Alternative name: Poly(ADP-ribose) polymerase 1. Purity: ≥90% (SDS-PAGE). MW: ~46kDa. Formulation: Liquid. In 50mM TRIS-HCl, pH 7.5, containing 300mM sodium chloride, 250mM imidazole, 2mM β-mercaptoethanol, 0.2% NP-40 and 10% glycerol. Source: Produced in SF21 insect cells. Human PARP-1 (aa 656-1014) is fused to a C-terminal His-tag. Produced in a baculovirus expression system. Long Term Storage: -80°C. Handling: Avoid freeze/thaw cycles. After opening, prepare aliquots and store at -80°C.