Syntide 2 (TFA) is a Ca2+ and CaM dependent protein kinase II (CaMKII) substrate peptide that selectively inhibits the gibberellin (GA) response, leaving composition and slicoic acid regulatory events unaffected.

TH-263 is inactive toward both LIMK1 and LIMK2 and thus can be used as negative control for TH-257, and is a diaryl sulfonamide derivative.

EcDsbB-IN-9 is a specific EcDsbB inhibitor, targeting disulfide bond forming enzyme DsbB of Gram-negative bacteria.