ANALYTICAL METHOD FOR FAB AND FAB' MOLECULES
    21.
    发明申请
    ANALYTICAL METHOD FOR FAB AND FAB' MOLECULES 有权
    FAB和FAB'分子的分析方法

    公开(公告)号:US20140242625A1

    公开(公告)日:2014-08-28

    申请号:US14275055

    申请日:2014-05-12

    CPC classification number: C12Q1/37 G01N33/6857 G01N2333/96433

    Abstract: A method of measuring acidic species generated by degradation of a Fab or Fab′ component of a Fab-PEG or a Fab′-PEG is provided. The method involves: a) cleaving PEG and a linker from the Fab-PEG or Fab′-PEG with an enzyme; b) optionally separating the PEG and linker from the Fab or Fab′ to provide isolated Fab or Fab′; and c) quantitatively analyzing acidic species associated with the cleaved Fab or Fab′ and/or the cleaved PEG.

    Abstract translation: 提供了测量由Fab-PEG或Fab'-PEG的Fab或Fab'成分降解而产生的酸性物质的方法。 该方法包括:a)用酶切割PEG和Fab-PEG或Fab'-PEG的接头; b)任选地将PEG和接头与Fab或Fab'分离以提供分离的Fab或Fab'; 和c)定量分析与切割的Fab或Fab'和/或切割的PEG相关的酸性物质。

    Multivalent antibodies
    26.
    发明授权

    公开(公告)号:US10421816B2

    公开(公告)日:2019-09-24

    申请号:US15165131

    申请日:2016-05-26

    Abstract: The present invention provides a multivalent antibody or a heavy/light chain component thereof comprising: a heavy chain comprising a constant region fragment, said constant region fragment located between two variable domains which are not a cognate pair, the heavy chain further comprising an Fc region with at least one domain selected from CH2, CH3 and combinations thereof, with the proviso that the heavy chain contains no more than one CH1 domain and only contains two variable domains, and a light chain comprising a constant region fragment located between two variable domains which are not a cognate pair, wherein said heavy and light chains are aligned to provide a first binding site formed by a first cognate pair of variable domains and a second binding site formed by a second cognate pair of variable domains.

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