会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 6. 发明授权
    • Cellulase variants with reduced inhibition by glucose
    • 纤维素酶变体具有降低的葡萄糖抑制作用
    • US08012734B2
    • 2011-09-06
    • US12355373
    • 2009-01-16
    • James A. LavigneChristopher M. D. HillAnnie TremblayPatrick St-PierreJohn J. Tomashek
    • James A. LavigneChristopher M. D. HillAnnie TremblayPatrick St-PierreJohn J. Tomashek
    • C12P21/06C12N9/02C12N9/42C12N1/20C07H21/04
    • C12N9/2437C12P7/10C12P19/14Y02E50/16
    • A Family 6 cellulase variant enzyme comprising one or more than one amino acid substitution selected from a basic, polar or non-polar amino acid at position 103, a valine or isoleucine at position 136, a tyrosine at position 186, a glutamic acid or glutamine at position 365 and a glutamine at position 410 is provided (said position determined form alignment of the parental Family 6 with SEQ ID NO: 1). Genetic constructs and genetically modified microbes comprising DNA sequences encoding the Family 6 cellulase variant are also provided. Family 6 cellulases of the invention display reduced inhibition by glucose relative to the parent Family 6 cellulases. Such cellulases find use in a variety of applications in industry, e.g., in the hydrolysis of pretreated lignocellulosic feedstock, that require cellulose activity in the presence glucose concentrations that would otherwise inhibit the activity of the parental enzyme.
    • 包含一个或多于一个氨基酸取代的家族6纤维素酶变体酶,其选自103位的碱性,极性或非极性氨基酸,136位的缬氨酸或异亮氨酸,第186位的酪氨酸,谷氨酸或谷氨酰胺 在位置365处提供位置410处的谷氨酰胺(所述位置由亲本家族6与SEQ ID NO:1的比对确定)。 还提供了包含编码6族纤维素酶变体的DNA序列的遗传构建体和遗传修饰微生物。 本发明的家族6纤维素酶相对于亲本家族6纤维素酶显示出降低的葡萄糖抑制。 这种纤维素酶可用于工业中的各种应用,例如在预处理的木质纤维素原料的水解中,其在需要纤维素活性的情况下存在葡萄糖浓度,否则其将抑制亲本酶的活性。