中文同义词:
4-硝基苯基-α-D-吡喃半乳糖苷;4-硝基苯-α-D-吡喃半乳糖苷;4-NITROPHENYL Α-D-GALACTOPYRANOSIDE对硝基苯-Α-D-吡喃半乳糖苷;对硝基苯基-Α-D-吡喃半乳糖苷/4-硝基苯基-Α-D-吡喃半乳糖苷;-硝基苯基Α-D-吡喃半乳糖苷[Α-D-牛乳糖用培养基];4-硝基苯基-Α-D-吡喃半乳糖苷|4-NITROPHENYL Α-D-GALACTO-PYRAN-OSIDE;4-NITROPHENYL ALPHA-D-GALACTOPYRANOSIDE 4-硝基苯-Α-D-吡喃半乳糖苷;对硝基苯基-Α-D-吡喃半乳糖苷/4-硝基苯基-Α-D-吡喃半乳糖苷/PNPG
英文名称:
4-NITROPHENYL-ALPHA-D-GALACTOPYRANOSIDE
英文同义词:
alpha-d-galactopyranoside,4-nitrophenyl;4-NITROPHENYL-ALPHA-D-GALACTOPYRANOSIDE;PNP-ALPHA-D-GAL;PNP ALPHA-D-GALACTOPYRANOSIDE;PNP-ALPHA-GAL;PNPG;P-NITROPHENYL A-D-GALACTOPYRANOSIDE;P-NITROPHENYL ALPHA-D-GALACTOPYRANOSIDE
相关类别:
其他生化试剂;酶与辅酶;酶类;糖化学分析标准品;糖类（碳水化合物）;生化试剂;酶底物;糖类化合物;氨基酸;Substrates;13C 2H Sugars;Biochemistry;Galactose;Glycosides;Sugars;Enzyme substrates;Carbohydrates Derivatives;植物提取物;substrate;生化试剂-酶类;糖苷水解酶底物;分析试剂-显色剂
沸点
582.2±50.0 °C(Predicted)
密度
1.599±0.06 g/cm3(Predicted)
酸度系数(pKa)
12.55±0.70(Predicted)
InChIKey
IFBHRQDFSNCLOZ-IIRVCBMXSA-N
CAS 数据库
7493-95-0(CAS DataBase Reference)
生物活性
4-Nitrophenyl α-D-galactopyranoside (PNP-alpha-D-Gal) 是一种 4-硝基苯基 (pNP) 糖吡喃糖苷的人工底物，用于检测 α-半乳糖苷酶活性。当 4-Nitrophenyl α-D-galactopyranoside 用作底物时，释放的 pNP 量会显着增加。
体外研究
Using 4-nitorophenol (pNP)-glycopyranosides as pseudosubstrates, the amount of liberated pNP from the 4-Nitrophenyl α-D-galactopyranoside is significantly higher than that from the other pNP-glycopyranosides at pH 4.0 whereas no activity was detected at pH 7.0.
The digestion assays using 4-nitrophenyl (pNP) glycopyranosides as artificial substrates shows that yieldin liberated galactose residues from 4-Nitrophenyl α-D-galactopyranoside mainly at pH 4.0, i.e. the pH level where yield threshold is decreased at most.
用途
α-D-半乳糖苷酶（α-D-Galactosidase）的底物。结合到大肠杆菌乳糖蛋白载体上。α-D-牛乳糖用培养基
