Short-term:
If you're looking at the enzymatic synthesis or hydrolysis of dipeptides like Alanyl-Alanine, you might find interesting papers in biochemical journals discussing the specificity of dipeptidases or the efficiency of enzymatic synthesis of such compounds.
Upon using AlaAlanylLons, I was immediately struck by its... well, let's just say, "cracked" state. The product arrived with visible signs of wear and tear, and it quickly became apparent that it was not functioning as intended.