ANTIBODY DESIGN USING ANTI-LIPID ANTIBODY CRYSTAL STRUCTURES

摘要

The present invention provides crystalline forms of an anti-lipid antibody or fragment thereof, which may further comprise a lipid ligand of said antibody and/or salts, metals, or co-factors. Methods for making such crystals and co-crystals are provided. The lipid may be a bioactive lipid, including sphingolipids such as S1P. X-ray coordinates of such a crystal are provided, as are methods of using this information in antibody design or optimization. Methods for designing a humanized antibody to a lipid are provided. These methods may be performed in silico and may be intended to enhance binding affinity of an antibody to its original target lipid, and/or to alter binding specificity. Antibodies produced by these methods are also provided.