METHODS FOR MODIFYING HUMAN ANTIBODIES BY GLYCAN ENGINEERING

    公开(公告)号:US20190194303A1

    公开(公告)日:2019-06-27

    申请号:US16150164

    申请日:2018-10-02

    申请人: Academia Sinica

    IPC分类号: C07K16/18 C12P21/00

    摘要: Methods for making modified Fc regions of antibodies and antibody fragments, both human and humanized, and having enhanced stability and efficacy, are provided. Antibodies comprising Fc regions with core fucose residues removed, and attached to oligosaccharides comprising terminal sialyl residues, are provided. Antibodies comprising homogeneous glycosylation of Fc regions with specific oligosaccharides are provided. Fc regions conjugated with homogeneous glycoforms of monosaccharides and trisaccharides, are provided. Methods of preparing human antibodies with modified Fc using glycan engineering, are provided.

    METHOD OF PRODUCING AND PURIFYING AN ACTIVE SOLUBLE SIALYLTRANSFERASE
    4.
    发明申请
    METHOD OF PRODUCING AND PURIFYING AN ACTIVE SOLUBLE SIALYLTRANSFERASE 有权
    生产和净化活性可溶性硅藻土的方法

    公开(公告)号:US20140057316A1

    公开(公告)日:2014-02-27

    申请号:US13813804

    申请日:2011-02-02

    IPC分类号: C12N9/10

    CPC分类号: C12N9/1081 C12Y204/99003

    摘要: The present invention relates to a method for the production and purification of a sialyltransferase polypeptide, in particular a N-Acetylgalactosamine (Gal NAc)-α-2,6-sialyltransferase I (ST6GalNAcI) polypeptide. The method comprises the steps of producing the sialyltransferase polypeptide in a Chinese Hamster Ovary (CHO) cell and purifying the polypeptide with a combination of chromatography steps. The method results in high yield of sialyltransferase polypeptide which is highly pure and active. The obtained sialyltransferase, especially ST6GalNAcI, can be employed for the glycosylation of therapeutic proteins such as G-CSF.

    摘要翻译: 本发明涉及生产和纯化唾液酸转移酶多肽,特别是N-乙酰半乳糖胺(Gal NAc)-al-2,6-sialyltransferase I(ST6GalNAcI)多肽的方法。 该方法包括在中国仓鼠卵巢(CHO)细胞中产生唾液酸转移酶多肽的步骤,并用色谱步骤的组合纯化多肽。 该方法导致高纯度和活性的唾液酸转移酶多肽的高产量。 获得的唾液酸转移酶,特别是ST6GalNAcI可用于治疗性蛋白质如G-CSF的糖基化。

    Method of producing and purifying an active soluble sialyltransferase
    6.
    发明授权
    Method of producing and purifying an active soluble sialyltransferase 有权
    生产和纯化活性可溶性唾液酸转移酶的方法

    公开(公告)号:US09222081B2

    公开(公告)日:2015-12-29

    申请号:US13813804

    申请日:2011-08-02

    IPC分类号: C12P21/06 C12N9/10

    CPC分类号: C12N9/1081 C12Y204/99003

    摘要: The present invention relates to a method for the production and purification of a sialyltransferase polypeptide, in particular a N-Acetylgalactosamine (Gal NAc)-α-2,6-sialyltransferase I (ST6GalNAcI) polypeptide. The method comprises the steps of producing the sialyltransferase polypeptide in a Chinese Hamster Ovary (CHO) cell and purifying the polypeptide with a combination of chromatography steps. The method results in high yield of sialyltransferase polypeptide which is highly pure and active. The obtained sialyltransferase, especially ST6GalNAcI, can be employed for the glycosylation of therapeutic proteins such as G-CSF.

    摘要翻译: 本发明涉及唾液酸转移酶多肽,特别是N-乙酰半乳糖胺(Gal NAc)-α-2,6-唾液酸转移酶I(ST6GalNAcI)多肽的生产和纯化方法。 该方法包括在中国仓鼠卵巢(CHO)细胞中产生唾液酸转移酶多肽的步骤,并用色谱步骤的组合纯化多肽。 该方法导致高纯度和活性的唾液酸转移酶多肽的高产量。 获得的唾液酸转移酶,特别是ST6GalNAcI可用于治疗性蛋白质如G-CSF的糖基化。