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E 64c

CAS No. : 76684-89-4

MCE 站：E 64c

产品活性：E 64c 是半胱氨酸蛋白酶 (cysteine proteases) 天然环氧化物抑制剂的衍生物，也是钙离子激活中性蛋白酶 (CANP) 的抑制剂和组织蛋白酶C (cathepsin C) 的弱不可逆抑制剂。E 64c 可抑制 MERS-CoV.

研究领域：Metabolic Enzyme/Protease  |  Anti-infection

作用靶点：Cathepsin  |  SARS-CoV

In Vitro: E-64c, a derivative of naturally occurring epoxide inhibitor of cysteine proteases, with papain; especially with regard to the hydrogen bonding and hydrophobic interactions of the ligands with conserved residues in the catalytic binding site. E 64c (k₂/K_i=140±5M^-1s^-1) is demonstrated to be a lead structure for the development of irreversible cathepsin C inhibitors.

In Vivo: The t-1/2 of plasma E-64c is 0.48 hours. The hemodynamic effects of E-64c are absent at this dose. Using two way analysis of variance, the effects of reperfusion (p=0.0016) or E-64c (p=0.0226) per se on infarct size are significant. In comparing Group A with Group B and Group C with Group D, the depletion of CPK in the E-64c treated groups (Groups A and C) is slightly less than in the vehicle-injected groups (Groups B and D). The insufficient effect of E-64c alone may be explained by the early administration and relatively short t-1/2. Since the effectiveness of NCO-700 has been established,6),7) our findings might indicate a small but beneficial effect of E-64c on infarct size and CPK content.

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