Recombinant Daboia palaestinae Disintegrin viperistatin

Potent and highly selective inhibitor of alpha-1/beta-1 (ITGA1/ITGB1) integrin binding to collagen I and IV. Is about 25-fold more potent than obtustatin inhibiting the binding of this integrin to collagen IV.

If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.

"Structural determinants of the selectivity of KTS-disintegrins for the alpha1beta1 integrin." Kisiel D.G., Calvete J.J., Katzhendler J., Fertala A., Lazarovici P., Marcinkiewicz C. FEBS Lett. 577:478-482 (2004)

The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.