Annotations: 1USU

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1usua_	Alpha and beta proteins (a+b)	Ribosomal protein S5 domain 2-like	Ribosomal protein S5 domain 2-like	Hsp90 middle domain	Heat shock protein hsp82	BAKER'S YEAST (Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
B	d1usub_	Alpha and beta proteins (a+b)	Aha1/BPI domain-like	Activator of Hsp90 ATPase, Aha1	Activator of Hsp90 ATPase, Aha1	Activator of Hsp90 ATPase, Aha1	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	SCOP2 Family	Hsp90 middle domain	8029626	4001260	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Ribosomal protein S5 domain 2-like	8042005	3000100	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	HSP90 middle pre-C-terminal domain	8056863	3002364	SCOP2 (2022-06-29)
B	SCOP2 Family	Aha1-like	8029627	4001486	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Aha1/BPI domain-like	8042006	3001851	SCOP2 (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	PF00183	e1usuA2	A: a+b two layers	X: Ribosomal protein S5 domain 2-like (From Topology)	H: Ribosomal protein S5 domain 2-like (From Topology)	T: Ribosomal protein S5 domain 2-like	F: PF00183	ECOD (1.6)
A	PF00183	e1usuA3	A: a/b three-layered sandwiches	X: HSP90 C-terminal a/b domain (From Topology)	H: HSP90 C-terminal a/b domain (From Topology)	T: HSP90 C-terminal a/b domain	F: PF00183	ECOD (1.6)
B	PF09229	e1usuB1	A: a+b complex topology	X: Aha1/BPI domain-like (From Topology)	H: Aha1/BPI domain-like (From Topology)	T: Aha1/BPI domain-like	F: PF09229	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.230.80	Alpha Beta	2-Layer Sandwich	Ribosomal Protein S5	domain 2	CATH (4.3.0)
A	3.40.50.11260	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
B	3.15.10.20	Alpha Beta	Super Roll	Bactericidal permeability-increasing protein	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00183	Hsp90 protein (HSP90)	Hsp90 protein	-	Family
B	PF09229	Activator of Hsp90 ATPase, N-terminal (Aha1_N)	Activator of Hsp90 ATPase, N-terminal	Members of this family, which are predominantly found in the protein 'Activator of Hsp90 ATPase' adopt a secondary structure consisting of an N-terminal alpha-helix leading into a four-stranded meandering antiparallel beta-sheet, followed by a C-term ...	Members of this family, which are predominantly found in the protein 'Activator of Hsp90 ATPase' adopt a secondary structure consisting of an N-terminal alpha-helix leading into a four-stranded meandering antiparallel beta-sheet, followed by a C-terminal alpha-helix. The two helices are packed together, with the beta-sheet curving around them. They bind to the molecular chaperone HSP82 and stimulate its ATPase activity [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	HEAT SHOCK PROTEIN HSP82	ATP-dependent protein folding chaperone protein folding chaperone ATP-dependent activity 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-dependent protein folding chaperone protein folding chaperone ATP-dependent activity 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 identical protein binding	protein refolding organonitrogen compound metabolic process cellular biosynthetic process cellular metabolic process primary metabolic process gene expression macromolecule biosynthetic process protein maturation organic substance metabolic process protein folding biosynthetic process organic substance biosynthetic process metabolic process cellular process protein refolding organonitrogen compound metabolic process cellular biosynthetic process cellular metabolic process primary metabolic process gene expression macromolecule biosynthetic process protein maturation organic substance metabolic process protein folding biosynthetic process organic substance biosynthetic process metabolic process cellular process protein metabolic process macromolecule metabolic process protein localization establishment of protein localization cellular localization protein targeting establishment of localization localization establishment of protein localization to organelle cellular macromolecule localization macromolecule localization protein localization to organelle protein localization to mitochondrion protein targeting to mitochondrion establishment of protein localization to mitochondrion regulation of protein stability biological regulation regulation of biological quality protein stabilization cellular response to stimulus cellular response to heat response to stimulus cellular response to stress response to stress response to heat response to abiotic stimulus response to temperature stimulus cellular component organization cellular component biogenesis proteasome assembly cellular component assembly protein-containing complex organization protein-containing complex assembly cellular component organization or biogenesis response to oxygen levels regulation of telomere maintenance regulation of cellular component organization regulation of cellular process telomere organization regulation of primary metabolic process nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of biological process chromosome organization regulation of chromosome organization regulation of macromolecule metabolic process DNA metabolic process regulation of organelle organization nucleic acid metabolic process telomere maintenance organic cyclic compound metabolic process organelle organization regulation of metabolic process regulation of DNA metabolic process ribonucleoprotein complex biogenesis small nucleolar ribonucleoprotein complex assembly protein-RNA complex assembly protein-RNA complex organization box C/D snoRNP assembly positive regulation of organelle organization regulation of DNA biosynthetic process positive regulation of macromolecule biosynthetic process RNA-templated DNA biosynthetic process telomere maintenance via telomere lengthening positive regulation of metabolic process positive regulation of telomere maintenance via telomere lengthening positive regulation of macromolecule metabolic process positive regulation of telomere maintenance positive regulation of nucleobase-containing compound metabolic process regulation of cellular metabolic process regulation of telomere maintenance via telomere lengthening positive regulation of chromosome organization positive regulation of DNA metabolic process positive regulation of telomere maintenance via telomerase organic cyclic compound biosynthetic process regulation of macromolecule biosynthetic process DNA biosynthetic process positive regulation of cellular component organization positive regulation of biological process positive regulation of cellular metabolic process nucleic acid biosynthetic process positive regulation of biosynthetic process positive regulation of cellular process regulation of biosynthetic process telomere maintenance via telomerase positive regulation of DNA biosynthetic process nucleobase-containing compound biosynthetic process regulation of telomere maintenance via telomerase regulation of cellular biosynthetic process positive regulation of cellular biosynthetic process 'de novo' protein folding response to osmotic stress	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol cell periphery plasma membrane membrane protein-containing complex perinuclear region of cytoplasm membrane-bounded organelle intracellular organelle organelle nucleus intracellular membrane-bounded organelle
B	AHA1	ATPase activator activity molecular function activator activity molecular function regulator activity ATPase regulator activity protein binding binding protein-folding chaperone binding	organonitrogen compound metabolic process cellular biosynthetic process cellular metabolic process primary metabolic process gene expression macromolecule biosynthetic process protein maturation organic substance metabolic process protein folding biosynthetic process organic substance biosynthetic process metabolic process cellular process protein metabolic process organonitrogen compound metabolic process cellular biosynthetic process cellular metabolic process primary metabolic process gene expression macromolecule biosynthetic process protein maturation organic substance metabolic process protein folding biosynthetic process organic substance biosynthetic process metabolic process cellular process protein metabolic process macromolecule metabolic process	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR003594	Histidine kinase/HSP90-like ATPase	Domain
A	IPR020575	Heat shock protein Hsp90, N-terminal	Domain
A	IPR036890	Histidine kinase/HSP90-like ATPase superfamily	Homologous Superfamily
A	IPR037196	HSP90, C-terminal domain	Homologous Superfamily
A	IPR020568	Ribosomal protein uS5 domain 2-type superfamily	Homologous Superfamily
A	IPR001404	Heat shock protein Hsp90 family	Family
A	IPR019805	Heat shock protein Hsp90, conserved site	Conserved Site
B	IPR036338	Activator of Hsp90 ATPase, Aha1	Homologous Superfamily
B	IPR015310	Activator of Hsp90 ATPase AHSA1-like, N-terminal	Domain
B	IPR013538	Activator of Hsp90 ATPase homologue 1-like, C-terminal	Domain
B	IPR023393	START-like 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 R01GM133198.