公开(公告)号：EP1922330A1

公开(公告)日：2008-05-21

申请号：EP06779398.4

申请日：2006-09-12

申请人： CAMBRIDGE ANTIBODY TECHNOLOGY LIMITED

发明人： HARDING, Fiona Anne

IPC分类号： C07K14/21 ,  A61K47/48 ,  C07K7/08

CPC分类号： C07K14/21 ,  A61K47/642 ,  A61K47/6829 ,  C07K2319/33

摘要： The present invention provides PE CD4+ T-cell epitopes, as well as novel variants that exhibit reduced immunogenic responses, as compared to the parental PE. The present invention further provides DNA molecules that encode novel PE variants, host cells comprising DNA encoding novel PE variants, as well as methods for making PEs less immunogenic. In addition, the present invention provides various compositions that comprise these PE variants that are less immunogenic than wild-type PEs.