Chemistry: natural resins or derivatives; peptides or proteins; – Proteins – i.e. – more than 100 amino acid residues – Hormones – e.g. – prolactin – thymosin – growth factors – etc.
Patent
1989-06-12
1992-03-31
Moskowitz, Margaret
Chemistry: natural resins or derivatives; peptides or proteins;
Proteins, i.e., more than 100 amino acid residues
Hormones, e.g., prolactin, thymosin, growth factors, etc.
530419, 530421, C07K 324
Patent
active
051010186
ABSTRACT:
A method for recovering a recombinant protein from a protein solution containing high molecular weight containing proteins by directly adding amine or quaternary ammonium compounds to the solution in amounts sufficient to selectively precipitate the high molecular weight protein contaminants.
The high molecular weight precipitates are removed and the solution is further processed to remove low molecular weight contaminating proteins and other non-protein contaminants. The recombinant protein is subsequently recovered and further processed to produce a protein composition suitable for its intended use.
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Barker Ray E.
Mehrotra Vikram P.
Farquer Thomas L.
Furman Keith C.
Guffey Wendell Ray
International Minerals & Chemical Corp.
Moskowitz Margaret
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