POLYPEPTIDE EXPRESSION METHOD
    1.
    发明申请
    POLYPEPTIDE EXPRESSION METHOD 审中-公开
    多肽表达方法

    公开(公告)号:US20150064765A1

    公开(公告)日:2015-03-05

    申请号:US14394771

    申请日:2013-04-23

    Abstract: A method for the production of a polypeptide of interest in a host cell, which method comprises: a. providing a host cell which harbours a nucleic acid encoding a polypeptide of interest, wherein the polypeptide of interest is modified so that it comprises fewer methionine and/or lysine residues than a reference polypeptide, excluding any initial methionine amino acid located at the N-terminal end of the polypeptide sequence; b. cultivating the host cell under conditions suitable for production of the polypeptide; and, optionally, c. recovering the compound of interest. The invention also relates to a modified polypeptide which comprises fewer methionine and/or lysine residues than a reference polypeptide, excluding any initial methionine amino acid located at the N-terminal end of the polypeptide sequence.

    Abstract translation: 一种在宿主细胞中产生感兴趣的多肽的方法,该方法包括:a。 提供宿主细胞,其含有编码感兴趣的多肽的核酸,其中所述目的多肽被修饰,使得其包含比参考多肽更少的甲硫氨酸和/或赖氨酸残基,不包括位于N端的任何初始甲硫氨酸氨基酸 多肽序列的末端; b。 在适于生产多肽的条件下培养宿主细胞; 和可选地,c。 回收目的化合物。 本发明还涉及一种修饰的多肽,其包含比参考多肽更少的甲硫氨酸和/或赖氨酸残基,不包括位于多肽序列的N-末端的任何初始甲硫氨酸氨基酸。

    Proline-specific endoprotease and use thereof

    公开(公告)号:US10202594B2

    公开(公告)日:2019-02-12

    申请号:US15314892

    申请日:2015-06-03

    Abstract: The present invention relates to a polypeptide having proline-specific endoprotease activity, wherein the polypeptide has less than 70% residual activity when the polypeptide has been kept at a temperature of 65° C. for 15 min.The invention further relates to a polypeptide having proline-specific endoprotease activity comprising an amino acid sequence according to SEQ ID NO: 1, wherein SEQ ID NO: 1 comprises at least one combination of amino acid substitutions selected from the group consisting of a combination selected from the group consisting of (K238E, I204V, V460A), (F279S, A242V, N507I), (T145A, K424M), (T359A, F379S), (M170I, A421T), (N441S, G484S), (L470H, Q288R), (L470H, E387G), (T281S, L373I), (P304A, P469A), and (P466T, P469Q), a nucleic acid encoding a polypeptide having proline-specific endoprotease activity, a method of making a variant polypeptide having proline-specific endoprotease activity, a recombinant host cell and a method of producing the polypeptide and a process for the preparation of a food or feed product wherein the polypeptide is used.

    Proline-specific endoprotease and use thereof

    公开(公告)号:US10294467B2

    公开(公告)日:2019-05-21

    申请号:US15314825

    申请日:2015-06-03

    Abstract: The present invention relates to a polypeptide having proline-specific endoprotease activity, wherein the polypeptide has less than 70% residual activity when the polypeptide has been kept at a temperature of 65° C. for 15 min.The invention further relates to a polypeptide having proline-specific endoprotease activity comprising an amino acid sequence according to SEQ ID NO: 1, wherein SEQ ID NO: 1 comprises at least one amino acid substitution selected from the group consisting of P469A, P469C, P469D, P469E, P469F, P469G, P469H, P469I, P469K, P469L, P469M, P469N, P469Q, P469R, P469S, P469T, P469V, P469W, P469Y, a nucleic acid encoding a polypeptide having proline-specific endoprotease activity, a method of making a variant polypeptide having proline-specific endoprotease activity, a recombinant host cell and a method of producing the polypeptide and a process for the preparation of a food or feed product wherein the polypeptide is used.

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