Human pleiotropic immune factor and muteins thereof
    4.
    发明公开
    Human pleiotropic immune factor and muteins thereof 失效
    Menschlicher pleitroper Immunfaktor und dessen Muteine。

    公开(公告)号:EP0267779A2

    公开(公告)日:1988-05-18

    申请号:EP87309935.2

    申请日:1987-11-10

    CPC分类号: C07K14/5409 A61K38/00

    摘要: A novel immune system mediator, termed pleiotropic immune factor (PIF) is provided which enhances the secretion of immunoglobulin, particularly IgA, and which promotes the growth and differentiation of eosinophils. The human PIF amino acid sequence is disclosed, and a synthetic gene is provided for cassette mutagenesis in a pcD plasmid. Mutant and native human PIFs are expressed in COS 7 monkey cells.

    摘要翻译: 提供了一种称为多效免疫因子(PIF)的新型免疫系统介质,其增强免疫球蛋白分泌,特别是IgA,并促进嗜酸性粒细胞的生长和分化。 公开了人PIF氨基酸序列,并提供了在pcD质粒中进行盒式诱变的合成基因。 突变体和天然人类PIF在COS7猴细胞中表达。