SF3B1 mutation is considered a founder clone, however we observed 2 patients in which the mutation arose during disease evolution. The first patient was a 74-year-old man who was diagnosed with MDS-EB with trisomy 8 and
[Paragraph-level] PMCID: PMC10015977 Section: RESULTS PassageIndex: 24
Evidence Type(s): Oncogenic, Functional
Justification: Oncogenic: The passage discusses the acquisition of the SF3B1 R625C, K700E, and SETBP1 E862K mutations during disease evolution, indicating their role in tumor development and progression in the context of MDS-EB transforming to AML. Functional: The mention of the SF3B1 mutations leading to changes in bone marrow morphology, such as the appearance of ring sideroblasts, suggests that these variants alter molecular or biochemical function related to the disease.
Gene→Variant (gene-first): 26040:E862K 23451:K700E 23451:R625C
Genes: 26040 23451
Variants: E862K K700E R625C