Pepstatin A is a competitive, reversible aspartic protease inhibitor which inhibits proteases such as pepsin, chymosin, renin, HIV proteases, and cathepsins D and E. Peptstatin A is highly selective and is often used in a mixture with other enzyme inhibitors. In vitro studies have shown pepstatin A is the only aspartic acid inhibitor that exhibits inhibitory effects on HIV proteases.

GoldBio"s Immobilized Pepstatin Agarose Resin can be used for the purification of cathepsins, pepsin, bacterial aspartic proteases, HIV proteases and other molecules that bind pepstatin. The Pepstatin is immobilized on 6% agarose resin that is covalently coupled to pepstatin through a diaminodipropylamine (DADPA) activated spacer arm and has a binding capacity of 1-2 mg pepsin per millimeter of settled resin.

Pepstatin Agarose is supplied as a 50% slurry in 0.5M NaCl and 0.02% thimerosal.

Activity: 1-2 mg pepsin/ml of resin

Resin: 6% Beaded Agarose

Shipping/Handling: Shipped at ambienttemperature. Upon receipt, store at 4°C, do NOT freeze.

★活体技术荧光检测荧光蛋白标记适用于标记细胞、病毒、基因等，通常使用的是 GFP、EGFP、RFP（DsRed）等；荧光染料标记适用于标记抗体、多肽、小分子药物等；常用的有 Cy3、Cy5、Cy5.5 及 Cy7量子点标记（新的标记方法）适用于标记肿瘤，主要应用在活细胞实时动态荧光观察与成像；量子点（quantum dot) 是一种能发射荧光的半导体纳米微晶体，外观恰似一极小的点状物。量子点荧光比有机荧光染料的发射光强的 20 倍，稳定性强 100 倍以上，具有荧光发光光谱较窄、量子产率高、不易漂白、激发光谱宽、颜色可调，并且光化学稳定性高，不易分解等诸多优点。