enzyme from all three tissues co-purifies on deae-cellulose , gel filtration , concanavalin a , and l-arginine affinity columns , resulting in a 135,000-fold , 110,000-fold , and 2,800-fold purification for bovine adrenal medulla , brain , and pituitary , respectively .
C0003765
l-arginine
C0032002
pituitary