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ActiBioPure™,EnzymoPure™,生物活性,高性能 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 5 篇同行评审文献引用。
磷脂酶A2(phospholipase A2, PLA2)是一种能催化磷脂甘油分子上二位酰基的水解酶,亦是花生四烯酸(AA)、前列腺素及血小板活化因子(PAF)等生物活性物质生成的限速酶,所产生的脂质介质在炎症和组织损伤时膜通道的活化、信息传递、血流动力学及病理生理过程中,以及在调节细胞内外代谢中起关键性作用。在急性胰腺炎、脓毒休克、创伤及多脏器功能衰竭(MSOF)患者血清中PLA2活性升高。在多发性创伤时,PLA2活性变化或许是导致MSOF组织损伤过程中的早期信号参数。
产品特性
1. 磷脂酶A2 是一种富含二硫键的小分子蛋白,有124 个残基,是一种钙依赖性酶。
2. 与单体底物相比,对聚集的底物具有较高的催化活性。
3. 首选底物为磷脂酰胆碱、磷脂酰乙醇胺及其缩醛磷脂类似物。
稳定性
稳定于大范围pH值环境(60℃,10min失活,pH8.0)。对温度、PH和导致蛋白质变性的各种因素均非常敏感,极易受到外界条件的影响而改变其本身的构象和性质。
应用
用于油脂食品的分解等,也可用于分解磷脂及其部分分解物。还可用于蛋黄改性,制色拉酱,色拉油。
注意事项
1. 不慎与眼睛接触后,请立即用大量清水冲洗并征求医生意见;
2. 为了您的安全和健康,请穿实验服并戴一次性手套操作。
Phospholipase A2 (PLA2) is a hydrolytic enzyme that catalyzes the di acyl group on phospholipid glycerol molecules. It is also a rate limiting enzyme generated by bioactive substances such as arachidonic acid (AA), prostaglandins, and platelet activating factor (PAF). The lipid mediators produced play a crucial role in the activation of membrane channels, information transmission, hemodynamics, and pathophysiological processes during inflammation and tissue damage, as well as in regulating intracellular andextracellular metabolism. PLA2 activity is elevated in the serum of patients with acute pancreatitis, septic shock, trauma, and multiple organ failure (MSOF). In multiple trauma, changes in PLA2 activity may be an early signaling parameter leading to tissue damage in MSOF.
PROPERTIES
1. Phospholipase A2 is a small molecule protein rich in disulfide bonds, with 124 residues, and is a calcium dependent enzyme.
2. Compared with monomer substrates, it exhibits higher catalytic activity towards aggregated substrates.
3. The preferred substrates are phosphatidylcholine, phosphatidylethanolamine, and their acetal phospholipid analogues.
STABILITY
Stable in a wide pH environment (60 °C, inactivated for 10 minutes, pH 8.0). It is highly sensitive to temperature, pH, and various factors that cause protein denaturation, and is highly susceptible to external conditions that can alter its conformation andproperties.
APPLICATION
Used for the decomposition of oily foods, as well as for the decomposition of phospholipids and their partial decomposition products. It can also be used for egg yolk modification, making salad sauce, and salad oil.
ATTENTION
1. After accidental contact with eyes, immediately rinse with plenty of water and seek medical advice;
2. For your safety and health, please wear a lab coat and disposable gloves.
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| 批号(Lot Number) | 证书类型 | 货号 |
|---|---|---|
| 分析证书 | P1501339 | |
| 分析证书 | P1501339 | |
| 分析证书 | P1501339 | |
| 分析证书 | P1501339 | |
| 分析证书 | P1501339 | |
| 分析证书 | P1501339 | |
| 分析证书 | P1501339 |
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