1FSG

TOXOPLASMA GONDII HYPOXANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE COMPLEXED WITH 9-DEAZAGUANINE, ALPHA-D-5-PHOSPHORIBOSYL-1-PYROPHOSPHATE (PRPP) AND TWO MG2+ IONS

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1fsga1	Alpha and beta proteins (a/b)	PRTase-like	PRTase-like	Phosphoribosyltransferases (PRTases)	Hypoxanthine-guanine-xanthine PRTase	(Toxoplasma gondii RH ) [TaxId: 383379 ],	SCOPe (2.08)
A	d1fsga2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Toxoplasma gondii RH ) [TaxId: 383379 ],	SCOPe (2.08)
B [auth C]	d1fsgc1	Alpha and beta proteins (a/b)	PRTase-like	PRTase-like	Phosphoribosyltransferases (PRTases)	Hypoxanthine-guanine-xanthine PRTase	(Toxoplasma gondii RH ) [TaxId: 383379 ],	SCOPe (2.08)
B [auth C]	d1fsgc2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Toxoplasma gondii RH ) [TaxId: 383379 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Phosphoribosyltransferases (PRTases)	8019840	4000253	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	PRTase-like	8032220	3000060	SCOP2 (2022-06-29)
B [auth C]	SCOP2B Superfamily	PRTase-like	8032220	3000060	SCOP2B (2022-06-29)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.2020	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
B [auth C]	3.40.50.2020	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B [auth C]	PF00156	Phosphoribosyl transferase domain (Pribosyltran)	Phosphoribosyl transferase domain	This family includes a range of diverse phosphoribosyl transferase enzymes. This family includes: Adenine phosphoribosyl-transferase EC:2.4.2.7, Swiss:P07672. Hypoxanthine-guanine-xanthine phosphoribosyl-transferase Swiss:P51900. Hypoxanthine phosph ...	This family includes a range of diverse phosphoribosyl transferase enzymes. This family includes: Adenine phosphoribosyl-transferase EC:2.4.2.7, Swiss:P07672. Hypoxanthine-guanine-xanthine phosphoribosyl-transferase Swiss:P51900. Hypoxanthine phosphoribosyl-transferase EC:2.4.2.8 Swiss:P36766. Ribose-phosphate pyrophosphokinase i EC:2.7.6.1 Swiss:P09329. Amidophosphoribosyltransferase EC:2.4.2.14 Swiss:P00496. Orotate phosphoribosyl-transferase EC:2.4.2.10 Swiss:P11172. Uracil phosphoribosyl-transferase EC:2.4.2.9 Swiss:P25532. Xanthine-guanine phosphoribosyl-transferase EC:2.4.2.22 Swiss:P00501. In Arabidopsis, At the very N-terminus of this domain is the P-Loop NTPase domain [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B [auth C]	HYPOXANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE	pentosyltransferase activity hypoxanthine phosphoribosyltransferase activity glycosyltransferase activity purine phosphoribosyltransferase activity transferase activity catalytic activity binding nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding small molecule binding xanthine phosphoribosyltransferase activity guanine phosphoribosyltransferase activity pentosyltransferase activity hypoxanthine phosphoribosyltransferase activity glycosyltransferase activity purine phosphoribosyltransferase activity transferase activity catalytic activity binding nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding small molecule binding xanthine phosphoribosyltransferase activity guanine phosphoribosyltransferase activity cation binding ion binding metal ion binding	glycosyl compound metabolic process carbohydrate derivative metabolic process nucleoside biosynthetic process nucleobase-containing compound metabolic process nucleobase-containing small molecule metabolic process purine-containing compound biosynthetic process small molecule metabolic process cellular metabolic compound salvage purine ribonucleoside metabolic process carbohydrate derivative biosynthetic process glycosyl compound biosynthetic process purine-containing compound salvage small molecule biosynthetic process nucleoside salvage glycosyl compound metabolic process carbohydrate derivative metabolic process nucleoside biosynthetic process nucleobase-containing compound metabolic process nucleobase-containing small molecule metabolic process purine-containing compound biosynthetic process small molecule metabolic process cellular metabolic compound salvage purine ribonucleoside metabolic process carbohydrate derivative biosynthetic process glycosyl compound biosynthetic process purine-containing compound salvage small molecule biosynthetic process nucleoside salvage purine ribonucleoside biosynthetic process primary metabolic process ribonucleoside biosynthetic process nucleobase-containing compound biosynthetic process nucleoside metabolic process nucleobase-containing small molecule biosynthetic process purine-containing compound metabolic process purine ribonucleoside salvage biosynthetic process purine nucleoside biosynthetic process metabolic process cellular process purine nucleoside metabolic process ribonucleoside metabolic process ribose phosphate metabolic process purine ribonucleoside monophosphate biosynthetic process nucleotide biosynthetic process purine ribonucleotide biosynthetic process nucleotide salvage ribonucleotide biosynthetic process purine nucleoside monophosphate biosynthetic process purine ribonucleoside monophosphate metabolic process purine nucleotide metabolic process ribonucleotide metabolic process ribonucleoside monophosphate metabolic process purine nucleoside monophosphate metabolic process phosphate-containing compound metabolic process purine nucleotide salvage GMP metabolic process phosphorus metabolic process ribose phosphate biosynthetic process nucleoside monophosphate metabolic process nucleoside phosphate metabolic process GMP salvage GMP biosynthetic process nucleotide metabolic process nucleoside monophosphate biosynthetic process purine ribonucleotide salvage organophosphate metabolic process organophosphate biosynthetic process nucleoside phosphate biosynthetic process purine ribonucleotide metabolic process ribonucleoside monophosphate biosynthetic process purine nucleotide biosynthetic process IMP salvage IMP metabolic process IMP biosynthetic process XMP metabolic process XMP salvage XMP biosynthetic process	cellular anatomical structure intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B [auth C]	IPR050408	Hypoxanthine-guanine phosphoribosyltransferase	Family
A, B [auth C]	IPR000836	Phosphoribosyltransferase domain	Domain
A, B [auth C]	IPR005904	Hypoxanthine phosphoribosyl transferase	Family
A, B [auth C]	IPR029057	Phosphoribosyltransferase-like	Homologous Superfamily

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.