For example, some amino acids have polar side chains that are soluble in water; examples include serine, threonine, and asparagine. Other amino acids avoid water and are called hydrophobic ...

There are 20 amino acids that make up proteins and all have the same basic structure, differing only in the R-group or side chain they have. Amino acids are in an equilibrium between two acids with ...

or tertiary amino group, NC 1-3, [3,22,27,28,29] that determines the acid-base reactivity at clinical and pharmaceutical pH values. For adequate aqueous solubility for injections and oral ...