Smallman B N, Maneckjee A
Biochem J. 1981 Jan 15;194(1):361-4. doi: 10.1042/bj1940361.
Choline acetyltransferase was demonstrated in nettles (Urtica dioica), peas (Pisum sativum), spinach (Spinacia oleracea), sunflower (Helianthus annuus) and blue--green algae by using a Sepharose--CoASH affinity column. The column effected a 1500-fold purification of the enzyme from nettle homogenates and was required for demonstrating activity in the other higher plants. Demonstration of the enzyme in blue-green algae suggests that acetylcholine was a biochemical necessity in the earliest photosynthetic organisms.
通过使用琼脂糖 - 辅酶A亲和柱,在荨麻(异株荨麻)、豌豆(豌豆)、菠菜(菠菜)、向日葵(向日葵)和蓝藻中证实了胆碱乙酰转移酶的存在。该柱对荨麻匀浆中的这种酶进行了1500倍的纯化,并且对于证明其他高等植物中的活性是必需的。在蓝藻中证明这种酶表明乙酰胆碱在最早的光合生物中是一种生化必需品。