Mutations in SF3B1 have been identified across several cancer types. This key spliceosome component promotes the efficient mRNA splicing of thousands of genes including those with crucial roles in the cellular response t
[Paragraph-level] PMCID: PMC7612475 Section: ABSTRACT PassageIndex: 1
Evidence Type(s): Predictive, Functional, Oncogenic
Summary: Evidence Type: Predictive | Mutation: K700E | Summary: The K700E mutation in SF3B1 increases cellular sensitivity to ionising radiation and various chemotherapeutic agents, including PARP inhibitors, suggesting a correlation with treatment response. Evidence Type: Functional | Mutation: K700E | Summary: The K700E mutation alters molecular function by compromising homologous recombination efficiency and inducing unscheduled R-loop formation, replication fork stalling, and defective replication fork restart. Evidence Type: Oncogenic | Mutation: K700E | Summary: The K700E mutation contributes to tumor development by inducing a BRCA-like cellular phenotype that confers synthetic lethality to DNA damaging agents and PARP inhibitors.
Gene→Variant (gene-first): 23451:K700E
Genes: 23451
Variants: K700E