OnCo

RBX1 (E3 ubiquitin-protein ligase RBX1) is an enzyme. The public catalogues list it as a drug target and a DNA repair gene, and an approved or late-stage drug is recorded against it. Tied to Multiple myeloma, Non-Hodgkin lymphoma, Myelodysplastic syndromes / neoplasms 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 ligase component of multiple cullin-RING-based E3 ubiquitin-protein ligase (CRLs) complexes which mediate the ubiquitination and subsequent proteasomal degradation of target proteins, including proteins involved in cell cycle progression, signal transduction, transcription and transcription-coupled nucleotide excision repair. CRLs complexes and ARIH1 collaborate in tandem to mediate ubiquitination of target proteins, ARIH1 mediating addition of the first ubiquitin on CRLs targets. The functional specificity of the E3 ubiquitin-protein ligase complexes depends on the variable substrate recognition components. As a component of the CSA complex mediates ubiquitination of Pol II subunit POLR2A at 'Lys-1268', a critical TC-NER checkpoint. Core component of the Cul7-RING(FBXW8) ubiquitin ligase complex, which mediates the ubiquitination and subsequent proteasomal degradation of target proteins. Core component of a Cul9-RING ubiquitin ligase complex composed of CUL9 and RBX1, which mediates mono-ubiquitination of p53/TP53. Location: Cytoplasm; Nucleus (UniProt). Locus 22q13.2 (HGNC).

Where it is found
  • Multiple myeloma: Open Targets association 0.62 with plasma cell myeloma (MONDO_0009693)
  • Non-Hodgkin lymphoma: Open Targets association 0.59 with non-Hodgkin lymphoma (MONDO_0018908)
  • Myelodysplastic syndromes / neoplasms: Open Targets association 0.56 with myelodysplastic syndrome (MONDO_0018881)
  • Follicular lymphoma: Open Targets association 0.57 with follicular lymphoma (MONDO_0018906)
  • Mantle cell lymphoma: Open Targets association 0.55 with mantle cell lymphoma (MONDO_0018876)
Class: enzyme · Gene: RBX1 · 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:"RBX1" OR ABSTRACT:"RBX1" OR TITLE:"ring-box 1" OR ABSTRACT:"ring-box 1" OR TITLE:"E3 ubiquitin-protein ligase RBX1" OR ABSTRACT:"E3 ubiquitin-protein ligase RBX1" OR TITLE:"ROC1" OR ABSTRACT:"ROC1" OR TITLE:"RNF75" OR ABSTRACT:"RNF75" OR TITLE:"BA554C12.1" OR ABSTRACT:"BA554C12.1") 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 RBX1, 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/rbx1.json. Licence CC BY-NC 4.0.