Methods of purifying polypeptides

Disclosed is a method for purifying an antibody or immunoadhesin from a composition comprising the antibody or immunoadhesin and at least one contaminant, wherein the method comprises either (i) or (ii): (i) sequential steps of (a) loading the composition onto a cation exchange material at a loading...

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Bibliographische Detailangaben
Hauptverfasser: MYERS DEANNA E, KELLEY BRIAN DAVID, PETTY KRISTA MARIE, MCCOOEY BETH, LIU HUI F
Format: Patent
Sprache:eng
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Zusammenfassung:Disclosed is a method for purifying an antibody or immunoadhesin from a composition comprising the antibody or immunoadhesin and at least one contaminant, wherein the method comprises either (i) or (ii): (i) sequential steps of (a) loading the composition onto a cation exchange material at a loading density of greater than about 150 g/L of cation exchange material; and (b) loading a composition recovered from the cation exchange material onto a mixed mode material; or (ii) sequential steps of (a) loading the composition onto a mixed mode material; and (b) loading a composition recovered from mixed mode material onto a cation exchange material at a loading density of greater than about 150 g/L of cation exchange material.