THE BASIC PRINCIPLES OF RETATRUTIDE

A peptide is actually a molecule consisting of two or even more amino acids joined jointly by peptide bonds. The general structure of an amino acid is: R-CH(NH2)COOH. Each individual amino acid is often a monomer that kinds a peptide polymer chain with other amino acids once the carboxyl group (-COOH) of 1 amino acid reacts Along with the amino gro