CBLB (E3 ubiquitin-protein ligase CBL-B) is a gene that drives cell growth when it is altered. The public catalogues list it as an oncogene driver and a biomarker, and clinical evidence ties its variants to diagnosis, prognosis or drug response. Tied to Lung cancer, Skin cancer, Breast cancer and 2 more. 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
E3 ubiquitin-protein ligase which accepts ubiquitin from specific E2 ubiquitin-conjugating enzymes, and transfers it to substrates, generally promoting their degradation by the proteasome. Negatively regulates TCR (T-cell receptor), BCR (B-cell receptor) and FCER1 (high affinity immunoglobulin epsilon receptor) signal transduction pathways. In naive T-cells, inhibits VAV1 activation upon TCR engagement and imposes a requirement for CD28 costimulation for proliferation and IL-2 production. Also acts by promoting PIK3R1/p85 ubiquitination, which impairs its recruitment to the TCR and subsequent activation. In activated T-cells, inhibits PLCG1 activation and calcium mobilisation upon restimulation and promotes anergy. Involved in LAG3-mediated inhibition of TCR signalling: following ligand-binding to LAG3, catalyses 'Lys-63'-linked ubiquitination of LAG3, unleashing the LAG3 C-terminus from the membrane, and initiating a signalling that prevents TCR activation. Location: Cytoplasm (UniProt). Locus 3q13.11 (HGNC).
- Lung cancer: Open Targets association 0.57 with lung cancer (MONDO_0008903)
- Skin cancer: Open Targets association 0.56 with skin cancer (MONDO_0002898)
- Breast cancer: Open Targets association 0.53 with breast cancer (MONDO_0007254)
- Non-small-cell lung cancer: CIViC evidence names this disease; IntOGen driver in 2 cohorts (LUAD, NSCLC)
- Melanoma: Open Targets association 0.56 with melanoma (MONDO_0005105)
External identifiers
Built from HGNC, Ensembl, UniProt and ChEMBL idsProducts by modality and phase
Browse products →No product in the corpus is aimed at this target yet.
Trials
Evidence ranking →No trial in the corpus names this target or one of its products.
Resistance routes
Unaddressed routes →The resistance atlas has no route that names this target.
Pathways
Pathway-to-drug matrix →No pathway diagram carries this target as a node.
Companion diagnostics
Assay registry →No companion diagnostic in the registry measures this target.
Preclinical models
All models →No model entry for this target yet; check the cancer entries on the models page.
Open questions
All open questions →No open questions recorded for this target yet. Suggest one.
Literature
Preprints →Query for this target: (TITLE:"CBLB" OR ABSTRACT:"CBLB" OR TITLE:"Cbl proto-oncogene B" OR ABSTRACT:"Cbl proto-oncogene B" OR TITLE:"E3 ubiquitin-protein ligase CBL-B" OR ABSTRACT:"E3 ubiquitin-protein ligase CBL-B" OR TITLE:"RNF56" OR ABSTRACT:"RNF56" OR TITLE:"Cbl-b" OR ABSTRACT:"Cbl-b") 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 CBLB, 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/cblb.json. Licence CC BY-NC 4.0.