Aminopeptidase I from Streptomyces griseus has been used: to test the biochar exposure effect on the enzyme activity in circular dichroism (CD) spectroscopy studies as a positive control in p-nitroanilide degradation assay应用:
Aminopeptidase I from Streptomyces griseus is a thermostable enzyme with Glu131 and Tyr246 as key active site residues.
Aminopeptidase I from Streptomyces griseus is a thermostable enzyme with Glu131 and Tyr246 as key active site residues.
Application:
Aminopeptidase I from Streptomyces griseus has been used:
to test the biochar exposure effect on the enzyme activity
in circular dichroism (CD) spectroscopy studies
as a positive control in p-nitroanilide degradation assay
规格
规格或纯度
lyophilized powder,≥200 units/mg protein
英文名称
Aminopeptidase I from Streptomyces griseus
生化机理
灰葡萄球菌的氨肽酶 I 具有相当广泛的特异性,能够去除大多数蛋白质的 N 端残基,但倒数第二个残基为亚胺酸的情况除外。它含有两个Zn2+结合位点。来自 S. griseus 的氨肽酶 I 受 1,10-菲罗啉的抑制,并被 Ca2+ 激活六倍,Ca2+ 还能使其稳定,防止受热失活。这种单体锌金属蛋白的等电点(pI)为 5.4。氨肽酶 I 还可用作一种试剂,在两阶段试验中用合成底物检测内切蛋白酶的活性。在第一阶段,内切蛋白酶裂解多肽,如 Z-Y-X-Leu-p-硝基苯胺,X、Y 和 Z 残基根据内切蛋白酶的特异性选择。