OnCo

FOSB (FosB proto-oncogene, AP-1 transcription factor subunit) is a gene. The public catalogues list it as a biomarker, and clinical evidence ties its variants to diagnosis, prognosis or drug response. 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

Heterodimerises with proteins of the JUN family to form an AP-1 transcription factor complex, thereby enhancing their DNA binding activity to gene promoters containing an AP-1 consensus sequence 5'-TGA[GC]TCA-3' and enhancing their transcriptional activity. As part of the AP-1 complex, facilitates enhancer selection together with cell-type-specific transcription factors by collaboratively binding to nucleosomal enhancers and recruiting the SWI/SNF (BAF) chromatin remodeling complex to establish accessible chromatin. Together with JUN, plays a role in activation-induced cell death of T cells by binding to the AP-1 promoter site of FASLG/CD95L, and inducing its transcription in response to activation of the TCR/CD3 signalling pathway. Exhibits transactivation activity in vitro. Involved in the display of nurturing behaviour towards newborns. May play a role in neurogenesis in the hippocampus and in learning and memory-related tasks by regulating the expression of various genes involved in neurogenesis, depression and epilepsy. Location: Nucleus (UniProt). Locus 19q13.32 (HGNC).

Class: other · Gene: FOSB · 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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Literature

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Query for this target: (TITLE:"FOSB" OR ABSTRACT:"FOSB" OR TITLE:"FosB proto-oncogene, AP-1 transcription factor subunit" OR ABSTRACT:"FosB proto-oncogene, AP-1 transcription factor subunit" OR TITLE:"G0S3" OR ABSTRACT:"G0S3" OR TITLE:"GOS3" OR ABSTRACT:"GOS3" OR TITLE:"AP-1" OR ABSTRACT:"AP-1" OR TITLE:"MGC42291" OR ABSTRACT:"MGC42291") 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 FOSB, 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/fosb.json. Licence CC BY-NC 4.0.