CRYSTAL STRUCTURES OF HETERODIMERIC FC DOMAINS
    3.
    发明公开
    CRYSTAL STRUCTURES OF HETERODIMERIC FC DOMAINS 有权
    KRISTALLSTRUKTUREN AUS HETERLDEREN FC-DOMÄNEN

    公开(公告)号:EP2914634A4

    公开(公告)日:2016-05-11

    申请号:EP13851307

    申请日:2013-10-31

    申请人: ZYMEWORKS INC

    摘要: Disclosed are the atomic coordinates of compositions comprising Fc heterodimer proteins in crystalline form derived from high resolution x-ray diffraction. Further disclosed are systems and methods for using all or a portion of these atomic coordinates to identify and design improved Fc heterodimer proteins. Further disclosed are compositions comprising a mixture of (i) a solubilized Fc heterodimer protein and (ii) a mother liquor solution. The mother liquor solution comprises between 2% and 10% (v/v) ethylene glycol, between 10% and 25% (w/v) polyethylene glycol having an average molecular weight of between 2000 Daltons and 10000 Daltons, and between 0.05 M and 0.40 M ammonium iodide. Further disclosed are systems and methods of identifying a mutation which promotes heterodimeric Fc chain pair formation in which structure based modeling is performed to identify a candidate mutation to an Fc chain using all or a portion of the disclosed three-dimensional atomic coordinates.

    摘要翻译: 公开了包含衍生自高分辨率x射线衍射的结晶形式的Fc异二聚体蛋白质的组合物的原子坐标。 进一步公开的是使用这些原子坐标的全部或部分来鉴定和设计改进的Fc异二聚体蛋白的系统和方法。 还公开了包含(i)溶解的Fc异二聚体蛋白和(ii)母液溶液的混合物的组合物。 母液溶液包含2%至10%(v / v)乙二醇,10%至25%(w / v)的平均分子量介于2000道尔顿与10000道尔顿之间的聚乙二醇和0.05M至 0.40M碘化铵。 进一步公开的是鉴定促进异源二聚体Fc链对形成的突变的系统和方法,其中使用所公开的三维原子坐标的全部或一部分进行基于结构的建模来鉴定到Fc链的候选突变。

    HETEROMULTIMERS WITH REDUCED OR SILENCED EFFECTOR FUNCTION
    6.
    发明公开
    HETEROMULTIMERS WITH REDUCED OR SILENCED EFFECTOR FUNCTION 审中-公开
    异种麻醉剂减肥药ODERSCHALLGEDÄMPFTEREFFEKTORFUNKTION

    公开(公告)号:EP3004174A4

    公开(公告)日:2017-01-04

    申请号:EP14803370

    申请日:2014-05-30

    申请人: ZYMEWORKS INC

    摘要: Provided herein are heteromultimer constructs with reduced or silenced effector function. In an embodiment is provided a heteromultimer construct comprising an IgG Fc construct having a first and a second Fc polypeptide, each Fc polypeptide comprising a modified lower hinge region wherein: the modified lower hinge region of said first Fc polypeptide comprises at least one amino acid modification, the modified lower hinge region of said second Fc polypeptide comprises at least one amino acid modification which is different from at least one amino acid modification of said first Fc polypeptide, and the IgG Fc construct displays reduced binding to all Fcγ receptors and to C1q protein as compared to a corresponding parent IgG Fc construct. Also provided are methods of producing such heteromultimer constructs, and methods of reducing ADCC for an antibody construct by reducing effector function.

    摘要翻译: 本文提供具有降低或沉默的效应子功能的异源多聚体构建体。 在一个实施方案中提供了包含具有第一和第二Fc多肽的IgG Fc构建体的多组分体构建体,每个Fc多肽包含修饰的下铰链区,其中:所述第一Fc多肽的修饰的下铰链区包含至少一个氨基酸修饰 所述第二Fc多肽的修饰的下铰链区包含与所述第一Fc多肽的至少一个氨基酸修饰不同的至少一个氨基酸修饰,并且IgG Fc构建体显示与所有Fcγ受体和C1q蛋白的结合减少 与相应的亲本IgG Fc构建体相比。 还提供了产生这种异源多聚体构建体的方法,以及通过降低效应子功能降低抗体构建体的ADCC的方法。