EphB2、活性型

The Molar extinction coefficient is 15400.

The best buffer is Buffer A. It is composed of 50mM Tris/HCl, pH 7.5, 1mM EGTA, 1mM EDTA, 1mM Sodium Orthovanadate (activated), 10mM Na B-glycerolphosphate, 50mM NaF, 5mM Na pyrophosphate, 1% w/v Triton X-100, 0.1% w/v 2-mercaptoethanol, 1ug/ml each of aprotinin, leupeptin and pepstatin, 1mM PMSF and 1mM microcystin (this is optional). QS with water. You may store Buffer A in aliquots at -20°C for 6 months.

It is important to shake the reaction mixture during incubations so that the substrate and the enzyme get good interaction. If you do not have access to a shaking incubator, use a water bath for the incubations, removing the tubes regularly to vortex.