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. 2001 Sep 7;276(36):33465-70.
doi: 10.1074/jbc.M104494200. Epub 2001 Jun 13.

Reengineering granulocyte colony-stimulating factor for enhanced stability

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Free article

Reengineering granulocyte colony-stimulating factor for enhanced stability

B Bishop et al. J Biol Chem. .
Free article

Abstract

Granulocyte colony-stimulating factor is a long-chain cytokine that has both biological and therapeutic applications. It is involved in the production and maturation of neutrophilic progenitor cells and neutrophils and is administered to stimulate the production of white blood cells to reduce the risk of serious infection in immunocompromised patients. We have reengineered granulocyte colony-stimulating factor to improve the thermodynamic stability of the protein, focusing on enhancing the alpha-helical propensity of residues in the antiparallel 4-helix bundle of the protein. These redesigns resulted in proteins with substantially enhanced stability while retaining wild-type levels of biological activity, measured as the ability of the reengineered proteins to stimulate the proliferation of murine myeloid cells transfected with the granulocyte colony-stimulating factor receptor.

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