Therapeutic proteins are proteins that are engineered in the laboratory for pharmaceutical use, including noncovalent binders, proteins that affect covalent bonds which are almost all enzymes, and albumin. Therapeutic proteins are highly effective in vivo and have revolutionized treatment of diseases. Protein therapeutics permits an individualized treatment approach by supporting a specifically targeted therapeutic process by compensating the deficiency of an essential protein.

http://www.creativebiolabs.net/therapeutic-proteins_47.htm