Methods directed to crystalline biomolecules
AssigneeAmgen Inc.
InventorsRizwan Sharnez, William Trieu, Marc A. Caporini, Ron C. Kelly, Neill Burt, Laura Nicholson, Twinkle R. Christian
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Abstract
Disclosed herein are methods of preparing a composition comprising crystalline biomolecules, for example, crystalline antibodies. In exemplary embodiments, the method comprises forming a fluidized bed of crystalline biomolecules using, for example, a counter-flow centrifuge to exchange buffer and/or to concentrate the crystalline biomolecules in a solution. Also provided are methods of detecting crystalline biomolecules and/or amorphous biomolecules in a sample.
Claims19
A method of detecting crystalline antibodies and/or amorphous antibodies in a sample, the method comprising:
- a) obtaining a plurality of 1H NMR Carr-Purcell-Meiboom-Gill (CPMG) spectra of the sample, and
- b) obtaining a 13C NMR cross-polarization (CP) spectra of the sample.
Dependencies are inferred from the claim text.