Crystallization and Preliminary X-Ray Studies on Human Epidermal Growth Factor

Abstract

Single crystals of human epidermal growth factor have been prepared from a polyethylene glycol solution and characterized by X-ray diffraction. The crystals grow in a space group of P2₁ with unit cell dimensions of a=32.7, b=32.5, c= 22.3 Å, and β=96.9°. They contain a single molecule per asymmetric unit and show better diffraction than 2.5 Å.