVR TAGCDYRCRW CDSAFTWDGS AKDEIEQLTA
DEIWRRLEAI GGRRFRHVTI SGGNPLLIAA LGELIALLHE KGMRVAVETQ GSRWQDWLLD
IDDVTLSPKP PSSGMDTDWA ALDQIIERLQ ADQSRVRRIS LKVVVFDDAD LAYAKEVHCR
YPSVPFYLQA GNADVADSDV DALRAKLFSR LEWLVEQAAD SEELADVHIL PQLHTLLWGN
KRGV
//
