Molecular Weight: 730.24 Salt Form: N/A Purity: >96% Sequence (3-letter): Ac-Thr-Gln-Thr-Glu-AFC Sequence (1-letter): Ac-TQTE-AFC Storage: -20 ?C or below DRONC is a caspase found in Drosophila which is likely to be involved in programmed cell death during insect metamorphosis.? The substrate specificity of DRONC is similar to mammalian caspase-2. Activity is quantified by release of free fluorescent 7-amino-4-trifluoromethylcoumarin (AFC) which excites at 395-400 nm and emits at 495-505 nm.