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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 fluorinated 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.
Other applications of rational design include:
- Ojima, Iwao (2009). Fluorine in Medicinal Chemistry and Chemical Biology. West Sussex: John Wiley & Sons, Ltd., Publications. p. 411. ISBN 9781405167208.
- Richards-Kortum, Rebecca (2010). Biomedical Engineering for Global Health. Cambridge: Cambridge University Press. p. 178. ISBN 9780521877978.
- Kombrink, Erich; Kaiser, Markus (2016). When Chemistry Meets Biology – Generating Innovative Concepts, Methods and Tools for Scientific Discovery in the Plant Sciences. Lausanne: Frontiers Media SA. p. 90. ISBN 9782889199280.
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