Proteins are large molecules comprised of long chains of amino acids folded into three-dimensional shapes. They are responsible for nearly every function of the human body, including antibodies, enzymes, messenger proteins, structural components, transport, and storage.1
Therapeutic proteins can be used to replace or augment a protein that is abnormal or deficient in a particular disease. They can also augment the body’s supply of a beneficial protein to help reduce the impact of disease. Genetically engineered proteins can replace a natural protein, or they can provide a new function or activity.2
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1. National Institute of Health, U.S. National Library of Medicine, Genetics Home Reference. What are proteins and what do they do? https://ghr.nlm.nih.gov/primer/howgeneswork/protein. Accessed 4/5/2019. 2. Dimitrov DS. Therapeutic proteins. In: Voynov V, Caravella JA, eds. Therapeutic Proteins: Methods and Protocols. 2nd ed. Totowa, NJ: Humana Press, 2012.