PURQ_LISW6
ID PURQ_LISW6 Reviewed; 227 AA.
AC A0AJM4;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 28-NOV-2006, sequence version 1.
DT 25-MAY-2022, entry version 91.
DE RecName: Full=Phosphoribosylformylglycinamidine synthase subunit PurQ {ECO:0000255|HAMAP-Rule:MF_00421};
DE Short=FGAM synthase {ECO:0000255|HAMAP-Rule:MF_00421};
DE EC=6.3.5.3 {ECO:0000255|HAMAP-Rule:MF_00421};
DE AltName: Full=Formylglycinamide ribonucleotide amidotransferase subunit I {ECO:0000255|HAMAP-Rule:MF_00421};
DE Short=FGAR amidotransferase I {ECO:0000255|HAMAP-Rule:MF_00421};
DE Short=FGAR-AT I {ECO:0000255|HAMAP-Rule:MF_00421};
DE AltName: Full=Glutaminase PurQ {ECO:0000255|HAMAP-Rule:MF_00421};
DE EC=3.5.1.2 {ECO:0000255|HAMAP-Rule:MF_00421};
DE AltName: Full=Phosphoribosylformylglycinamidine synthase subunit I {ECO:0000255|HAMAP-Rule:MF_00421};
GN Name=purQ {ECO:0000255|HAMAP-Rule:MF_00421}; OrderedLocusNames=lwe1788;
OS Listeria welshimeri serovar 6b (strain ATCC 35897 / DSM 20650 / CIP 8149 /
OS NCTC 11857 / SLCC 5334 / V8).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Listeriaceae; Listeria.
OX NCBI_TaxID=386043;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 35897 / DSM 20650 / CIP 8149 / NCTC 11857 / SLCC 5334 / V8;
RX PubMed=16936040; DOI=10.1128/jb.00758-06;
RA Hain T., Steinweg C., Kuenne C.T., Billion A., Ghai R., Chatterjee S.S.,
RA Domann E., Kaerst U., Goesmann A., Bekel T., Bartels D., Kaiser O.,
RA Meyer F., Puehler A., Weisshaar B., Wehland J., Liang C., Dandekar T.,
RA Lampidis R., Kreft J., Goebel W., Chakraborty T.;
RT "Whole-genome sequence of Listeria welshimeri reveals common steps in
RT genome reduction with Listeria innocua as compared to Listeria
RT monocytogenes.";
RL J. Bacteriol. 188:7405-7415(2006).
CC -!- FUNCTION: Part of the phosphoribosylformylglycinamidine synthase
CC complex involved in the purines biosynthetic pathway. Catalyzes the
CC ATP-dependent conversion of formylglycinamide ribonucleotide (FGAR) and
CC glutamine to yield formylglycinamidine ribonucleotide (FGAM) and
CC glutamate. The FGAM synthase complex is composed of three subunits.
CC PurQ produces an ammonia molecule by converting glutamine to glutamate.
CC PurL transfers the ammonia molecule to FGAR to form FGAM in an ATP-
CC dependent manner. PurS interacts with PurQ and PurL and is thought to
CC assist in the transfer of the ammonia molecule from PurQ to PurL.
CC {ECO:0000255|HAMAP-Rule:MF_00421}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + H2O + L-glutamine + N(2)-formyl-N(1)-(5-phospho-beta-D-
CC ribosyl)glycinamide = 2-formamido-N(1)-(5-O-phospho-beta-D-
CC ribosyl)acetamidine + ADP + H(+) + L-glutamate + phosphate;
CC Xref=Rhea:RHEA:17129, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:29985, ChEBI:CHEBI:30616, ChEBI:CHEBI:43474,
CC ChEBI:CHEBI:58359, ChEBI:CHEBI:147286, ChEBI:CHEBI:147287,
CC ChEBI:CHEBI:456216; EC=6.3.5.3; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_00421};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + L-glutamine = L-glutamate + NH4(+);
CC Xref=Rhea:RHEA:15889, ChEBI:CHEBI:15377, ChEBI:CHEBI:28938,
CC ChEBI:CHEBI:29985, ChEBI:CHEBI:58359; EC=3.5.1.2;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00421};
CC -!- PATHWAY: Purine metabolism; IMP biosynthesis via de novo pathway; 5-
CC amino-1-(5-phospho-D-ribosyl)imidazole from N(2)-formyl-N(1)-(5-
CC phospho-D-ribosyl)glycinamide: step 1/2. {ECO:0000255|HAMAP-
CC Rule:MF_00421}.
CC -!- SUBUNIT: Part of the FGAM synthase complex composed of 1 PurL, 1 PurQ
CC and 2 PurS subunits. {ECO:0000255|HAMAP-Rule:MF_00421}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00421}.
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DR EMBL; AM263198; CAK21206.1; -; Genomic_DNA.
DR RefSeq; WP_011702565.1; NC_008555.1.
DR AlphaFoldDB; A0AJM4; -.
DR SMR; A0AJM4; -.
DR STRING; 386043.lwe1788; -.
DR EnsemblBacteria; CAK21206; CAK21206; lwe1788.
DR GeneID; 61189686; -.
DR KEGG; lwe:lwe1788; -.
DR eggNOG; COG0047; Bacteria.
DR HOGENOM; CLU_001031_3_1_9; -.
DR OMA; LHFVCRD; -.
DR OrthoDB; 1527083at2; -.
DR UniPathway; UPA00074; UER00128.
DR Proteomes; UP000000779; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR GO; GO:0004359; F:glutaminase activity; IEA:UniProtKB-EC.
DR GO; GO:0004642; F:phosphoribosylformylglycinamidine synthase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006189; P:'de novo' IMP biosynthetic process; IEA:UniProtKB-UniRule.
DR GO; GO:0006541; P:glutamine metabolic process; IEA:UniProtKB-KW.
DR Gene3D; 3.40.50.880; -; 1.
DR HAMAP; MF_00421; PurQ; 1.
DR InterPro; IPR029062; Class_I_gatase-like.
DR InterPro; IPR010075; PRibForGlyAmidine_synth_PurQ.
DR PIRSF; PIRSF001586; FGAM_synth_I; 1.
DR SUPFAM; SSF52317; SSF52317; 1.
DR TIGRFAMs; TIGR01737; FGAM_synth_I; 1.
DR PROSITE; PS51273; GATASE_TYPE_1; 1.
PE 3: Inferred from homology;
KW ATP-binding; Cytoplasm; Glutamine amidotransferase; Hydrolase; Ligase;
KW Nucleotide-binding; Purine biosynthesis.
FT CHAIN 1..227
FT /note="Phosphoribosylformylglycinamidine synthase subunit
FT PurQ"
FT /id="PRO_1000124125"
FT DOMAIN 2..226
FT /note="Glutamine amidotransferase type-1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00421"
FT ACT_SITE 86
FT /note="Nucleophile"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00421"
FT ACT_SITE 195
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00421"
FT ACT_SITE 197
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00421"
SQ SEQUENCE 227 AA; 24973 MW; 179F66763793CBDD CRC64;
MKFAVIQFPG SNCDLDMLHA IRDSLGEEAE YVWHAETSLE GFDAVLLPGG FSYGDYLRTG
AIAKFSSIMP EVLRFAETGK PVLGVCNGFQ ILTEIGLLPG ALIRNNNLHF ICKTVPLRVV
NGNTIFTGLY EDNEVIHVPV AHGEGNYYCD DETLLKLKEN NQIVFTYDSV NPNGSRADIA
GIVNERGNVL GMMPHPERAV EDIIGGTDGL RLFQSIVQAW KEEQVNA
