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Pepstatin A, Penetratin-Calbiochem
| 产品编号： | 4061730 |
| 规格： | A Pepstatin A that is ~75% less potent against Cathespins D/E than PepA in cell-free assays. |
| 包装规格： | 1 MG |
| 产品类别： | 进口试剂 |
| 品牌： | Sigma-Aldrich |
| 优惠价： | 立即咨询 |
产品别名
Pepstatin A, Penetratin-Calbiochem
PepA-RQIKIWFQNRRMKWKK-OH, PepA-Antp43-58
基本信息
| Empirical Formula【经验(实验)分子式】 | C138H229N39O28S |
| Molecular weight | 2914.60 |
| General description【一般描述】 | A Pepstatin A (PepA; Cat. No. 516481) penetratin (pAntp43-58) conjugate (PepA-P) that is ~75% less potent against Cathespins D/E (IC50 = 920 nM) than PepA in cell-free assays, presumably due to its decreased solubility. However, with its enhanced permeability, PepA-P is much more active than PepA in inhibiting cellular aspartic protease activity in MCF7 (94.1% vs. 54.6% inhibition wtih 10 µM respective compound), Boleths, and Dendritic cultures. PepA-P, but not PepA, effectively interferes with antigen processing by primary APCs and the subsequent activation of antigen-specific memory T cells. |
| Warning【警告】 | Toxicity: Standard Handling (A) |
| Sequence【序列】 | PepA-Arg-Gln-Ile-Lys-Ile-Trp-Phe-Gln-Asn-Arg-Arg-Met-Lys-Trp-Lys-Lys-CO₂H |
| Physical form【外形】 | Supplied as a trifluoroacetate salt. |
| Reconstitution【重悬】 | Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C. |
| Other Notes【其他说明】 | Zaidi, N., et al. 2007. Biochem. Biophys. Res. Commun.364, 243. |
| Legal Information【法律信息】 | CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany |
产品性质
| Quality Level【质量水平】 | 100 |
| Assay【测定】 | ≥97% (HPLC) |
| form【形式】 | lyophilized solid |
| manufacturer/tradename | Calbiochem® |
| storage condition【储存条件】 | OK to freeze desiccated (hygroscopic) protect from light |
| color【颜色】 | white |
| solubility【溶解性】 | water: 1 mg/mL |
| shipped in【运输】 | wet ice |
| storage temp.【储存温度】 | −20℃ |
| packaging【包装】 | 1 mg in Plastic ampoule Packaged under inert gas |
安全信息
| Storage Class Code【储存分类代码】 | 11 - Combustible Solids |
| WGK | WGK 1 |
