Rational design

In chemical biology and biomolecular engineering, rational design is the strategy of creating new molecules with a certain functionality, based upon the ability to predict how the molecule's structure will affect its behavior through physical models. This can be done either from scratch or by making calculated variations on a known structure, and is usually contrasted with directed evolution. In chemical biology and biomolecular engineering, rational design is the strategy of creating new molecules with a certain functionality, based upon the ability to predict how the molecule's structure will affect its behavior through physical models. This can be done either from scratch or by making calculated variations on a known structure, and is usually contrasted with directed evolution. As an example, rational design is used to decipher collagen stability, mapping ligand-receptor interactions, unveiling protein folding and dynamics, and creating extra-biological structures by using flourinated amino acids. To treat cancer, rational design is used for targeted therapies where proteins are engineered to modify the communication of cells with their environment. There is also the rational design of alfa-alkyl auxin molecules, which are auxin analogs capable of binding and blocking the formation of the hormone receptor complex.