The Assay described is a cell-free assay used to identify inhibitors of USP2a. The assay employs a reporter enzyme called CHOP2, which is activated when ubiquitin is cleaved by USP2. The activated reporter can then act on its substrate, giving a fluorescent read-out. The assay is licensed for sale as Ub-CHOP2-Reporter-Kit (#PR1101) by LifeSensors, Inc. Is the molecule effective to this assay?