Annotations: 2EXL

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d2exlb_	Alpha and beta proteins (a+b)	ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase	ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase	Heat shock protein 90, HSP90, N-terminal domain	HSP90	dog (Canis lupus familiaris ) [TaxId: 9615 ], dog (Canis lupus familiaris ) [TaxId: 9615 ],	SCOPe (2.08)
A	d2exla_	Alpha and beta proteins (a+b)	ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase	ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase	Heat shock protein 90, HSP90, N-terminal domain	HSP90	dog (Canis lupus familiaris ) [TaxId: 9615 ], dog (Canis lupus familiaris ) [TaxId: 9615 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	HATPase_c	e2exlB2	A: a+b two layers	X: ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase-like	H: ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase (From Topology)	T: ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase	F: HATPase_c	ECOD (1.6)
A	HATPase_c	e2exlA2	A: a+b two layers	X: ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase-like	H: ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase (From Topology)	T: ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase	F: HATPase_c	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.30.565.10	Alpha Beta	2-Layer Sandwich	Heat Shock Protein 90	Histidine kinase-like ATPase, C-terminal domain	CATH (4.3.0)
A	3.30.565.10	Alpha Beta	2-Layer Sandwich	Heat Shock Protein 90	Histidine kinase-like ATPase, C-terminal domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF13589	Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase (HATPase_c_3)	Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase	This family represents, additionally, the structurally related ATPase domains of histidine kinase, DNA gyrase B and HSP90.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Endoplasmin	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding unfolded protein binding protein binding pyrophosphatase activity ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity ATP-dependent activity ATP-dependent protein folding chaperone protein folding chaperone	cellular response to stimulus catabolic process response to stimulus proteolysis involved in protein catabolic process response to nitrogen compound proteasomal protein catabolic process primary metabolic process protein catabolic process macromolecule catabolic process ERAD pathway cellular response to stress response to chemical response to stress proteolysis cellular response to stimulus catabolic process response to stimulus proteolysis involved in protein catabolic process response to nitrogen compound proteasomal protein catabolic process primary metabolic process protein catabolic process macromolecule catabolic process ERAD pathway cellular response to stress response to chemical response to stress proteolysis cellular process metabolic process protein metabolic process macromolecule metabolic process response to endoplasmic reticulum stress cellular biosynthetic process cellular metabolic process gene expression macromolecule biosynthetic process protein maturation protein folding biosynthetic process	membrane-bounded organelle intracellular anatomical structure pigment granule intracellular vesicle cellular anatomical entity intracellular membrane-bounded organelle intracellular organelle melanosome cytoplasmic vesicle organelle cytoplasm vesicle perinuclear region of cytoplasm membrane-enclosed lumen membrane-bounded organelle intracellular anatomical structure pigment granule intracellular vesicle cellular anatomical entity intracellular membrane-bounded organelle intracellular organelle melanosome cytoplasmic vesicle organelle cytoplasm vesicle perinuclear region of cytoplasm membrane-enclosed lumen sarcoplasmic reticulum lumen endomembrane system intracellular organelle lumen endoplasmic reticulum lumen sarcoplasm organelle lumen endoplasmic reticulum sarcoplasmic reticulum

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR020575	Heat shock protein Hsp90, N-terminal	Domain
A, B	IPR036890	Histidine kinase/HSP90-like ATPase superfamily	Homologous Superfamily
A, B	IPR037196	HSP90, C-terminal domain	Homologous Superfamily
A, B	IPR003594	Histidine kinase/HSP90-like ATPase domain	Domain
A, B	IPR020568	Ribosomal protein uS5 domain 2-type superfamily	Homologous Superfamily
A, B	IPR001404	Heat shock protein Hsp90 family	Family
A, B	IPR019805	Heat shock protein Hsp90, conserved site	Conserved Site

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.