Controlled dissolution crosslinked protein crystals
    1.
    发明授权
    Controlled dissolution crosslinked protein crystals 失效
    受控溶解交联蛋白晶体

    公开(公告)号:US6140475A

    公开(公告)日:2000-10-31

    申请号:US834661

    申请日:1997-04-11

    摘要: Protein crystals crosslinked with a multifunctional crosslinking agent are produced that have the ability to change from an insoluble and stable form to a soluble and active form and to release protein activity at a controlled rate when a change in environment surrounding the crystals occurs. The change in environment may be a change in temperature, pH, chemical composition or shear force acting on the crystals, or a change from a concentrate to a dilute form, or a combination of the changes. The crosslinked protein crystals have a half-life activity under storage conditions greater than at least 2 times that of the soluble protein that is crystallized to form the crystals that are crosslinked, and under conditions of use have an activity similar to the soluble protein. Crosslinking is carried out by reacting a slurry of protein crystals with a multifunctional crosslinking agent such as glutaraldehyde, glyoxal, octanedialdehyde or succinaldehyde using a concentration of crosslinking agent and time for crosslinking that provides crosslinked protein crystals having the desired ability to change due to a change in environment. An epoxide multifunctional crosslinking agent may be used in combination with glutaraldehyde for crosslinking. The crosslinked protein crystals can be used for protein delivery, and may be used in cleaning agents such as detergents, pharmaceutical compositions, vaccines, personal care compositions, veterinary compositions, foods, feeds, diagnostics and decontamination formulations. Proteins used include enzymes and therapeutic or prophylactic proteins such as hormones and antibodies.

    摘要翻译: 产生与多功能交联剂交联的蛋白质晶体,其具有从不溶性和稳定形式变为可溶性和活性形式的能力,并且当发生晶体周围环境变化时以受控的速率释放蛋白质活性。 环境变化可能是作用于晶体的温度,pH值,化学成分或剪切力的变化,或从浓缩物到稀释形式的变化,或变化的组合。 交联的蛋白质晶体在保存条件下的半衰期活性大于结晶形成交联晶体的可溶性蛋白质的至少2倍,并且在使用条件下具有类似于可溶性蛋白质的活性。 通过使用交联剂的浓度和交联时间使蛋白质晶体的浆料与多功能交联剂如戊二醛,乙二醛,辛二醛或琥珀醛反应来进行交联,从而提供具有期望由于变化而变化的能力的交联蛋白质晶体 在环境中。 环氧多官能交联剂可与戊二醛组合用于交联。 交联的蛋白质晶体可以用于蛋白质递送,并且可以用于清洁剂如洗涤剂,药物组合物,疫苗,个人护理组合物,兽医组合物,食品,饲料,诊断和去污配方中。 使用的蛋白质包括酶和治疗或预防性蛋白质,例如激素和抗体。

    Methods using cross linked protein crystal formulations as catalysts in
organic solvents
    2.
    发明授权
    Methods using cross linked protein crystal formulations as catalysts in organic solvents 失效
    使用交联蛋白晶体配方作为有机溶剂催化剂的方法

    公开(公告)号:US6042824A

    公开(公告)日:2000-03-28

    申请号:US868088

    申请日:1997-06-03

    申请人: Nazer K. Khalaf

    发明人: Nazer K. Khalaf

    CPC分类号: C12N9/20 C12N11/00

    摘要: The present invention relates to the application of biocatalysis technology for performing selective chemical reactions. In one embodiment, this invention relates to crosslinked protein crystal formulations and their use as catalysts in chemical reactions involving organic solvents. This invention also provides methods for producing crosslinked protein crystal formulations and methods using them to optimize chemical reactions in organic solvents, including those used in industrial scale chemical processes.

    摘要翻译: 本发明涉及用于进行选择性化学反应的生物催化技术的应用。 在一个实施方案中,本发明涉及交联蛋白质晶体配方及其在涉及有机溶剂的化学反应中作为催化剂的用途。 本发明还提供了用于生产交联蛋白质晶体配方的方法和使用它们来优化有机溶剂中的化学反应的方法,包括在工业规模化学过程中使用的那些。

    Crosslinked protein crystal formulations and their use as catalysts in
organic solvents
    3.
    发明授权
    Crosslinked protein crystal formulations and their use as catalysts in organic solvents 失效
    交联蛋白晶体配方及其在有机溶剂中的用途

    公开(公告)号:US5932212A

    公开(公告)日:1999-08-03

    申请号:US652964

    申请日:1996-05-24

    申请人: Nazer K. Khalaf

    发明人: Nazer K. Khalaf

    CPC分类号: C12N9/20 C12N11/00

    摘要: The present invention relates to the application of biocatalysis technology for performing selective chemical reactions. In one embodiment, this invention relates to crosslinked protein crystal formulations and their use as catalysts in chemical reactions involving organic solvents. This invention also provides methods for producing crosslinked protein crystal formulations and methods using them to optimize chemical reactions in organic solvents, including those used in industrial scale chemical processes.

    摘要翻译: 本发明涉及用于进行选择性化学反应的生物催化技术的应用。 在一个实施方案中,本发明涉及交联蛋白质晶体配方及其在涉及有机溶剂的化学反应中作为催化剂的用途。 本发明还提供了用于生产交联蛋白质晶体配方的方法和使用它们来优化有机溶剂中的化学反应的方法,包括在工业规模化学过程中使用的那些。