Aspirin

Achaete-scute complex homolog 2 (Drosophila), ASCL2, is a bHLH transcription factor. In mice it is expressed during the development of extraembroynic trophoblast lineages but repressed in other tissues and is essential for proper placental

ASL (Argininosuccinate lyase) exists in monomeric state with ~52kDa molecular weight. It turns into the homotetrameric functional state after addition of four active sites.

The asparagine synthetase (ASNS) gene encodes for the enzyme L -asparaginase. The ASNS gene is located on the human chromosome at 7q21.