Hsp90b1 Gene Summary [Rat]

Predicted to enable several functions, including ATP binding activity; ATP hydrolysis activity; and ATP-dependent protein folding chaperone. Involved in cellular response to manganese ion. Located in smooth endoplasmic reticulum. Orthologous to several human genes including HSP90B1 (heat shock protein 90 beta family member 1). [provided by Alliance of Genome Resources, Jul 2025]

Details

Type
Protein Coding
Official Symbol
Hsp90b1
Official Name
heat shock protein 90 beta family member 1 [Source:RGD Symbol;Acc:1310482]
Ensembl ID
ENSRNOG00000026963
Bio databases IDs NCBI: 362862 Ensembl: ENSRNOG00000026963
Aliases heat shock protein 90 beta family member 1
Synonyms ECGP, endoplasmin, ENPL, ERP99, FLJ22209, GP96, GRP94, heat shock protein 90 beta family member 1, heat shock protein 90, beta (Grp94), member 1, heat shock protein 90 β family member 1, heat shock protein 90, β (Grp94), member 1, HEL35, HEL-S-125m, HSP96, HSP GP96 precursor, TA-3, TARG2, TRA1, Tumor rejection antigen gp96, tumour rejection antigen gp96
Species
Rat, Rattus norvegicus
OrthologiesHumanMouse

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in rat Hsp90b1 often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • dimerization domain
  • endoplasmic reticulum retrieval sequence
  • Histidine kinase-like ATPase domain
  • protein phosphatase binding
  • calcium ion binding
  • signal peptide
  • central domain
  • low-density lipoprotein receptor binding
  • protein binding
  • acidic domain
  • RNA binding
  • protein phosphatase inhibitor activity
  • Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase
  • Hsp90 protein
  • PRK05218
  • Histidine kinase-like ATPases
  • glycosylation site

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
disease
  • plasma cell myeloma
  • relapsed multiple myeloma
  • malignant pleural effusion
  • neoplasia
  • colorectal cancer
  • metastatic breast cancer
  • locally advanced breast cancer
  • recurrent breast cancer
  • advanced breast cancer
  • epithelial cancer
regulated by
regulates
role in cell
  • quantity
  • growth
  • activation
  • expression in
  • proliferation
  • differentiation
  • apoptosis
  • binding in
  • activation in
  • formation

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Cytoplasm
  • microsomal fraction
  • nuclear fraction
  • nuclear membrane fraction
  • membrane fraction
  • pH resistant lipid raft fraction
  • detergent resistant lipid raft fraction
  • endoplasmic reticulum mitochondria contact site
  • cilia
  • cell surface
  • Extracellular Space
  • perinuclear region
  • organelle lumens
  • cellular membrane
  • Nucleus
  • Plasma Membrane
  • endosomes
  • vesicles
  • Golgi Apparatus
  • Endoplasmic Reticulum
  • midbody
  • lipid droplets
  • cytosol
  • endoplasmic reticulum compartments
  • endoplasmic reticulum membrane
  • endoplasmic reticulum lumen
  • microsome
  • smooth endoplasmatic reticulum
  • exosomes
  • plasma
  • phagocytic cups
  • cytosolic fraction

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the rat Hsp90b1 gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • protein transport
  • regulation of phosphoprotein phosphatase activity
  • protein folding
  • response to hypoxia
  • negative regulation of apoptotic process
  • cellular response to manganese ion
  • retrograde protein transport, ER to cytosol
  • sequestering of calcium ion
  • cellular response to ATP
  • response to endoplasmic reticulum stress
  • actin rod assembly
  • protein folding in endoplasmic reticulum

Cellular Component

Where in the cell the gene product is active
  • smooth endoplasmic reticulum
  • endoplasmic reticulum
  • extracellular region
  • endoplasmic reticulum membrane
  • endoplasmic reticulum lumen
  • nucleus
  • extracellular vesicular exosome
  • perinuclear region of cytoplasm
  • focal adhesion
  • melanosome
  • endocytic vesicle lumen
  • membrane
  • cytosol
  • macromolecular complex
  • endoplasmic reticulum chaperone complex
  • midbody
  • sarcoplasmic reticulum lumen

Molecular Function

What the gene product does at the molecular level
  • ATPase activity
  • ATP binding
  • RNA binding
  • protein phosphatase binding
  • low-density lipoprotein particle receptor binding
  • protein binding
  • calcium ion binding
  • unfolded protein binding

Gene-Specific Assays for Results You Can Trust

Streamline your workflow with assays designed for this gene. Our targeted dPCR and qPCR assays help you generate meaningful data – efficiently and accurately.