3.1: Amino Acids and Peptides Biology LibreTexts Draw structure of glutathione a at its isoelectric point b WEEK 3: AMINO ACIDS Amino acids are the fundamental building blocks of proteins and play a central role in biochemistry. Structurally, all amino acids share a common framework consisting of a Isoelectric Point Guided Videos, Practice & Study Materials Pseudopeptide bond in Glutathione Toxicity of Glutathione Binding Metals: A Review of Targets and Mechanisms