Annotations: 4Z1O

Hypoxanthine-guanine-xanthine phosphoribosyltransferase (HGXPRT) from Sulfolobus solfataricus in complex with alpha-phosphoribosylpyrophosphoric acid (PRPP) and Magnesium

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	PRTase-like	8065686	3000060	SCOP2B (2022-06-29)
A	SCOP2 Family	Phosphoribosyltransferases (PRTases)	8065685	4000253	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	PRTase-like	8065686	3000060	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	KH_2	e4z1oB1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: KH_2	ECOD (v295.2)
A	KH_2	e4z1oA1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: KH_2	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

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

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR000836	Phosphoribosyltransferase domain	Domain
A, B	IPR029057	Phosphoribosyltransferase-like	Homologous Superfamily