OnCo

RAP1B (Ras-related protein Rap-1b) is a gene whose normal job is to hold cell growth in check. The public catalogues list it as a tumour suppressor, and it is called a cancer driver by mutation analysis of patient cohorts. Tied to Bladder & urothelial 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

GTP-binding protein that possesses intrinsic GTPase activity. Contributes to the polarising activity of KRIT1 and CDH5 in the establishment and maintenance of correct endothelial cell polarity and vascular lumen. Required for the localisation of phosphorylated PRKCZ, PARD3 and TIAM1 to the cell junction. Plays a role in the establishment of basal endothelial barrier function. Location: Cell membrane; Cytoplasm, cytosol; Cell junction (UniProt). Locus 12q15 (HGNC).

Where it is found
  • Bladder & urothelial cancer: IntOGen driver in 1 cohort (BLCA)
Class: tumor suppressor · Gene: RAP1B · 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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Literature

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Query for this target: (TITLE:"RAP1B" OR ABSTRACT:"RAP1B" OR TITLE:"RAP1B, member of RAS oncogene family" OR ABSTRACT:"RAP1B, member of RAS oncogene family" OR TITLE:"Ras-related protein Rap-1b" OR ABSTRACT:"Ras-related protein Rap-1b" OR TITLE:"K-REV" OR ABSTRACT:"K-REV" OR TITLE:"RAL1B" OR ABSTRACT:"RAL1B" OR TITLE:"DKFZp586H0723" OR ABSTRACT:"DKFZp586H0723") 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 RAP1B, 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/rap1b.json. Licence CC BY-NC 4.0.