In both cases only sublimation of rac-alanine and the formation of the cyclic dipeptide can be observed.
In contrast, after thermolysis of the glycine intercalate under the same conditions the cyclic dipeptide (piperazine-2,5-dione) and unreacted glycine were found.
This scheme was applied to an alanine dipeptide and the conformations obtained were observed with all but one of the methods.
A preliminary screening of the enthalpy aspect of the problem shows that formation of a dipeptide is endothermic in a neutral process except if the anhydride derivative is used.
The resulting molecule is called a "dipeptide", and short stretches of amino acids (usually, fewer than thirty) are called "peptides" or polypeptides.
It recognises muramyl dipeptide, a component of the cell wall of bacteria.
It is a dipeptide of glutamic acid and hypoglycin.
The dipeptide is then nitrated by an enzyme similar to mammalian nitric oxide synthase at the four position on the tryptophan residue.
