4XEL | pdb_00004xel

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d4xelb_	All beta proteins	OB-fold	Inorganic pyrophosphatase	Inorganic pyrophosphatase	automated matches	(Pseudomonas aeruginosa PAO1 ) [TaxId: 208964 ],	SCOPe (2.08)
A	d4xela_	All beta proteins	OB-fold	Inorganic pyrophosphatase	Inorganic pyrophosphatase	automated matches	(Pseudomonas aeruginosa PAO1 ) [TaxId: 208964 ],	SCOPe (2.08)

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Inorganic pyrophosphatase	8066119	3000589	SCOP2B (2022-06-29)
A	SCOP2 Family	Inorganic pyrophosphatase	8066118	4001947	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Inorganic pyrophosphatase	8066119	3000589	SCOP2 (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Thymidylat_synt	e4xelB1	A: a/b three-layered sandwiches	X: Four-helical up-and-down bundle	H: Thymidylate synthase/dCMP hydroxymethylase	T: Thymidylate synthase/dCMP hydroxymethylase	F: Thymidylat_synt	ECOD (v294.1)
A	RNA_pol_Rpb2_6	e4xelA1	A: a/b three-layered sandwiches	X: Glycosyl hydrolase domain-like	H: Glycoside hydrolase family 127 middle domain-related	T: Glycoside hydrolase family 127 middle domain-related	F: RNA_pol_Rpb2_6	ECOD (v294.1)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.90.80.10	Alpha Beta	Alpha-Beta Complex	Inorganic Pyrophosphatase	Inorganic pyrophosphatase	CATH (4.3.0)
A	3.90.80.10	Alpha Beta	Alpha-Beta Complex	Inorganic Pyrophosphatase	Inorganic pyrophosphatase	CATH (4.3.0)

Chains	Accession	Name	Description	Comments	Source
A, B	PF00719	Inorganic pyrophosphatase (Pyrophosphatase)	Inorganic pyrophosphatase		Domain

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Inorganic pyrophosphatase	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding pyrophosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity inorganic diphosphate phosphatase activity hydrolase activity, acting on acid anhydrides catalytic activity	phosphate-containing compound metabolic process metabolic process cellular process phosphorus metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol

Chains	Accession	Name	Type
A, B	IPR036649	Inorganic pyrophosphatase superfamily	Homologous Superfamily
A, B	IPR008162	Inorganic pyrophosphatase	Family

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.

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