To test the function on mammalian cells of PTEN N-terminal mutations displaying distinctive nuclear accumulation, stable human osteosarcoma U2OS Tet-Off cell lines expressing PTEN 1-375/L23F and 1-375/N31A mutations were
[Paragraph-level] PMCID: PMC4398541 Section: RESULTS PassageIndex: 12
Evidence Type(s): Functional, Oncogenic
Justification: Functional: The passage discusses how the L23F and N31A mutations alter the molecular function of PTEN, specifically its PIP3 catalytic activity and nuclear accumulation, indicating changes in biochemical function. Oncogenic: The results indicate that the L23F mutation leads to a complete loss-of-function in terms of cell growth inhibitory capacity, suggesting that it contributes to tumor development or progression.
Gene→Variant (gene-first): 5728:L23F 5728:N31A
Genes: 5728
Variants: L23F N31A