OnCo

DDB1 (DNA damage-binding protein 1) is a gene. 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

Involved in DNA repair and protein ubiquitination, as part of the UV-DDB complex and DCX (DDB1-CUL4-X-box) complexes, respectively. Core component of the UV-DDB complex (UV-damaged DNA-binding protein complex), a complex that recognises UV-induced DNA damage and recruits proteins of the nucleotide excision repair pathway (the NER pathway) to initiate DNA repair. The UV-DDB complex preferentially binds to cyclobutane pyrimidine dimers (CPD), 6-4 photoproducts (6-4 PP), apurinic sites and short mismatches. Component of numerous distinct DCX (DDB1-CUL4-X-box) E3 ubiquitin-protein ligase complexes which mediate the ubiquitination and subsequent proteasomal degradation of target proteins. The functional specificity of the DCX E3 ubiquitin-protein ligase complex is determined by the variable substrate recognition component recruited by DDB1. DCX(DDB2) (also known as DDB1-CUL4-ROC1, CUL4-DDB-ROC1 and CUL4-DDB-RBX1) may ubiquitinate histone H2A, histone H3 and histone H4 at sites of UV-induced DNA damage. Location: Cytoplasm; Nucleus (UniProt). Locus 11q12.2 (HGNC).

Where it is found
  • Multiple myeloma: Open Targets association 0.61 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: other · Gene: DDB1 · Facts checked 2026-09-23 · Target page

External identifiers

Built from HGNC, Ensembl, UniProt and ChEMBL ids

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Resistance routes

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Companion diagnostics

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Literature

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Query for this target: (TITLE:"DDB1" OR ABSTRACT:"DDB1" OR TITLE:"damage specific DNA binding protein 1" OR ABSTRACT:"damage specific DNA binding protein 1" OR TITLE:"DNA damage-binding protein 1" OR ABSTRACT:"DNA damage-binding protein 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 DDB1, not a curated reading list.

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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/ddb1.json. Licence CC BY-NC 4.0.