6.4.1.3 biotin biotin-dependent enzyme 725234 6.4.1.3 Ile activates 1864 6.4.1.3 Met activates 1864 6.4.1.3 NH4+ 20 mM, activates, monovalent cation required 662786 6.4.1.3 palmitoyl-CoA slight stimulative effect on acetyl-CoA carboxylase (116%) and propionyl-CoA carboxylase (135%) 725234 6.4.1.3 Thr activates 1864 6.4.1.3 Val activates 1864