OnCo

HSP90AA1 (Heat shock protein HSP 90-alpha) is a gene whose normal job is to hold cell growth in check. The public catalogues list it as a drug target and a tumour suppressor, and clinical evidence ties its variants to diagnosis, prognosis or drug response. Tied to Breast cancer. This dossier gathers the 0 products (0 approved), 0 trials, 0 pathways and 0 resistance routes in the corpus that involve it, with external identifiers so it can be joined to UniProt, ChEMBL, Open Targets and the rest of biology.

Biology

Molecular chaperone that promotes the maturation, structural maintenance and proper regulation of specific target proteins involved for instance in cell cycle control and signal transduction. Undergoes a functional cycle that is linked to its ATPase activity which is essential for its chaperone activity. This cycle probably induces conformational changes in the client proteins, thereby causing their activation. Interacts dynamically with various co-chaperones that modulate its substrate recognition, ATPase cycle and chaperone function. Engages with a range of client protein classes via its interaction with various co-chaperone proteins or complexes, that act as adapters, simultaneously able to interact with the specific client and the central chaperone itself. Recruitment of ATP and co-chaperone followed by client protein forms a functional chaperone. Location: Nucleus; Cytoplasm; Melanosome; Cell membrane (UniProt). Locus 14q32.31 (HGNC).

Where it is found
  • Breast cancer: IntOGen driver in 1 cohort (BRCA)
Class: tumor suppressor · Gene: HSP90AA1 · Facts checked 2026-09-23 · Target page

External identifiers

Built from HGNC, Ensembl, UniProt and ChEMBL ids

Products by modality and phase

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Resistance routes

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Companion diagnostics

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Preclinical models

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No model entry for this target yet; check the cancer entries on the models page.

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Literature

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Query for this target: (TITLE:"HSP90AA1" OR ABSTRACT:"HSP90AA1" OR TITLE:"heat shock protein 90 alpha family class A member 1" OR ABSTRACT:"heat shock protein 90 alpha family class A member 1" OR TITLE:"Heat shock protein HSP 90-alpha" OR ABSTRACT:"Heat shock protein HSP 90-alpha" OR TITLE:"Hsp89" OR ABSTRACT:"Hsp89" OR TITLE:"Hsp90" OR ABSTRACT:"Hsp90" OR TITLE:"FLJ31884" OR ABSTRACT:"FLJ31884") AND (cancer OR tumor OR tumour OR oncology OR carcinoma OR lymphoma OR leukemia OR leukaemia OR myeloma OR sarcoma OR melanoma OR glioma). Results are unfiltered search hits about HSP90AA1, not a curated reading list.

Export

The dossier as machine-readable JSON: identifiers from HGNC, Ensembl, UniProt and ChEMBL, products with status, trials, pathways, hotspots, open questions and assays. The full entity record is in the open API at /api/v1/entities/hsp90aa1.json. Licence CC BY-NC 4.0.