title: Fast preparation of recombinant human stem cell factor from inclusion bodies using different hydrophobic interaction chromatographic columns.
abstract: A method was developed to increase the recovery of recombinant human stem cell factor (rhSCF) from inclusion bodies using high performance hydrophobic interaction chromatography (HPHIC). The target protein was first solubilized in 8.0 mol/L urea solution, and was purified and refolded simultaneously by HPHIC with different chromatographic cakes. Experimental conditions, such as the ligand structures of stationary phase and the composition of mobile phase, were optimized. Under the optimal conditions, high mass recoveries and specific activities of rhSCF were acquired, the purities of rhSCF were above 95.5%, and the mass recoveries of rhSCF were above 49.6%. The final product was also verified as monomer by size exclusion chromatography and matrix assisted laser desorption ionization time of flight mass spectrometry (MALDI-TOF-MS). These results provided further evidence that HPHIC is an effective tool in the refolding and purification of recombinant proteins.
authors.affiliation: Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of Ministry of Education, Institute of Modern Separation Science, Northwest University, Shaanxi Key Laboratory of Modern Separation Science, Xi'an 710069, China. llwang@nwu.edu.cn
authors.forename: Lili
authors.initials: L
authors.lastname: Wang
authors.forename: Chaozhan
authors.initials: C
authors.lastname: Wang
authors.forename: Xindu
authors.initials: X
authors.lastname: Geng
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D004926:Escherichia coli / Q000235:genetics / Q000378:metabolism; D006801:Humans; D057927:Hydrophobic and Hydrophilic Interactions; D002479:Inclusion Bodies / Q000378:metabolism*; D058849:Protein Refolding; D011994:Recombinant Proteins / Q000096:biosynthesis / Q000235:genetics / Q000302:isolation & purification; D019089:Stem Cell Factor / Q000096:biosynthesis* / Q000235:genetics
chemical_list: D011994:Recombinant Proteins; D019089:Stem Cell Factor