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Bovine Factor IXaβ

 

BFIXa 1080            Bovine Factor IXaβ

 

Prepared from Bovine Factor IX by activation with Bovine Factor Xla, this Bovine Factor Xla is removed after activation. Complete activation is observed by SDS-PAGE. The Factor Xla activates FIX in a two-step reaction. In the first step, an internal Arg-Ala bond is cleaved, and in the second step, an Arg-Val bond is cleaved. The second cleavage leads to the liberation of an activation peptide from the NH2-terminal portion of the heavy chain to produce factor IXaβ.

Buffer composition = 20 mM Tris-HCl/0.1 M NaCl/pH 7.4
*Extinction Coefficient （1%） = 14.3
One unit = 5 µg
Molecular Weight = 43,900 daltons