AIM: To study the application of urea gradient size exclusion chromatography (SEC) in the renaturation with simultaneous purification of recombinant human stem cell factor (rhSCF) expressed in E.

• 目的:用脲梯度体积排阻色谱(SEC)复性并同时纯化在大肠杆菌中高表达的人干细胞因子。