Annotations: 9NB3

Cryo-EM structure of quaternary complex of human phosphoribosylglycinamidine synthase with thioester intermediate bound (at glutaminase site) and AMPPNP and FGAR (at synthase site).

External Resource: Annotation

Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF18076	Formylglycinamide ribonucleotide amidotransferase N-terminal (FGAR-AT_N)	Formylglycinamide ribonucleotide amidotransferase N-terminal	This is the N-terminal domain found in Formylglycinamide ribonucleotide amidotransferase (FGAR-AT), also known as Phosphoribosylformylglycinamidine synthase (EC:6.3.5.3), PurL and formylglycinamidine ribonucleotide (FGAM) synthase. This enzyme cataly ...	This is the N-terminal domain found in Formylglycinamide ribonucleotide amidotransferase (FGAR-AT), also known as Phosphoribosylformylglycinamidine synthase (EC:6.3.5.3), PurL and formylglycinamidine ribonucleotide (FGAM) synthase. This enzyme catalyzes the ATP-dependent conversion of formylglycinamide ribonucleotide and glutamine to formylglycinamidine ribonucleotide, ADP, Pi, and glutamate in the fourth step of the purine biosynthetic pathway [3].	Domain
A	PF02769	AIR synthase related protein, C-terminal domain (AIRS_C)	AIR synthase related protein, C-terminal domain	This family includes Hydrogen expression/formation protein HypE Swiss:P24193, AIR synthases Swiss:P08178 EC:6.3.3.1, FGAM synthase Swiss:P35852 EC:6.3.5.3 and selenide, water dikinase Swiss:P16456 EC:2.7.9.3. The function of the C-terminal domain of ...	This family includes Hydrogen expression/formation protein HypE Swiss:P24193, AIR synthases Swiss:P08178 EC:6.3.3.1, FGAM synthase Swiss:P35852 EC:6.3.5.3 and selenide, water dikinase Swiss:P16456 EC:2.7.9.3. The function of the C-terminal domain of AIR synthase is unclear, but the cleft formed between N and C domains is postulated as a sulphate binding site [1].	Domain
A	PF13507	CobB/CobQ-like glutamine amidotransferase domain (GATase_5)	CobB/CobQ-like glutamine amidotransferase domain	This family captures members that are not found in Pfam:PF00310, Pfam:PF07685 and Pfam:PF13230.	Domain
A	PF22689	FGAR-AT PurM_N-like domain (FGAR-AT_PurM_N-like)	FGAR-AT PurM_N-like domain	This entry represents the PurM_N-like domain of formylglycinamide ribonucleotide amidotransferase (FGAR-AT) and related proteins. FGAR-AT catalyzes the ATP-dependent conversion of formylglycinamide ribonucleotide (FGAR) to formylglycinamidine ribonuc ...	This entry represents the PurM_N-like domain of formylglycinamide ribonucleotide amidotransferase (FGAR-AT) and related proteins. FGAR-AT catalyzes the ATP-dependent conversion of formylglycinamide ribonucleotide (FGAR) to formylglycinamidine ribonucleotide (FGAM) in the fourth step of the purine biosynthetic pathway. This domain consists of an antiparallel beta-sheet with two helices packed on one side [1-5].	Domain
A	PF18072	Formylglycinamide ribonucleotide amidotransferase linker domain (FGAR-AT_linker)	Formylglycinamide ribonucleotide amidotransferase linker domain	This is the linker domain found in Formylglycinamide ribonucleotide amidotransferase (FGAR-AT), also known as Phosphoribosylformylglycinamidine synthase (EC:6.3.5.3), PurL and formylglycinamidine ribonucleotide (FGAM) synthase. This enzyme catalyzes ...	This is the linker domain found in Formylglycinamide ribonucleotide amidotransferase (FGAR-AT), also known as Phosphoribosylformylglycinamidine synthase (EC:6.3.5.3), PurL and formylglycinamidine ribonucleotide (FGAM) synthase. This enzyme catalyzes the ATP-dependent conversion of formylglycinamide ribonucleotide (FGAR) and glutamine to formylglycinamidine ribonucleotide (FGAM), ADP, Pi, and glutamate in the fourth step of the purine biosynthetic pathway. The structure analysis of Salmonella typhimurium FGAR-AT reveals that this linker domain is made up of a long hydrophilic belt with an extended conformation [4].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Phosphoribosylformylglycinamidine synthase	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding carbon-nitrogen ligase activity, with glutamine as amido-N-donor phosphoribosylformylglycinamidine synthase activity catalytic activity ligase activity, forming carbon-nitrogen bonds ligase activity cation binding metal ion binding	response to stimulus response to chemical response to xenobiotic stimulus nucleoside phosphate metabolic process nucleotide biosynthetic process primary metabolic process nucleotide metabolic process nucleobase-containing compound biosynthetic process purine-containing compound metabolic process nucleobase-containing compound metabolic process purine nucleotide metabolic process biosynthetic process organophosphate metabolic process nucleobase-containing small molecule metabolic process response to stimulus response to chemical response to xenobiotic stimulus nucleoside phosphate metabolic process nucleotide biosynthetic process primary metabolic process nucleotide metabolic process nucleobase-containing compound biosynthetic process purine-containing compound metabolic process nucleobase-containing compound metabolic process purine nucleotide metabolic process biosynthetic process organophosphate metabolic process nucleobase-containing small molecule metabolic process organophosphate biosynthetic process purine-containing compound biosynthetic process nucleoside phosphate biosynthetic process metabolic process cellular process small molecule metabolic process phosphorus metabolic process purine nucleotide biosynthetic process ribose phosphate metabolic process IMP metabolic process purine ribonucleoside monophosphate biosynthetic process carbohydrate derivative metabolic process purine ribonucleotide biosynthetic process ribonucleotide biosynthetic process purine nucleoside monophosphate biosynthetic process purine ribonucleoside monophosphate metabolic process ribonucleotide metabolic process purine nucleoside monophosphate metabolic process ribose phosphate biosynthetic process nucleoside monophosphate metabolic process carbohydrate derivative biosynthetic process nucleoside monophosphate biosynthetic process IMP biosynthetic process 'de novo' IMP biosynthetic process purine ribonucleotide metabolic process ribonucleoside monophosphate biosynthetic process 'de novo' AMP biosynthetic process AMP metabolic process AMP biosynthetic process GMP metabolic process GMP biosynthetic process L-glutamine metabolic process proteinogenic amino acid metabolic process oxoacid metabolic process carboxylic acid metabolic process amino acid metabolic process L-amino acid metabolic process 'de novo' XMP biosynthetic process XMP metabolic process XMP biosynthetic process	extracellular exosome membrane-bounded organelle extracellular vesicle cellular anatomical structure extracellular organelle extracellular region organelle vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR029062	Class I glutamine amidotransferase-like	Homologous Superfamily
A	IPR010073	Phosphoribosylformylglycinamidine synthase PurL	Family
A	IPR041609	Phosphoribosylformylglycinamidine synthase, linker domain	Domain
A	IPR036676	PurM-like, C-terminal domain superfamily	Homologous Superfamily
A	IPR036604	Phosphoribosylformylglycinamidine synthase subunit PurS-like superfamily	Homologous Superfamily
A	IPR040707	Phosphoribosylformylglycinamidine synthase, N-terminal	Domain
A	IPR010918	PurM-like, C-terminal domain	Domain
A	IPR055181	FGAR-AT, PurM N-terminal-like domain	Domain
A	IPR036921	PurM-like, N-terminal domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	: O15067	endogenous depression medulloblastoma large cell medulloblastoma osteosarcoma lung cancer ovarian cancer

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.