購(gòu)物車
幫助
021-54845833/15800441009
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(jí) 別 ： BR
來(lái) 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(lái) 源 ： honey bee venom
Activity ： 600～2400u/mg protein
來(lái) 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℃
