1.14.16.2 L-tyrosine + a 5,6,7,8-tetrahydropteridine + O2 = L-dopa + a 4a-hydroxy-5,6,7,8-tetrahydropteridine active binding site 438700 1.14.16.2 L-tyrosine + a 5,6,7,8-tetrahydropteridine + O2 = L-dopa + a 4a-hydroxy-5,6,7,8-tetrahydropteridine H-NMR analysis of conformation of the complex between phenylalanine, 6-methyltetrahydropterin and isoform hTH1 438703 1.14.16.2 L-tyrosine + a 5,6,7,8-tetrahydropteridine + O2 = L-dopa + a 4a-hydroxy-5,6,7,8-tetrahydropteridine ligand binding model, hTH1 438710 1.14.16.2 L-tyrosine + a 5,6,7,8-tetrahydropteridine + O2 = L-dopa + a 4a-hydroxy-5,6,7,8-tetrahydropteridine mechanism 438686, 438701, 438711 1.14.16.2 L-tyrosine + a 5,6,7,8-tetrahydropteridine + O2 = L-dopa + a 4a-hydroxy-5,6,7,8-tetrahydropteridine phosphorylation site of hTH1 is Ser-40 438708 1.14.16.2 L-tyrosine + a 5,6,7,8-tetrahydropteridine + O2 = L-dopa + a 4a-hydroxy-5,6,7,8-tetrahydropteridine requires Fe2+, activated by phosphorylation, catalysed by EC 2.7.1.128 [acetyl-CoA carboxylase] kinase - 1.14.16.2 L-tyrosine + a 5,6,7,8-tetrahydropteridine + O2 = L-dopa + a 4a-hydroxy-5,6,7,8-tetrahydropteridine secondary structure and conformation analysis of phosphorylated and unphosphorylated isoform hTH1 438708 1.14.16.2 L-tyrosine + a 5,6,7,8-tetrahydropteridine + O2 = L-dopa + a 4a-hydroxy-5,6,7,8-tetrahydropteridine stereochemical analysis of ligand binding 438700