UniProtKB - Q72IH9 (PURQ_THET2)
Protein
Phosphoribosylformylglycinamidine synthase subunit PurQ
Gene
purQ
Organism
Thermus thermophilus (strain HB27 / ATCC BAA-163 / DSM 7039)
Status
Functioni
Part of the phosphoribosylformylglycinamidine synthase complex involved in the purines biosynthetic pathway. Catalyzes the ATP-dependent conversion of formylglycinamide ribonucleotide (FGAR) and glutamine to yield formylglycinamidine ribonucleotide (FGAM) and glutamate. The FGAM synthase complex is composed of three subunits. PurQ produces an ammonia molecule by converting glutamine to glutamate. PurL transfers the ammonia molecule to FGAR to form FGAM in an ATP-dependent manner. PurS interacts with PurQ and PurL and is thought to assist in the transfer of the ammonia molecule from PurQ to PurL.UniRule annotation
Catalytic activityi
- ATP + H2O + L-glutamine + N2-formyl-N1-(5-phospho-β-D-ribosyl)glycinamide = 2-formamido-N1-(5-O-phospho-β-D-ribosyl)acetamidine + ADP + H+ + L-glutamate + phosphateUniRule annotationEC:6.3.5.3UniRule annotation
- EC:3.5.1.2UniRule annotation
: IMP biosynthesis via de novo pathway Pathwayi
This protein is involved in step 1 of the subpathway that synthesizes 5-amino-1-(5-phospho-D-ribosyl)imidazole from N(2)-formyl-N(1)-(5-phospho-D-ribosyl)glycinamide.UniRule annotationProteins known to be involved in the 2 steps of the subpathway in this organism are:
- Phosphoribosylformylglycinamidine synthase subunit PurQ (purQ), Phosphoribosylformylglycinamidine synthase subunit PurS (purS), Phosphoribosylformylglycinamidine synthase subunit PurL (purL)
- Phosphoribosylformylglycinamidine cyclo-ligase (purM)
View all proteins of this organism that are known to be involved in the subpathway that synthesizes 5-amino-1-(5-phospho-D-ribosyl)imidazole from N(2)-formyl-N(1)-(5-phospho-D-ribosyl)glycinamide, the pathway IMP biosynthesis via de novo pathway and in Purine metabolism.
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Active sitei | 85 | NucleophileUniRule annotation | 1 | |
Active sitei | 200 | UniRule annotation | 1 | |
Active sitei | 202 | UniRule annotation | 1 |
GO - Molecular functioni
- ATP binding Source: UniProtKB-KW
- glutaminase activity Source: UniProtKB-EC
- phosphoribosylformylglycinamidine synthase activity Source: UniProtKB-UniRule
GO - Biological processi
- 'de novo' IMP biosynthetic process Source: UniProtKB-UniRule
- glutamine metabolic process Source: UniProtKB-KW
Keywordsi
Molecular function | Hydrolase, Ligase |
Biological process | Purine biosynthesis |
Ligand | ATP-binding, Nucleotide-binding |
Enzyme and pathway databases
UniPathwayi | UPA00074;UER00128 |
Names & Taxonomyi
Protein namesi | Recommended name: Phosphoribosylformylglycinamidine synthase subunit PurQUniRule annotation (EC:6.3.5.3UniRule annotation)Short name: FGAM synthaseUniRule annotation Alternative name(s): Formylglycinamide ribonucleotide amidotransferase subunit IUniRule annotation Short name: FGAR amidotransferase IUniRule annotation Short name: FGAR-AT IUniRule annotation Glutaminase PurQUniRule annotation (EC:3.5.1.2UniRule annotation) Phosphoribosylformylglycinamidine synthase subunit IUniRule annotation |
Gene namesi | Name:purQUniRule annotation Ordered Locus Names:TT_C1153 |
Organismi | Thermus thermophilus (strain HB27 / ATCC BAA-163 / DSM 7039) |
Taxonomic identifieri | 262724 [NCBI] |
Taxonomic lineagei | Bacteria › Deinococcus-Thermus › Deinococci › Thermales › Thermaceae › Thermus › |
Proteomesi |
|
Subcellular locationi
Cytoplasm and Cytosol
- Cytoplasm UniRule annotation
Other locations
- cytoplasm Source: UniProtKB-SubCell
Keywords - Cellular componenti
CytoplasmPTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000100599 | 1 – 227 | Phosphoribosylformylglycinamidine synthase subunit PurQAdd BLAST | 227 |
Interactioni
Subunit structurei
Part of the FGAM synthase complex composed of 1 PurL, 1 PurQ and 2 PurS subunits.
UniRule annotationProtein-protein interaction databases
STRINGi | 262724.TT_C1153 |
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 2 – 227 | Glutamine amidotransferase type-1UniRule annotationAdd BLAST | 226 |
Keywords - Domaini
Glutamine amidotransferasePhylogenomic databases
eggNOGi | COG0047, Bacteria |
HOGENOMi | CLU_001031_3_1_0 |
OMAi | LHFVCRD |
OrthoDBi | 1527083at2 |
Family and domain databases
Gene3Di | 3.40.50.880, 1 hit |
HAMAPi | MF_00421, PurQ, 1 hit |
InterProi | View protein in InterPro IPR029062, Class_I_gatase-like IPR017926, GATASE IPR010075, PRibForGlyAmidine_synth_PurQ |
PIRSFi | PIRSF001586, FGAM_synth_I, 1 hit |
SUPFAMi | SSF52317, SSF52317, 1 hit |
TIGRFAMsi | TIGR01737, FGAM_synth_I, 1 hit |
PROSITEi | View protein in PROSITE PS51273, GATASE_TYPE_1, 1 hit |
i Sequence
Sequence statusi: Complete.
Q72IH9-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MRWAIVRFPG ANCDEDARFA LEKAGIRAEF VWHTERDLRG FDGVFLPGGF
60 70 80 90 100
SYGDYLRAGA LAAKSPVMEA VRRFAEEGRY VVGVCNGFQI LTEAGLLPGA
110 120 130 140 150
LLANLNLHFT CKEVGVRVER NDLPFTRLYP RGQVLRLPIA HGEGRYYADP
160 170 180 190 200
ETLARLEGEG LVVFRYAPLK DEADYNPNGS LHDIAGIVSE KGNVLGMMPH
210 220
PERAVDEVLG NTDGLPFFLG LVREVAR
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AE017221 Genomic DNA Translation: AAS81495.1 |
RefSeqi | WP_011173564.1, NC_005835.1 |
Genome annotation databases
EnsemblBacteriai | AAS81495; AAS81495; TT_C1153 |
KEGGi | tth:TT_C1153 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AE017221 Genomic DNA Translation: AAS81495.1 |
RefSeqi | WP_011173564.1, NC_005835.1 |
3D structure databases
SMRi | Q72IH9 |
ModBasei | Search... |
Protein-protein interaction databases
STRINGi | 262724.TT_C1153 |
Genome annotation databases
EnsemblBacteriai | AAS81495; AAS81495; TT_C1153 |
KEGGi | tth:TT_C1153 |
Phylogenomic databases
eggNOGi | COG0047, Bacteria |
HOGENOMi | CLU_001031_3_1_0 |
OMAi | LHFVCRD |
OrthoDBi | 1527083at2 |
Enzyme and pathway databases
UniPathwayi | UPA00074;UER00128 |
Family and domain databases
Gene3Di | 3.40.50.880, 1 hit |
HAMAPi | MF_00421, PurQ, 1 hit |
InterProi | View protein in InterPro IPR029062, Class_I_gatase-like IPR017926, GATASE IPR010075, PRibForGlyAmidine_synth_PurQ |
PIRSFi | PIRSF001586, FGAM_synth_I, 1 hit |
SUPFAMi | SSF52317, SSF52317, 1 hit |
TIGRFAMsi | TIGR01737, FGAM_synth_I, 1 hit |
PROSITEi | View protein in PROSITE PS51273, GATASE_TYPE_1, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | PURQ_THET2 | |
Accessioni | Q72IH9Primary (citable) accession number: Q72IH9 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | August 30, 2005 |
Last sequence update: | July 5, 2004 | |
Last modified: | December 2, 2020 | |
This is version 101 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Prokaryotic Protein Annotation Program |