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BioReagent 级 ,适用于对基线干扰要求严格的色谱和分析工作流程。
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在色谱分析、有机合成和交叉偶联反应领域已被 0 篇同行评审文献引用。
α-半乳糖苷酶(α-GAL, EC 3.2.1.22)广泛存在于动物、植物、微生物和培养细胞中,能专一地催化α-半乳糖苷键的水解,主要参与棉子糖、水苏糖、蜜二糖和半乳甘露聚糖等半乳糖苷的降解。α-GAL 对于植物种子的萌发至关重要,种子萌发初期,其催化产生的 D-半乳糖通过糖酵解途径迅速转化和消耗,为种子的萌发提供最初的能量来源,后期则主要参与细胞壁储藏多糖水解。α-GAL 能够分解对-硝基苯-α-D-吡喃半乳糖苷生成对-硝基苯酚,后者在 400 nm 有最大吸收峰,通过测定吸光值升高速率来计算α-GAL 的活性。
α-Galactosidase (α-GAL, EC 3.2.1.22) is widely present in animals, plants, microorganisms, and cultured cells. It specifically catalyzes the hydrolysis of α-galactosidic bonds and is primarily involved in the degradation of galactosides such as raffinose, stachyose, melibiose, and galactomannan. α-GAL is crucial for seed germination in plants. During the early stages of germination, the D-galactose produced by its catalysis is rapidly converted and consumed via the glycolytic pathway, providing the initial energy source for germination. In later stages, it mainly participates in the hydrolysis of cell wall storage polysaccharides. α-GAL catalyzes the hydrolysis of p-nitrophenyl-α-D-galactopyranoside to generate p-nitrophenol, which exhibits a maximum absorption peak at 400 nm. The activity of α-GAL is calculated by measuring the rate of increase in absorbance at this wavelength.