Identification and characterization of native proteins of Escherichia coli BL-21 that display affinity towards Immobilized Metal Affinity Chromatography and Hydrophobic Interaction Chromatography Matrices.
[No authors listed]
摘要
The purpose of this study was to identify and characterize Escherichia coli proteins which display affinity towards both Immobilized Metal (IMAC) and Hydrophobic Interaction Chromatography (HIC). Co(II) IMAC was chosen as the primary capture step, followed by HIC employing different concentrations of salt to promote adsorption. Results provided insight on this rather small pool of E. coli proteins. Nine out of the ten have isoelectric values less than six, and half are considered nonessential. These data indicate that the combination of IMAC and HIC could be developed as a potent method for the purification of recombinant proteins by judicious choice of the salt concentration used to promote HIC, the development of E. coli strain(s) deficient in certain genomic proteins, and the design of an IMAC-HIC affinity tail for recombinant protein isolation based on the very proteins deleted from the genome.
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基因功能
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原始数据
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文献解读
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