IMPROVED ANTIBODIES OF THE CLASS IGG4

    公开(公告)号:SG187677A1

    公开(公告)日:2013-03-28

    申请号:SG2013007950

    申请日:2011-08-19

    Applicant: UCB PHARMA SA

    Abstract: The present invention provides an antibody of the class IgG4 comprising at least one heavy chain which comprises a CH1 domain and a hinge region, wherein in each heavy chain: a. the inter-chain cysteine at position 127, numbered according to the Kabat numbering system, in the CH1 domain is substituted with another amino acid; and b. one or more of the amino acids positioned in the upper hinge region is substituted with cysteine.

    BIOLOGICAL PRODUCTS
    26.
    发明专利

    公开(公告)号:CA2737241A1

    公开(公告)日:2010-04-01

    申请号:CA2737241

    申请日:2009-09-25

    Applicant: UCB PHARMA SA

    Abstract: A multivalent antibody fusion protein which comprises an immunoglobulin moiety, for example a Fab or Fab' fragment, with a first specificity for an antigen of interest, and further comprises two single domain antibodies (dAb) with specificity for a second antigen of interest, wherein the two single domain antibodies are linked by a disulfide bond. There is also provided particular dual specificity antibody fusion proteins comprising a Fab or Fab' fragment and one or more single domain antibodies which may be stabilised by a disulfide bond therebetween.

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