EXTRACTION METHOD FOR HYDROPHILIC RECOMBINANT PROTEIN
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United States of America Patent
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Nov 19, 2015
app pub date -
Dec 18, 2013
filing date -
Dec 27, 2012
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Abstract
The present invention relates to a method for extracting a hydrophilic recombinant protein from a host expressing a hydrophilic recombinant protein. The method includes: a lysate acquisition step in which a dissolving solvent is added to the host expressing a hydrophilic recombinant protein so as to obtain a host cell lysate; and a step in which a diluting solvent is added to the host cell lysate obtained in the lysate acquisition step, an insoluble substance is separated from the obtained dilution, and a supernatant containing the hydrophilic recombinant protein is collected. The hydrophilic recombinant protein has a hydropathy index of 0 or less. The dissolving solvent is an aprotic polar solvent. The diluting solvent is an aqueous solvent.
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