Physics fun - Disulfide Bonds. A disulfide bond is a covalent bond formed between two sulfur atoms that are oxidized from the thiol groups of two separate cysteine amino acids within a protein. These bonds are crucial for stabilizing protein structure, helping proteins fold correctly, and can also act as regulatory switches. They are common in proteins secreted outside the cell, such as antibodies and enzymes, and are formed and controlled by specific cellular machineries. #physicstok #tricks #foodie #homeschoolersoftiktok #stemtok