AKT1 and neoplasm: Among the PIK3CA mutation-positive tumor samples with AKT data (CB n = 7, NCB n = 5), the amount of AKT present per 10 μg total protein ranged from 0.6 to 4.5 fmol for AKT1 and 0.6 to 2.0 fmol for AKT2.