ICE-LAP6 Mch6 Lyophilized. Lyophilized from 130 mM NaCl, 20 mM Tris, 4 mM (NH4)2SO4 Recombinant, human caspase-9 fused at the N- and C- termini to a His•Tag® sequence and expressed in E. coli as a single polypeptide. Subsequently undergoes spontaneous autoprocessing to yield the active enzyme. MW: 11000 and 20000. Specific activity: ≥400 units/mg protein. One unit is defined as the amount of enzyme that will cleave 1.0 nmol substrate Ac-LEHD-pNA (Cat. No. 218805) per h at 37°C, pH 7.2. Purity: ≥70% by SDS-PAGE. Ref.: Qin, H., et al. 1999. Nature 399, 549. Li, P., et al. 1997. Cell 91, 479. Salvesen, G.S., et al. 1997. Cell 91, 443. |