4Z71

Crystal structure of inorganic pyrophosphatase from Mycobacterium tuberculosis in complex with Mg ions

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Structure Motif: Primary M-CSA Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d4z71a1	All beta proteins	OB-fold	Inorganic pyrophosphatase	automated matches	automated matches	(Mycobacterium tuberculosis H37Rv ) [TaxId: 83332 ],	SCOPe (2.08)
A	d4z71a2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Mycobacterium tuberculosis H37Rv ) [TaxId: 83332 ],	SCOPe (2.08)
B	d4z71b1	All beta proteins	OB-fold	Inorganic pyrophosphatase	automated matches	automated matches	(Mycobacterium tuberculosis H37Rv ) [TaxId: 83332 ],	SCOPe (2.08)
B	d4z71b2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Mycobacterium tuberculosis H37Rv ) [TaxId: 83332 ],	SCOPe (2.08)
C	d4z71c1	All beta proteins	OB-fold	Inorganic pyrophosphatase	automated matches	automated matches	(Mycobacterium tuberculosis H37Rv ) [TaxId: 83332 ],	SCOPe (2.08)
C	d4z71c2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Mycobacterium tuberculosis H37Rv ) [TaxId: 83332 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Inorganic pyrophosphatase	8066117	3000589	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Inorganic pyrophosphatase	8066117	3000589	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Inorganic pyrophosphatase	8066117	3000589	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF00719	e4z71A1	A: beta barrels	X: OB-fold	H: Inorganic pyrophosphatase (From Topology)	T: Inorganic pyrophosphatase	F: PF00719	ECOD (1.6)
B	PF00719	e4z71B1	A: beta barrels	X: OB-fold	H: Inorganic pyrophosphatase (From Topology)	T: Inorganic pyrophosphatase	F: PF00719	ECOD (1.6)
C	PF00719	e4z71C1	A: beta barrels	X: OB-fold	H: Inorganic pyrophosphatase (From Topology)	T: Inorganic pyrophosphatase	F: PF00719	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

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

Protein Family Annotation Pfam Database Homepage

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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	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	cellular metabolic process phosphate-containing compound metabolic process metabolic process cellular process phosphorus metabolic process	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol cell periphery plasma membrane membrane extracellular region host cellular component host cell part host cell surface

InterPro: Protein Family Classification InterPro Database Homepage

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

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	inorganic diphosphatase M-CSA #916	Soluble inorganic pyrophosphate is present in all organisms, and is essential for cell growth. It provides an entropic pull for biosynthetic reactions involving nucleotide triphosphates by irreversibly hydrolysing the pyrophosphate product to orthophosphate. The phosphoryltransferase activity is an ancient one, and there are functional similarities between the active site of this enzyme and alkaline phosphatase and other divalent cation containing enzymes such as exonucleases and polymerases.	Defined by 6 residues: GLU:A-17 [auth A-8]TYR:A-51 [auth A-42]ASP:A-61 [auth A-52]ASP:A-66 [auth A-57]ASP:A-93 [auth A-84]ASP:A-98 [auth A-89] \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 3.6.1.1 (PDB Primary Data) Search M-CSA Motif + EC 3.6.1.1

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 R01GM133198.