Withasomnine –5.87 49.69 µM Gln947, Phe741, Ser985, Gln984, Gly981, Leu983, Phe952, Asn951, Tyr738, Ser950 –7.1 6.25 µM Leu963, Ser728, Cys725, Val958, Leu948, Phe558, Asp557, Phe837, Asn960, Thr535, Thr533, Asp727, Le