... interactions of cystatin F with severalof its potential targets, cathepsins F, K, V, S, H, X and C, were studiedin vitro. Cystatin F tightly inhibited cathepsins F, K and V with Kivaluesranging ... cystatin F was compared with that ofthe cathepsins, cystatin F was found to be colocalized with cathepsins X and H (Fig. 2C,D), but not with cathepsins L (Fig. 3A), B, C and K (not shown). Theresults ... tightly inhibited cathep-sins F, K and V. The reason for the considerablyTable 1. Interaction of cystatin F with cysteine proteases. The experimental conditions and methods are described in the...