41. In prokaryotes and eukaryotic microorganisms it is involved in the biosynthesis of arginine . 42. A glutamate on a nearby loop interacts with nitrogens on the target arginine residue. 43. Arginine is the main active ingredient in the modified Red Bull sold in Japan.44. The guanidine group of arginine residues condense with malondialdehyde to give 2-aminopyrimidines. 45. The enzyme endothelial nitric oxide synthase produces nitric oxide from arginine in endothelial cells. 46. These six are arginine , cysteine, glycine, glutamine, proline and tyrosine. 47. It has been used as a reagent to modify the amino acid, arginine . 48. It contains the enzyme peptidyl-arginine deiminase, which is involved in citrullination. 49. The tryptophan chain also interacts with the carbon atoms of the arginine at P3. 50. This enzyme participates in arginine and proline metabolism.
