C - Chemistry – Metallurgy – 07 – K
Patent
C - Chemistry, Metallurgy
07
K
C07K 1/22 (2006.01) B01D 15/38 (2006.01) C07K 14/73 (2006.01) C12N 9/00 (2006.01)
Patent
CA 2050277
2050277 9012803 PCTABS00002 A process for the purification of proteins from solutions containing contaminants of similar net charge and molecular weight is provided, comprising contacting a solution containing the desired protein with an immobilized metal affinity chromatography resin in a buffer containing a low concentration of a weak ligand for the chelant of the resin. The adsorbed protein is then eluted using a buffer having a high concentration of the same weak ligand, e.g., Tris. Particularly preferred features employ agarose-iminodiacetic acid resins having copper cations and are especially useful in obtaining preparations of homogeneous, stable rsT4 proteins.
Pargellis Christopher A.
Staples Mark A.
Biogen Inc.
Pargellis Christopher A.
Smart & Biggar
Staples Mark A.
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