Figure 1. Structures of cysteine cathepsin activity-based probes.
a) Structures of the activity-based probes Cy5DCG04 and GB123 containing epoxide and AOMK reactive electrophiles, respectively (see dashed boxes). b) Structures of MGP151 (1) and MGP140 (2) and, cysteine cathepsin activity-based probes designed based on DCG-04 and GB123. Note these probes have swapped electrophiles (see dashed boxes) relative to the original DCG-04 and GB123 probes.
