ID D2RQ21_HALTV Unreviewed; 274 AA.
AC D2RQ21;
DT 02-MAR-2010, integrated into UniProtKB/TrEMBL.
DT 02-MAR-2010, sequence version 1.
DT 27-MAR-2024, entry version 76.
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=Archaeosine biosynthesis protein QueE {ECO:0000256|HAMAP-Rule:MF_00917};
GN Name=queE {ECO:0000256|HAMAP-Rule:MF_00917};
GN OrderedLocusNames=Htur_1392 {ECO:0000313|EMBL:ADB60280.1};
OS Haloterrigena turkmenica (strain ATCC 51198 / DSM 5511 / JCM 9101 / NCIMB
OS 13204 / VKM B-1734 / 4k) (Halococcus turkmenicus).
OC Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Natrialbales;
OC Natrialbaceae; Haloterrigena.
OX NCBI_TaxID=543526 {ECO:0000313|EMBL:ADB60280.1, ECO:0000313|Proteomes:UP000001903};
RN [1] {ECO:0000313|EMBL:ADB60280.1, ECO:0000313|Proteomes:UP000001903}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 51198 / DSM 5511 / JCM 9101 / NCIMB 13204 / VKM B-1734 /
RC 4k {ECO:0000313|Proteomes:UP000001903};
RX PubMed=21304683; DOI=10.4056/sigs.681272;
RA Saunders E., Tindall B.J., Fahnrich R., Lapidus A., Copeland A.,
RA Del Rio T.G., Lucas S., Chen F., Tice H., Cheng J.F., Han C., Detter J.C.,
RA Bruce D., Goodwin L., Chain P., Pitluck S., Pati A., Ivanova N.,
RA Mavromatis K., Chen A., Palaniappan K., Land M., Hauser L., Chang Y.J.,
RA Jeffries C.D., Brettin T., Rohde M., Goker M., Bristow J., Eisen J.A.,
RA Markowitz V., Hugenholtz P., Klenk H.P., Kyrpides N.C.;
RT "Complete genome sequence of Haloterrigena turkmenica type strain (4k).";
RL Stand. Genomic Sci. 2:107-116(2010).
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; CP001860; ADB60280.1; -; Genomic_DNA.
DR RefSeq; WP_012942585.1; NC_013743.1.
DR AlphaFoldDB; D2RQ21; -.
DR STRING; 543526.Htur_1392; -.
DR GeneID; 8741982; -.
DR KEGG; htu:Htur_1392; -.
DR eggNOG; arCOG02173; Archaea.
DR HOGENOM; CLU_066739_2_1_2; -.
DR OrthoDB; 371936at2157; -.
DR UniPathway; UPA00391; -.
DR Proteomes; UP000001903; 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 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; IPR007197; rSAM.
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; 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};
KW S-adenosyl-L-methionine {ECO:0000256|ARBA:ARBA00022691, ECO:0000256|HAMAP-
KW Rule:MF_00917}.
FT DOMAIN 48..270
FT /note="Radical SAM core"
FT /evidence="ECO:0000259|PROSITE:PS51918"
FT REGION 1..34
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 144..170
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 7..32
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 155..170
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 42..44
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00917"
FT BINDING 57
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00917"
FT BINDING 61
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 65
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 67..69
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00917"
FT BINDING 68
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 70
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00917"
FT BINDING 102
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00917"
FT BINDING 104
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00917"
FT BINDING 146..148
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00917"
SQ SEQUENCE 274 AA; 30249 MW; 0DB0323E113B335D CRC64;
MPVSDSVDRD GEGEGAGARD GAGTHGERPD DGLPINELFY SLQGEGTLAG VPSVFVRTSG
CNLRCWFCDS YHTSWEPTHA WLGLEEILAE IESHDADHVV LTGGEPLIHE ESVALLEALD
DRGYHTTVET NGTINRDAPI DLASISPKLE SSTPTPERAP DDADEADAER WAERHERDRI
DLEALAALVE DYEFQLKFVV TDGDDLPEIL DLLAELRGVA DAPIRDDDVL LMPEGATRER
LAETRTRVAE LAMEHGFRYT PRLHVDLWND APET
//
