nan
Oncogenic, Functional evidence:
Oncogenic: The abstract discusses that heterozygous somatic mutations in IDH1, including R132H, occur frequently in gliomas and secondary glioblastomas, suggesting that these mutations contribute to tumor development. The presence of these mutations is linked to the dual effects of loss of normal enzyme function and gain-of-function, which are critical for tumorigenesis.
Functional: The abstract mentions that mutations in IDH1, such as R132H, cause loss of normal enzyme function and gain-of-function, leading to the accumulation of D-2-hydroxyglutarate. This indicates that the variant alters the biochemical function of the enzyme, impacting its activity and the metabolic pathways involved.