ID D2PZU8_KRIFD Unreviewed; 223 AA.
AC D2PZU8;
DT 02-MAR-2010, integrated into UniProtKB/TrEMBL.
DT 02-MAR-2010, sequence version 1.
DT 27-MAR-2024, entry version 78.
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 OrderedLocusNames=Kfla_6672 {ECO:0000313|EMBL:ADB35664.1};
OS Kribbella flavida (strain DSM 17836 / JCM 10339 / NBRC 14399).
OC Bacteria; Actinomycetota; Actinomycetes; Propionibacteriales;
OC Kribbellaceae; Kribbella.
OX NCBI_TaxID=479435 {ECO:0000313|EMBL:ADB35664.1, ECO:0000313|Proteomes:UP000007967};
RN [1] {ECO:0000313|Proteomes:UP000007967}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 17836 / JCM 10339 / NBRC 14399
RC {ECO:0000313|Proteomes:UP000007967};
RG US DOE Joint Genome Institute (JGI-PGF);
RA Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA Bruce D., Goodwin L., Pitluck S., Kyrpides N., Mavromatis K., Ivanova N.,
RA Saunders E., Brettin T., Detter J.C., Han C., Larimer F., Land M.,
RA Hauser L., Markowitz V., Cheng J.-F., Hugenholtz P., Woyke T., Wu D.,
RA Pukall R., Klenk H.-P., Eisen J.A.;
RT "The complete genome of Kribbella flavida DSM 17836.";
RL Submitted (SEP-2009) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:ADB35664.1, ECO:0000313|Proteomes:UP000007967}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 17836 / JCM 10339 / NBRC 14399
RC {ECO:0000313|Proteomes:UP000007967};
RX PubMed=21304701;
RA Pukall R., Lapidus A., Glavina Del Rio T., Copeland A., Tice H.,
RA Cheng J.-F., Lucas S., Chen F., Nolan M., LaButti K., Pati A., Ivanova N.,
RA Mavrommatis K., Mikhailova N., Pitluck S., Bruce D., Goodwin L., Land M.,
RA Hauser L., Chang Y.-J., Jeffries C.D., Chen A., Palaniappan K., Chain P.,
RA Rohde M., Goeker M., Bristow J., Eisen J.A., Markowitz V., Hugenholtz P.,
RA Kyrpides N.C., Klenk H.-P., Brettin T.;
RT "Complete genome sequence of Kribbella flavida type strain (IFO 14399).";
RL Stand. Genomic Sci. 2:186-193(2010).
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; CP001736; ADB35664.1; -; Genomic_DNA.
DR RefSeq; WP_012924216.1; NC_013729.1.
DR AlphaFoldDB; D2PZU8; -.
DR STRING; 479435.Kfla_6672; -.
DR KEGG; kfl:Kfla_6672; -.
DR eggNOG; COG0047; Bacteria.
DR HOGENOM; CLU_001031_3_1_11; -.
DR OrthoDB; 9804441at2; -.
DR UniPathway; UPA00074; UER00128.
DR Proteomes; UP000007967; 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 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|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW Rule:MF_00421};
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_00421};
KW Glutamine amidotransferase {ECO:0000256|ARBA:ARBA00022962,
KW ECO:0000256|HAMAP-Rule:MF_00421};
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000256|HAMAP-Rule:MF_00421};
KW Ligase {ECO:0000256|ARBA:ARBA00022598, ECO:0000256|HAMAP-Rule:MF_00421};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_00421};
KW Purine biosynthesis {ECO:0000256|ARBA:ARBA00022755, ECO:0000256|HAMAP-
KW Rule:MF_00421}; Reference proteome {ECO:0000313|Proteomes:UP000007967}.
FT ACT_SITE 85
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00421,
FT ECO:0000256|PROSITE-ProRule:PRU00605"
FT ACT_SITE 194
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00421,
FT ECO:0000256|PROSITE-ProRule:PRU00605"
FT ACT_SITE 196
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00421,
FT ECO:0000256|PROSITE-ProRule:PRU00605"
SQ SEQUENCE 223 AA; 23773 MW; 45EA3579824D1E1D CRC64;
MKIGVVTFPG SLDDVDARRA AAVAGAEAVA LWHGDADLHG VDAVVLPGGF SYGDYLRAGA
ISRFAPVMET VIKRAGEGMP VLGICNGFQV LCEAHLLPGA LIKNHVRKFV CKDQPLRIEN
NRTAWTSDYD ANHDITIVLK NQDGSYVADE TTLDRLEGEG LVVARYLGQN PNGSYRDIAG
ISNERGNVVG LMPHPEHCVE TLTGPSTDGL GFFTSVLKAV VAS
//
