磷酯酶A2

其他中文名稱 ： 磷脂酶A2

英文名稱 ： PLA2

其他英文名稱 ： Lecithinase A；Phosphatidylcholine 2-acylhydrolase；Phospholipase A2

C A S ： 9001-84-7

級 別 ： BR

來 源 ： Crotalus durissus terrificus venom

Activity ： ≥200u/mg

活力定義 ： One Unit releases one micromole of acid from soybean lecithin per minute at 25℃, pH 8.9

產(chǎn)品描述 ： Phospholipase A2 is a member of the class of heat-stable, calcium-dependent enzymes catalyzing the hydrolysis of the 2-acyl bond of 3-n-phosphoglycerides. The enzyme has a molecular weight of 30,000 daltons. Phospholipase A2 is activated by Ca2+. It is inhibited by zinc, barium, and manganese ions. Activity values for phospholipase A preparations which are derived from titrimetric assay procedures can be quite dependent on source and type of lecithin, its preparation as a substrate emulsion, other components of the reaction mixture, and the method and instrumentation used

來 源 ： honey bee venom

Activity ： 600～2400u/mg protein

來 源 ： porcine pancreas

Activity ： ≥600 units/mg protein

活力定義 ： One unit will hydrolyze 1.0 μmole of soybean L-α-phosphatidylcholine to L-α-lysophosphatidylcholine and a fatty acid per min at pH 8.0 at 37 °C

性 狀 ： 白色或類白色懸浮液。Suspension in 3.2 M (NH4)2SO4 solution, pH 5.5 。EC3.1.1.4

性 狀 ： 粉末。EC3.1.1.4

用 途 ： 生化研究。

保 存 ： -20℃