发明名称 Compositions and methods for treating IgE-mediated disorders
摘要 The present invention relates to immunoglobulins that bind IgE and FcγRIIb with high affinity, said compositions being capable of inhibiting cells that express membrane-anchored IgE. Such compositions are useful for treating IgE-mediated disorders, including allergies and asthma.
申请公布号 US9540451(B2) 申请公布日期 2017.01.10
申请号 US201313860484 申请日期 2013.04.10
申请人 Xencor, Inc. 发明人 Desjarlais John R.;Chu Seung Y.;Horton Holly M.;Bernett Matthew J.
分类号 C07K16/42;C07K16/46 主分类号 C07K16/42
代理机构 Morgan, Lewis & Bockius, LLP 代理人 Silva Robin M.;Nguyen Louis T.;Morgan, Lewis & Bockius, LLP
主权项 1. An antibody comprising a variable region and variable Fc region as compared to a human IgG Fc region, wherein said variable region binds membrane anchored IgE, wherein the variable heavy chain of said variable region comprises SEQ ID NO: 17, wherein the variable light chain of said variable region comprises SEQ ID NO: 21, and wherein said Fc region is a variable Fc region comprising an amino acid substitution at position 267, wherein said substitution is 267E or 267D, and wherein said numbering is according to the EU index of Kabat.
地址 Monrovia CA US