NCIt definition : A 4:1 mixture of phenylacetate and phenylacetylgluatmine, degradation products of
the antineoplaston agent A10. Antineoplaston AS2-1 inhibits the incorporation of L-glutamine
into tumor-cell proteins, leading to cell cycle arrest in the G1 phase and inhibition
of mitosis. This agent may also inhibit RAS oncogene expression and activate tumor
suppressor gene p53, resulting in cell differentiation and apoptosis. (NCI04);