ID F2I4I0_AERUA Unreviewed; 227 AA.
AC F2I4I0;
DT 31-MAY-2011, integrated into UniProtKB/TrEMBL.
DT 31-MAY-2011, sequence version 1.
DT 24-JAN-2024, entry version 66.
DE RecName: Full=Phosphoribosylformylglycinamidine synthase subunit PurQ {ECO:0000256|HAMAP-Rule:MF_00421};
DE Short=FGAM synthase {ECO:0000256|HAMAP-Rule:MF_00421};
DE EC=6.3.5.3 {ECO:0000256|HAMAP-Rule:MF_00421};
DE AltName: Full=Formylglycinamide ribonucleotide amidotransferase subunit I {ECO:0000256|HAMAP-Rule:MF_00421};
DE Short=FGAR amidotransferase I {ECO:0000256|HAMAP-Rule:MF_00421};
DE Short=FGAR-AT I {ECO:0000256|HAMAP-Rule:MF_00421};
DE AltName: Full=Glutaminase PurQ {ECO:0000256|HAMAP-Rule:MF_00421};
DE EC=3.5.1.2 {ECO:0000256|HAMAP-Rule:MF_00421};
DE AltName: Full=Phosphoribosylformylglycinamidine synthase subunit I {ECO:0000256|HAMAP-Rule:MF_00421};
GN Name=purQ {ECO:0000256|HAMAP-Rule:MF_00421,
GN ECO:0000313|EMBL:AEA00295.1};
GN OrderedLocusNames=HMPREF9243_0936 {ECO:0000313|EMBL:AEA00295.1};
OS Aerococcus urinae (strain CCUG 59500 / ACS-120-V-Col10a).
OC Bacteria; Bacillota; Bacilli; Lactobacillales; Aerococcaceae; Aerococcus;
OC Aerococcus incertae sedis.
OX NCBI_TaxID=2976812 {ECO:0000313|EMBL:AEA00295.1, ECO:0000313|Proteomes:UP000008129};
RN [1] {ECO:0000313|Proteomes:UP000008129}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ACS-120-V-Col10a {ECO:0000313|Proteomes:UP000008129};
RA Durkin A.S., Madupu R., Radune D., Hostetler J., Torralba M., Gillis M.,
RA Methe B., Sutton G., Nelson K.E.;
RT "Complete genome sequence of Aerococcus urinae strain ACS-120-V-Col10a.";
RL Submitted (FEB-2011) to the EMBL/GenBank/DDBJ databases.
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:0000256|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:0000256|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:0000256|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:0000256|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:0000256|HAMAP-Rule:MF_00421}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00421}.
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DR EMBL; CP002512; AEA00295.1; -; Genomic_DNA.
DR RefSeq; WP_013668554.1; NC_015278.1.
DR AlphaFoldDB; F2I4I0; -.
DR STRING; 866775.HMPREF9243_0936; -.
DR KEGG; aur:HMPREF9243_0936; -.
DR PATRIC; fig|866775.3.peg.887; -.
DR eggNOG; COG0047; Bacteria.
DR HOGENOM; CLU_001031_3_1_9; -.
DR OMA; LHFVCRD; -.
DR UniPathway; UPA00074; UER00128.
DR Proteomes; UP000008129; 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-UniRule.
DR CDD; cd01740; GATase1_FGAR_AT; 1.
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 NCBIfam; TIGR01737; FGAM_synth_I; 1.
DR PANTHER; PTHR47552; PHOSPHORIBOSYLFORMYLGLYCINAMIDINE SYNTHASE SUBUNIT PURQ; 1.
DR PANTHER; PTHR47552:SF1; PHOSPHORIBOSYLFORMYLGLYCINAMIDINE SYNTHASE SUBUNIT PURQ; 1.
DR Pfam; PF13507; GATase_5; 1.
DR PIRSF; PIRSF001586; FGAM_synth_I; 1.
DR SMART; SM01211; GATase_5; 1.
DR SUPFAM; SSF52317; Class I glutamine amidotransferase-like; 1.
DR PROSITE; PS51273; GATASE_TYPE_1; 1.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|HAMAP-Rule:MF_00421};
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00421};
KW Glutamine amidotransferase {ECO:0000256|HAMAP-Rule:MF_00421,
KW ECO:0000256|PROSITE-ProRule:PRU00605};
KW Hydrolase {ECO:0000256|HAMAP-Rule:MF_00421};
KW Ligase {ECO:0000256|HAMAP-Rule:MF_00421, ECO:0000313|EMBL:AEA00295.1};
KW Nucleotide-binding {ECO:0000256|HAMAP-Rule:MF_00421};
KW Purine biosynthesis {ECO:0000256|HAMAP-Rule:MF_00421};
KW Reference proteome {ECO:0000313|Proteomes:UP000008129}.
FT ACT_SITE 86
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00421,
FT ECO:0000256|PROSITE-ProRule:PRU00605"
FT ACT_SITE 195
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00421,
FT ECO:0000256|PROSITE-ProRule:PRU00605"
FT ACT_SITE 197
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00421,
FT ECO:0000256|PROSITE-ProRule:PRU00605"
SQ SEQUENCE 227 AA; 24523 MW; E2AD3396A90D38D6 CRC64;
MKFAVIQFPG SNCDMDMLTA IRDILGQEAD YVPASATSLA GYDAIMLPGG FSFGDYLRTG
AIARFTPIME EVKRLAQNGK LVLGTCNGFQ ILCESGLLPG SFLPNRDLTF ICKKQELMVE
NNQSPFSSLY QEGEEITLPI AHGEGNYYCD EATLADLKAN GQIIFTYAGE NPNGSTGNIA
GITNKAGNVI GLMPHPERAV EEIIAGQDGL KVFQSMVKYF ETAGKRA
//