Annotations: 1I74

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1i74a_	Alpha and beta proteins (a/b)	DHH phosphoesterases	DHH phosphoesterases	Manganese-dependent inorganic pyrophosphatase (family II)	Manganese-dependent inorganic pyrophosphatase (family II)	(Streptococcus mutans ) [TaxId: 1309 ],	SCOPe (2.08)
B	d1i74b_	Alpha and beta proteins (a/b)	DHH phosphoesterases	DHH phosphoesterases	Manganese-dependent inorganic pyrophosphatase (family II)	Manganese-dependent inorganic pyrophosphatase (family II)	(Streptococcus mutans ) [TaxId: 1309 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Manganese-dependent inorganic pyrophosphatase (family II)	8021342	4003453	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	DHH phosphoesterases	8033722	3000896	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	DHH phosphoesterases	8033722	3000896	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	DHHA2	e1i74A1	A: a+b three layers	X: C-terminal domain in DHH phosphoesterases (From Topology)	H: C-terminal domain in DHH phosphoesterases (From Topology)	T: C-terminal domain in DHH phosphoesterases	F: DHHA2	ECOD (1.6)
A	DHH	e1i74A2	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: DHH phosphoesterases	F: DHH	ECOD (1.6)
B	DHHA2	e1i74B1	A: a+b three layers	X: C-terminal domain in DHH phosphoesterases (From Topology)	H: C-terminal domain in DHH phosphoesterases (From Topology)	T: C-terminal domain in DHH phosphoesterases	F: DHHA2	ECOD (1.6)
B	DHH	e1i74B2	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: DHH phosphoesterases	F: DHH	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.90.1640.10	Alpha Beta	Alpha-Beta Complex	inorganic pyrophosphatase (n-terminal core)	inorganic pyrophosphatase (n-terminal core)	CATH (4.3.0)
A	3.10.310.20	Alpha Beta	Roll	Diaminopimelate Epimerase	Chain A, domain 1	CATH (4.3.0)
B	3.90.1640.10	Alpha Beta	Alpha-Beta Complex	inorganic pyrophosphatase (n-terminal core)	inorganic pyrophosphatase (n-terminal core)	CATH (4.3.0)
B	3.10.310.20	Alpha Beta	Roll	Diaminopimelate Epimerase	Chain A, domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF02833	DHHA2 domain (DHHA2)	DHHA2 domain	-	Family
A, B	PF01368	DHH family (DHH)	DHH family	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	PROBABLE MANGANESE-DEPENDENT INORGANIC PYROPHOSPHATASE	cation binding manganese ion binding transition metal 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 anatomical structure intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR022934	Manganese-dependent inorganic pyrophosphatase, probable	Family
A, B	IPR001667	DDH domain	Domain
A, B	IPR004097	DHHA2 domain	Domain
A, B	IPR038763	DHH phosphoesterase superfamily	Homologous Superfamily
A, B	IPR038222	DHHA2 domain superfamily	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.