1KA0

The PAPase Hal2p complexed with a sodium ion and the reaction product AMP

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

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1ka0a_	Multi-domain proteins (alpha and beta)	Carbohydrate phosphatase	Carbohydrate phosphatase	Inositol monophosphatase/fructose-1,6-bisphosphatase-like	3'	baker's yeast (Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Carbohydrate phosphatase-like	8037967	3001721	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	Inositol_P_N	e1ka0A1	A: a+b two layers	X: a+b domain in carbohydrate phosphatases (From Topology)	H: a+b domain in carbohydrate phosphatases (From Topology)	T: a+b domain in carbohydrate phosphatases	F: Inositol_P_N	ECOD (1.6)
A	Inositol_P_C	e1ka0A2	A: a/b three-layered sandwiches	X: Rossmann-like domain in carbohydrate phosphatases (From Homology)	H: Rossmann-like domain in carbohydrate phosphatases	T: Rossmann-like domain in carbohydrate phosphatases	F: Inositol_P_C	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.540.10	Alpha Beta	2-Layer Sandwich	Fructose-1,6-Bisphosphatase	Chain A, domain 1	CATH (4.3.0)
A	3.40.190.80	Alpha Beta	3-Layer(aba) Sandwich	D-Maltodextrin-Binding Protein	domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00459	Inositol monophosphatase family (Inositol_P)	Inositol monophosphatase family	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Halotolerance protein HAL2	phosphoric ester hydrolase activity nucleotidase activity hydrolase activity, acting on ester bonds phosphatase activity 3'(2'),5'-bisphosphate nucleotidase activity hydrolase activity catalytic activity cation binding ion binding binding metal ion binding small molecule binding	response to osmotic stress hyperosmotic response response to stimulus response to stress response to abiotic stimulus response to salt stress hyperosmotic salinity response oxoacid metabolic process cellular biosynthetic process sulfur amino acid metabolic process aspartate family amino acid biosynthetic process organonitrogen compound biosynthetic process aspartate family amino acid metabolic process amino acid metabolic process response to osmotic stress hyperosmotic response response to stimulus response to stress response to abiotic stimulus response to salt stress hyperosmotic salinity response oxoacid metabolic process cellular biosynthetic process sulfur amino acid metabolic process aspartate family amino acid biosynthetic process organonitrogen compound biosynthetic process aspartate family amino acid metabolic process amino acid metabolic process organic acid biosynthetic process organic acid metabolic process alpha-amino acid metabolic process carboxylic acid biosynthetic process organic substance metabolic process organic substance biosynthetic process small molecule metabolic process sulfur compound metabolic process methionine biosynthetic process organonitrogen compound metabolic process small molecule biosynthetic process cellular metabolic process carboxylic acid metabolic process L-amino acid biosynthetic process primary metabolic process methionine metabolic process L-amino acid metabolic process proteinogenic amino acid metabolic process amino acid biosynthetic process sulfur compound biosynthetic process biosynthetic process proteinogenic amino acid biosynthetic process metabolic process cellular process sulfur amino acid biosynthetic process alpha-amino acid biosynthetic process glycerophospholipid metabolic process lipid biosynthetic process phospholipid metabolic process phosphate-containing compound metabolic process phosphorus metabolic process phosphatidylinositol metabolic process glycerophospholipid biosynthetic process phosphatidylinositol phosphate biosynthetic process phospholipid biosynthetic process phosphatidylinositol biosynthetic process glycerolipid biosynthetic process organophosphate metabolic process organophosphate biosynthetic process cellular lipid metabolic process glycerolipid metabolic process lipid metabolic process sulfate assimilation	intracellular anatomical structure cytoplasm cellular anatomical entity membrane-bounded organelle intracellular organelle organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR020550	Inositol monophosphatase, conserved site	Conserved Site
A	IPR020583	Inositol monophosphatase, metal-binding site	Binding Site
A	IPR006239	3(2),5 -bisphosphate nucleotidase	Family
A	IPR000760	Inositol monophosphatase-like	Family

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.