unwinding

ML216 (CID-49852229) is a small molecule inhibitor of BLM helicase with an IC50 of 1.8 μM, demonstrating 28-fold selectivity against the related helicases RECQ1, RECQ5, and E. coli UvrD (IC50s > 50 μM).

ATPγS tetralithium salt is a good substrate for RNA-stimulated nucleotide hydrolysis and RNA unwinding activity of eIF4A.

Irinotecan hydrochloride trihydrate (CPT-11 HCl Trihydrate) keeps DNA from unwinding by inhibiting topoisomerase 1.

GSK4418959 (IDE275) is a non-covalent, reversible, selective, and orally active inhibitor of the Werner syndrome helicase (WRN helicase). GSK4418959 inhibits both ATPase and DNA unwinding activities of WRN helicase in an ATP-competitive manner. GSK4418959 is a valuable chemical tool for the study of microsatellite instability-high (MSI-H) cancers, where WRN helicase plays an essential role in maintaining genomic stability.