E-64

SKU: orb1224294

Description

E-64 is an irreversible and selective cysteine protease inhibitor with IC50 of 9 nM for papain.(In Vitro):E-64 (Proteinase inhibitor E 64) is a cathepsin B-specific inhibitor, and its binding modes with papain, actinidin, cathepsin L, and cathepsin K have been reviewed at the atomic level. E-64 has been widely used as a potent and irreversible (covalent-type) inhibitor for many cysteine proteases such as papain, ficin, actinidin, cathepsin B and L. The S.cervi adult parasites are incubated in the Kreb's Ringer bicarbonate (KRB) maintenance medium for 8 h at 37°C, 5% CO2 with 5, 10, 20 and 40 μM concentration of E-64. E-64 shows a concentration and time dependent decrease in motility and viability of the parasites (EC50=16 μM).\n(In Vivo):A broad spectrum of expression of CD4 and CD19 is found exists in both the islets and pancreatic lymph nodes (PLNs) and that anti-serpin B13 mAb exposure causes a significant shift that favored cells expressing low-to-intermediate amounts of these markers. However, this shift is abolished in animals that receive anti-serpin B13 mAb in the presence of the protease inhibitor E-64 (Proteinase inhibitor E 64), which maintains its blocking activity under the experimental conditions used. Dahl salt-sensitive (SS) rats are fed an 8% high salt NaCl diet and intravenously infused with the irreversible cysteine cathepsin inhibitor E-64 (1 mg/day) or the vehicle (control). Both the control and E-64 infused groups develope significant hypertension and kidney damage, and no difference of the mean arterial pressure and the hypertension-associated albuminuria is observed between the groups.

Key Properties

• CAS Number: 66701-25-5
• MW: 357.41
• Purity: >98% (HPLC)
• Formula: C₁₅H₂₇N₅O₅
• SMILES: O=C([C@@H]1[C@@H](C(O)=O)O1)N[C@H](C(NCCCCNC(N)=N)=O)CC(C)C
• Target: Cysteine Protease
• Solubility: DMSO:71 mg/mL warmed (198.65 mM); Ethanol:<1 mg/mL (<1 mM); Water:11 mg/mL warmed (30.77 mM)

Bioactivity

• In Vivo:
  A broad spectrum of expression of CD4 and CD19 is found exists in both the islets and pancreatic lymph nodes (PLNs) and that anti-serpin B13 mAb exposure causes a significant shift that favored cells expressing low-to-intermediate amounts of these markers. However, this shift is abolished in animals that receive anti-serpin B13 mAb in the presence of the protease inhibitor E-64 (Proteinase inhibitor E 64), which maintains its blocking activity under the experimental conditions used. Dahl salt-sensitive (SS) rats are fed an 8% high salt NaCl diet and intravenously infused with the irreversible cysteine cathepsin inhibitor E-64 (1 mg/day) or the vehicle (control). Both the control and E-64 infused groups develope significant hypertension and kidney damage, and no difference of the mean arterial pressure and the hypertension-associated albuminuria is observed between the groups.
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• In Vitro:
  E-64 (Proteinase inhibitor E 64) is a cathepsin B-specific inhibitor, and its binding modes with papain, actinidin, cathepsin L, and cathepsin K have been reviewed at the atomic level. E-64 has been widely used as a potent and irreversible (covalent-type) inhibitor for many cysteine proteases such as papain, ficin, actinidin, cathepsin B and L. The S. cervi adult parasites are incubated in the Kreb's Ringer bicarbonate (KRB) maintenance medium for 8 h at 37°C, 5% CO2 with 5, 10, 20 and 40 μM concentration of E-64. E-64 shows a concentration and time dependent decrease in motility and viability of the parasites (EC50 = 16 μM).
  Read more...

Storage & Handling

• Storage: Storage temperature: -20°C. Stability: ≥ 2 years
• Expiration Date: 12 months from date of receipt.
• Disclaimer: For research use only

Alternative Names

E-64 | E 64 | E64

Quick Database Links

Gene Symbol

Cysteine Protease