ID QUEE_RICPR Reviewed; 234 AA.
AC Q9ZCV2;
DT 21-MAR-2012, integrated into UniProtKB/Swiss-Prot.
DT 01-MAY-1999, sequence version 1.
DT 27-MAR-2024, entry version 102.
DE RecName: Full=7-carboxy-7-deazaguanine synthase {ECO:0000255|HAMAP-Rule:MF_00917};
DE Short=CDG synthase {ECO:0000255|HAMAP-Rule:MF_00917};
DE EC=4.3.99.3 {ECO:0000255|HAMAP-Rule:MF_00917};
DE AltName: Full=Queuosine biosynthesis protein QueE {ECO:0000255|HAMAP-Rule:MF_00917};
GN Name=queE {ECO:0000255|HAMAP-Rule:MF_00917}; OrderedLocusNames=RP607;
OS Rickettsia prowazekii (strain Madrid E).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rickettsiales;
OC Rickettsiaceae; Rickettsieae; Rickettsia; typhus group.
OX NCBI_TaxID=272947;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Madrid E;
RX PubMed=9823893; DOI=10.1038/24094;
RA Andersson S.G.E., Zomorodipour A., Andersson J.O., Sicheritz-Ponten T.,
RA Alsmark U.C.M., Podowski R.M., Naeslund A.K., Eriksson A.-S., Winkler H.H.,
RA Kurland C.G.;
RT "The genome sequence of Rickettsia prowazekii and the origin of
RT mitochondria.";
RL Nature 396:133-140(1998).
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:0000255|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:0000255|HAMAP-Rule:MF_00917};
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC Evidence={ECO:0000255|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:0000255|HAMAP-Rule:MF_00917};
CC -!- COFACTOR:
CC Name=S-adenosyl-L-methionine; Xref=ChEBI:CHEBI:59789;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00917};
CC Note=Binds 1 S-adenosyl-L-methionine per subunit. {ECO:0000255|HAMAP-
CC Rule:MF_00917};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00917};
CC -!- PATHWAY: Purine metabolism; 7-cyano-7-deazaguanine biosynthesis.
CC {ECO:0000255|HAMAP-Rule:MF_00917}.
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00917}.
CC -!- SIMILARITY: Belongs to the radical SAM superfamily. 7-carboxy-7-
CC deazaguanine synthase family. {ECO:0000255|HAMAP-Rule:MF_00917}.
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DR EMBL; AJ235272; CAA15051.1; -; Genomic_DNA.
DR PIR; A71666; A71666.
DR RefSeq; NP_220975.1; NC_000963.1.
DR AlphaFoldDB; Q9ZCV2; -.
DR SMR; Q9ZCV2; -.
DR STRING; 272947.gene:17555686; -.
DR EnsemblBacteria; CAA15051; CAA15051; CAA15051.
DR KEGG; rpr:RP607; -.
DR PATRIC; fig|272947.5.peg.626; -.
DR eggNOG; COG0602; Bacteria.
DR HOGENOM; CLU_066739_2_3_5; -.
DR OrthoDB; 9792276at2; -.
DR UniPathway; UPA00391; -.
DR Proteomes; UP000002480; 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 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; IPR007197; rSAM.
DR PANTHER; PTHR42836; 7-CARBOXY-7-DEAZAGUANINE SYNTHASE; 1.
DR PANTHER; PTHR42836:SF1; 7-CARBOXY-7-DEAZAGUANINE SYNTHASE; 1.
DR Pfam; PF04055; Radical_SAM; 1.
DR PIRSF; PIRSF000370; QueE; 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; Iron; Iron-sulfur; Lyase; Magnesium; Metal-binding;
KW Queuosine biosynthesis; Reference proteome; S-adenosyl-L-methionine.
FT CHAIN 1..234
FT /note="7-carboxy-7-deazaguanine synthase"
FT /id="PRO_0000416213"
FT DOMAIN 42..234
FT /note="Radical SAM core"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01266"
FT BINDING 36..38
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00917"
FT BINDING 51
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00917"
FT BINDING 55
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_note="4Fe-4S-S-AdoMet"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00917"
FT BINDING 59
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_note="4Fe-4S-S-AdoMet"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00917"
FT BINDING 62
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_note="4Fe-4S-S-AdoMet"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00917"
FT BINDING 64
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00917"
FT BINDING 100
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00917"
FT BINDING 102
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00917"
FT BINDING 144..146
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00917"
FT BINDING 195..198
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00917"
SQ SEQUENCE 234 AA; 26247 MW; 1BC9DAEE2E04C64B CRC64;
MNQRINSYKM FGHNPKRSIL SGDGTKLEVQ SIFKTIQGEG IFVGYPSIFI RLGGCNLACN
FCDTEFEDFK LIDIDQILNK VKNLSLNSKN AKTINLVVIT GGEPMRQPIG LLCQKLLDQD
FKVQIETNGT LYRSLPKEVF IVCSPKVGKT GYNKIREDLL PQISAVKFII SKNIVEYSII
PEVGQSAYDI PVFVQSMDQN DKRLNNENNE LAVKLALESG ARLSLQTHKF LGIE
//
