With this lysine-derived part, lysine has a favourable (or essential) effect maintaining stable condition without breaking even after NH2 deletion in the animal or human body. As further suggestions: Several water soluble vitamin B groups; flavine-adenine dinucleotide, pantothenic acid, and cobamamide (B12) have similar two groups in their own chemical structure and they act as coenzyme [1]. It is thought that this (two similar groups) in the chemical structure gives the material to work as a special effect in the body as a coenzyme. The activating effect of several water soluble B-group vitamins might be resulted from the emission of energy with the turmoil on pending in the centre of the molecule. In another expression, the rotation or vibration or seesawing of the two parts among the molecule. Here, the pairs of the molecule had to be not the same structure but to be the structure of similarity. Through our theoretical research it is considered that the structure of lysine-derived material (C6H12N2O3) is similar to the structure of several water soluble B-group vitamins (cobamamide (B12), flavine-adenine dinucleotide, pantothenic acid).