Why is the cysteine R configuration important in determining the structure and function of proteins?

The cysteine R configuration is important in determining the structure and function of proteins because it affects how cysteine molecules bond with other molecules in a protein. The R configuration determines the specific arrangement of atoms around the cysteine molecule, which in turn influences how it interacts with other amino acids in the protein. This interaction can impact the overall shape and stability of the protein, as well as its ability to perform its specific function within the body.