Annotations: 2IOP

Crystal Structure of Full-length HtpG, the Escherichia coli Hsp90, Bound to ADP

External Resource: Annotation

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: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D	SCOP2B Superfamily	HSP90 C-terminal domain	8039382	3001478	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	GHKL (Gyrase, Hsp90, Histidine Kinase, MutL) domain-like	8070968	3000091	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	GHKL (Gyrase, Hsp90, Histidine Kinase, MutL) domain-like	8070968	3000091	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	HSP90 C-terminal domain	8039382	3001478	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	GHKL (Gyrase, Hsp90, Histidine Kinase, MutL) domain-like	8070968	3000091	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	HSP90 C-terminal domain	8039382	3001478	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	HSP90 C-terminal domain	8039382	3001478	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	GHKL (Gyrase, Hsp90, Histidine Kinase, MutL) domain-like	8070968	3000091	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)
D	ACR_tran	e2iopD2	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: ACR_tran	ECOD (v295.2)
D	SH2	e2iopD6	A: alpha arrays	X: Subtilisin-like	H: Subtilisin-like	T: Subtilisin-like	F: SH2	ECOD (v295.2)
C	ACR_tran	e2iopC2	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: ACR_tran	ECOD (v295.2)
C	SH2	e2iopC6	A: alpha arrays	X: Subtilisin-like	H: Subtilisin-like	T: Subtilisin-like	F: SH2	ECOD (v295.2)
B	ACR_tran	e2iopB2	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: ACR_tran	ECOD (v295.2)
B	SH2	e2iopB6	A: alpha arrays	X: Subtilisin-like	H: Subtilisin-like	T: Subtilisin-like	F: SH2	ECOD (v295.2)
A	ACR_tran	e2iopA2	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: ACR_tran	ECOD (v295.2)
A	SH2	e2iopA6	A: alpha arrays	X: Subtilisin-like	H: Subtilisin-like	T: Subtilisin-like	F: SH2	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	3.30.565.10	Alpha Beta	2-Layer Sandwich	Heat Shock Protein 90	Histidine kinase-like ATPase, C-terminal domain	CATH (4.3.0)
D	3.30.230.80	Alpha Beta	2-Layer Sandwich	Ribosomal Protein S5	domain 2	CATH (4.3.0)
C	3.30.565.10	Alpha Beta	2-Layer Sandwich	Heat Shock Protein 90	Histidine kinase-like ATPase, C-terminal domain	CATH (4.3.0)
C	3.30.230.80	Alpha Beta	2-Layer Sandwich	Ribosomal Protein S5	domain 2	CATH (4.3.0)
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)
B	3.30.230.80	Alpha Beta	2-Layer Sandwich	Ribosomal Protein S5	domain 2	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)
A	3.30.230.80	Alpha Beta	2-Layer Sandwich	Ribosomal Protein S5	domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF02518	Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase (HATPase_c)	Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase	This family represents the structurally related ATPase domains of histidine kinase, DNA gyrase B and HSP90.	Domain
A, B, C, D	PF00183	Hsp90 C-terminal domain (Hsp90_C)	Hsp90 C-terminal domain	This entry represents the C-terminal domain of molecular chaperones, or heat shock proteins (Hsps) such as HSP90, which are ubiquitous proteins that act to maintain proper protein folding within the cell. They assist in the folding of nascent polypep ...	This entry represents the C-terminal domain of molecular chaperones, or heat shock proteins (Hsps) such as HSP90, which are ubiquitous proteins that act to maintain proper protein folding within the cell. They assist in the folding of nascent polypeptide chains, and are also involved in the refolding of denatured proteins following proteotoxic stress. Five major Hsp families have been determined, and are categorised according to their molecular size (Hsp100, Hsp90, Hsp70, Hsp60, and the small Hsps). Hsps are involved in a variety of cellular processes that are ATP-dependent. Hsp90 chaperones are unique in their ability to regulate a specific subset of cellular signalling proteins that have been implicated in disease processes, including intracellular protein kinases, steroid hormone receptors, and growth factor receptors [1-4].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Chaperone protein htpG	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding identical protein binding protein binding protein homodimerization activity protein dimerization activity 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 protein folding chaperone ATP-dependent protein folding chaperone protein-folding chaperone binding	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process protein folding biosynthetic process metabolic process primary metabolic process protein metabolic process macromolecule metabolic process gene expression macromolecule biosynthetic process cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process protein folding biosynthetic process metabolic process primary metabolic process protein metabolic process macromolecule metabolic process gene expression macromolecule biosynthetic process protein maturation reproductive process in single-celled organism reproductive process cytokinesis cell division cell cycle FtsZ-dependent cytokinesis cell cycle process asexual reproduction response to heat response to abiotic stimulus response to temperature stimulus peptidyl-histidine phosphorylation protein phosphorylation phosphorylation macromolecule modification phosphate-containing compound metabolic process protein modification process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

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