Secretory Expression of the Superactive [ Lys~ ( 17,18), Glu~ ( 21)]-Glucagon in E. coli 超活性胰高血糖素的分泌表达
A trial with 2 factor quadratic regression right cross design was conducted to study the influence of dietary, lysine ( Lys) and methionine ( Met) levels on performance and feather growth of ring-necked pheasants from 9 to 6 weeks old. 本试验采用二因素二次回归正交设计,探讨饲粮赖氨酸和蛋氨酸水平对9-16周龄雉鸡生产性能和羽毛生长的影响。
The three enzymes share the same PD-( E/ D) XK motif; and the activity center composed of exactly the same amino acid residues, namely Glu, Asp, Glu and Lys. 三种核酸酶都具有相同PD-(E/D)XK基序特征,活性中心氨基酸残基组成完全一致,分别是Glu、Asp、Glu和Lys。