assay By Ivan Suarez Robles 13 Nov, 2010 A chemical analysis of a substance to determine its components.Related Articles: Inhibition of mitochondrial protein import by mutant huntingtinDrs. James Gusella and Marcy MacDonaldThe Scientific ApproachInduced Pluripotent Stem Cells: The Future of Tissue GenerationHuntington’s Disease-Like 2 (HDL2)