Mutants of pyrroloquinoline quinone dependent soluble glucose dehydrogenase
    2.
    发明授权
    Mutants of pyrroloquinoline quinone dependent soluble glucose dehydrogenase 有权
    吡咯喹啉醌依赖性可溶性葡萄糖脱氢酶的突变体

    公开(公告)号:US07732179B2

    公开(公告)日:2010-06-08

    申请号:US12250241

    申请日:2008-10-13

    CPC分类号: C12N9/0006

    摘要: A mutant of PQQ-dependent soluble glucose dehydrogenase (s-GDH; EC 1.1.5.2) is provided with improved specificity for glucose as compared to maltose, having a substitution of threonine at position 348 by either glycine, alamine or serine, wherein said mutant additionally comprises, at least one mutation for improving the stability of the mutant and one or more mutation(s) for improving the affinity of the mutant to glucose, and/or one or more mutation(s) for further improving the specificity of the mutant for glucose as compared to maltose, and wherein position 348 correspond to the amino acid positions known from the A. calcoaceticus s-GDH wild-type sequence. Also disclosed are genes encoding such mutant s-GDH, and different applications of these s-GDH mutants, particularly for determining the concentration of glucose in a sample.

    摘要翻译: 与麦芽糖相比,PQQ依赖性可溶性葡萄糖脱氢酶(s-GDH; EC 1.1.5.2)的突变体具有改善的葡萄糖特异性,其具有通过甘氨酸,丙氨酸或丝氨酸取代位置348处的苏氨酸,其中所述突变体 还包含至少一个用于提高突变体的稳定性的突变和用于提高突变体对葡萄糖的亲和力的一个或多个突变,和/或用于进一步提高突变体的特异性的一个或多个突变 用于与麦芽糖相比的葡萄糖,并且其中位置348对应于从A.calcoaceticus s-GDH野生型序列已知的氨基酸位置。 还公开了编码这种突变体s-GDH的基因以及这些s-GDH突变体的不同应用,特别是用于测定样品中葡萄糖浓度。

    Thermostable mutants of pyrroloquinoline quinone dependent glucose dehydrogenase
    3.
    发明授权
    Thermostable mutants of pyrroloquinoline quinone dependent glucose dehydrogenase 有权
    吡咯并喹啉醌依赖性葡萄糖脱氢酶的热稳定突变体

    公开(公告)号:US07781196B2

    公开(公告)日:2010-08-24

    申请号:US11665437

    申请日:2005-10-14

    CPC分类号: C12N9/0006

    摘要: The present invention relates to a mutant protein of PQQ-dependent s-GDH characterized in that in at least one of the positions 122 and 124 the amino acid lysine is present, wherein these positions correspond to the amino acid positions known from the A. calcoaceticus s-GDH wild-type sequence (SEQ ID NO: 2), it also discloses genes encoding such mutant s-GDH, and different applications of these s-GDH mutants, particularly for determining the concentration of glucose in a sample.

    摘要翻译: 本发明涉及PQQ依赖性s-GDH的突变蛋白,其特征在于在位置122和124中的至少一个位置存在氨基酸赖氨酸,其中这些位置对应于来自A.calcoacetus的已知氨基酸位置 s-GDH野生型序列(SEQ ID NO:2),还公开了编码这种突变体s-GDH的基因,以及这些s-GDH突变体的不同应用,特别是用于测定样品中葡萄糖浓度。

    Thermostable mutants of pyrroloquinoline quinone dependent glucose dehydrogenase
    4.
    发明申请
    Thermostable mutants of pyrroloquinoline quinone dependent glucose dehydrogenase 有权
    吡咯并喹啉醌依赖性葡萄糖脱氢酶的热稳定突变体

    公开(公告)号:US20090305316A1

    公开(公告)日:2009-12-10

    申请号:US11665437

    申请日:2005-10-14

    CPC分类号: C12N9/0006

    摘要: The present invention relates to a mutant protein of PQQ-dependent s-GDH characterized in that in at least one of the positions 122 and 124 the amino acid lysine is present, wherein these positions correspond to the amino acid positions known from the A. calcoaceticus s-GDH wild-type sequence (SEQ ID NO: 2), it also discloses genes encoding such mutant s-GDH, and different applications of these s-GDH mutants, particularly for determining the concentration of glucose in a sample.

    摘要翻译: 本发明涉及PQQ依赖性s-GDH的突变蛋白,其特征在于在位置122和124中的至少一个位置存在氨基酸赖氨酸,其中这些位置对应于来自A.calcoacetus的已知氨基酸位置 s-GDH野生型序列(SEQ ID NO:2),还公开了编码这种突变体s-GDH的基因,以及这些s-GDH突变体的不同应用,特别是用于测定样品中葡萄糖浓度。

    MUTANTS OF PYRROLOQUINOLINE QUINONE DEPENDENT SOLUBLE GLUCOSE DEHYDROGENASE
    6.
    发明申请
    MUTANTS OF PYRROLOQUINOLINE QUINONE DEPENDENT SOLUBLE GLUCOSE DEHYDROGENASE 有权
    吡咯烷醇喹诺酮的可溶性葡萄糖脱氢酶

    公开(公告)号:US20090148874A1

    公开(公告)日:2009-06-11

    申请号:US12250241

    申请日:2008-10-13

    CPC分类号: C12N9/0006

    摘要: A mutant of PQQ-dependent soluble glucose dehydrogenase (s-GDH; EC 1.1.5.2) is provided with improved specificity for glucose as compared to maltose, having a substitution of threonine at position 348 by either glycine, alamine or serine, wherein said mutant additionally comprises, at least one mutation for improving the stability of the mutant and one or more mutation(s) for improving the affinity of the mutant to glucose, and/or one or more mutation(s) for further improving the specificity of the mutant for glucose as compared to maltose, and wherein position 348 correspond to the amino acid positions known from the A. calcoaceticus s-GDH wild-type sequence. Also disclosed are genes encoding such mutant s-GDH, and different applications of these s-GDH mutants, particularly for determining the concentration of glucose in a sample.

    摘要翻译: 与麦芽糖相比,PQQ依赖性可溶性葡萄糖脱氢酶(s-GDH; EC 1.1.5.2)的突变体具有改善的葡萄糖特异性,其具有通过甘氨酸,丙氨酸或丝氨酸取代位置348处的苏氨酸,其中所述突变体 还包含至少一个用于提高突变体的稳定性的突变和用于提高突变体对葡萄糖的亲和力的一个或多个突变,和/或用于进一步提高突变体的特异性的一个或多个突变 用于与麦芽糖相比的葡萄糖,并且其中位置348对应于从A.calcoaceticus s-GDH野生型序列已知的氨基酸位置。 还公开了编码这种突变体s-GDH的基因以及这些s-GDH突变体的不同应用,特别是用于测定样品中葡萄糖浓度。