- 中文名称
胃蛋白酶/胃蛋白酶原活性测定试剂盒（荧光法）
- 英文名字
- Pepsin/Pepsinogen Activity Assay Kit (Fluorometric)
- 供应商
- Biovision
- 产品货号
- K446-100
- 产品报价
- ￥询价/100assays
- 产品说明书
- 点击查看
- 购买方式
- 银行转账、电汇、支票、现金，在线支付宝及网银支付，或直接与我们电话联系400-6800-868.
- 产品新闻
- 背景资料
- 待更新
- 产品描述
- Pepsin (EC 3.4.23.1) is a peptidase A1 family aspartic protease that serves as a primary digestive enzyme in the mammalian stomach. Pepsin is synthesized in the chief cells of the gastric mucosa as the inactive pro-enzyme pepsinogen, which contains a 44 amino acid autoinhibitory domain. The proenzyme is packaged into granules and stored inside the gastric mucosal cells. When food is consumed, neuronal signals traveling along the vagus nerve trigger secretion of HCl and pepsinogen into the stomach. In the highly acidic environment of the stomach, pepsinogen unfolds and undergoes autocatalytic cleavage, forming the active protease pepsin. Infection by the bacterium H. pylori induces hypersecretion of both stomach acid and pepsin, contributing to the formation of gastric and duodenal ulcers. In addition, excessive amounts of pepsin can play a role in the degradation of the esophageal and laryngeal tissue observed in chronic gastroesophageal reflux disease. While the majority of pepsinogen is expressed in the gastric mucosa, a small amount of the inactive enzyme is also released into the blood. Serum pepsinogen levels correlate with functional changes to gastric mucosa and are often measured for the screening of gastric cancer and chronic H. pylori-induced gastritis. BioVision’s Pepsin Assay Kit is a homogenous assay that allows for quantification of pepsin activity in gastric tissue and various biological fluids. The assay utilizes a synthetic peptide substrate bearing both a fluorophore and a fluorescence quencher. Upon cleavage by pepsin, the fluorophore-bearing peptide fragment is unquenched to produce a bright fluorescent signal (Ex/Em = 328/418 nm). Lysosomal aspartic proteases in the peptidase A1 family (Cathepsin D and E) do not interfere with the assay. The assay is rapid, simple to perform and is vastly more sensitive than the classical hemoglobin degradation assay, with a detection limit of 500 μU pepsin activity per well
- 产品特点
- • Simple procedure; takes ~ 1-2 hours based on pepsin levels
• Fast and convenient
- 保存建议
- -20
- 其他
- BioVision的公司总部在美丽的旧金山湾地区，它是全球生命科学公司的领导者.BioVision在开发和研究细胞凋亡检测分析、代谢检测方面具有卓越的影响力.包括检测各种检测分析试剂盒、相关特色抗体、重组蛋白及细胞因子和酶等多种产品，以及其他创新的研究工具.其产品覆盖细胞凋亡研究、能量代谢、细胞/组织蛋白提取、氧化应激与损伤、代谢与肥胖症、细胞增殖与毒性、信号转导、干细胞研究等领域.作为多家知名品牌的中国总代理以及中国区域代理，艾美捷与BioVision一起为研究者们提供最好、最新的细胞生物学研究工具而不断扩大产品及服务质量.
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- 注意
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该页面的中文产品信息的翻译，仅供参考。准确的产品信息请以厂家的英文说明书为准。下单前，请浏览说明书确认。
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