Expression of g-csf and muteins thereof and their use
    3.
    发明公开
    Expression of g-csf and muteins thereof and their use 失效
    表达von G-CSF,Muteine davon und deren Verwendung。

    公开(公告)号:EP0256843A1

    公开(公告)日:1988-02-24

    申请号:EP87307114.6

    申请日:1987-08-11

    申请人: CETUS CORPORATION

    IPC分类号: C12N15/00 C12P21/02

    CPC分类号: C07K14/535 A61K38/00

    摘要: Human recombinant G-CSF (hr-G-CSF), an mRNA fraction encoding hr-G-CSF, a DNA sequence encoding hr-G-CSF, modified DNA sequences encoding hr-G-CSF, that are expressed at high levels in recombinant hosts are disclosed. Modifications to the 5' DNA sequence encoding mature mG-CSF are also disclosed. The modifications to the third position nucleotide of at least one in the 5' region codon of the DNA sequence of G-CSF result in enhanced expression of mG-CSF protein in recombinant host cells, without changing the amino acid sequence of the protein. Other modifications yield muteins of G-CSF in which the NH 2 -terminal amino acid is not methionine when produced from a recombinant host cell. Expression vectors carrying the altered mG-CSF DNA sequence are disclosed and claimed.

    摘要翻译: 人重组G-CSF(hr-G-CSF),编码hr-G-CSF的mRNA级分,编码hr-G-CSF的DNA序列,编码hr-G-CSF的修饰DNA序列,以高水平表达 公开了重组宿主。 还公开了编码成熟mG-CSF的5分钟DNA序列的修饰。 在G-CSF的DNA序列的5分钟区域密码子中至少一个的第三位核苷酸的修饰导致重组宿主细胞中mG-CSF蛋白的表达增强,而不改变蛋白质的氨基酸序列。 当由重组宿主细胞产生时,其它修饰产生G-CSF的突变蛋白,其中NH2末端氨基酸不是甲硫氨酸。 携带改变的mG-CSF DNA序列的表达载体被公开并要求保护。