产品说明
一般描述
An internally quenched fluorogenic 11-mer peptide that acts as a sensitive and selective substrate for cathepsins D and E (kcat/Km = 15.6 µM-1s-1 and 10.9 µM-1s-1 for rat gastric cathepsin D and human erythrocyte cathepsin E, respectively), but not cathepsins B, H, or L . Cleavage occurs between Phe-Phe residues and results in enhanced fluorescence. A useful tool for inhibitors screening or for the determination of cathepsins D and E activities in crude extracts of various tissues and cell lysates.
An internally quenched fluorogenic 11 amino acid peptide that acts as a sensitive and selective substrate for cathepsins D and E (kcat/Km = 15.6 µM-1s-1 and 10.9 µM-1s-1 for rat gastric cathepsin D and human erythrocyte cathepsin E, respectively). Does not act as a substrate for cathepsins B, H, or L. Cleavage occurs at the Phe-Phe amide bond resulting in enhanced fluorescence. Useful for screening cathepsin D and E inhibitors and for determining cathepsin D and E activity in tissue and cell extracts. Excitation max: ~328 nm; emission max: ~393 nm.
包装
1 mg in Plastic ampoule
Packaged under inert gas
生化/生理作用
Product does not compete with ATP.
Reversible: no
Cell permeable: no
Primary Target
Substrate for cathepsins D and E
kcat/Km = 15.6 µM⁻¹ sec⁻¹ and 10.9 µM⁻¹ sec⁻¹ for rat gastric cathepsin D and human erythrocyte cathepsin E, respectively
警告
Toxicity: Standard Handling (A)
序列
MOCAc-Gly-Lys-Pro-Ile-Leu-Phe~Phe-Arg-Leu-Lys(Dnp)-D-Arg-NH₂
MOCAc = (7-Methoxycoumarin-4-yl)acetyl
外形
Supplied as a trifluoroacetate salt.
重悬
Following reconstitution aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.
其他说明
Yasuda, Y., et al. 1999. J. Biochem.126, 260.
Yasuda, Y., et al. 1999. J. Biochem.125, 1137.
法律信息
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
基本信息
经验(实验)分子式 | C85H122N22O19 |
分子量 | 1756.01 |
产品性质
质量水平 | 100 |
测定 | ≥97% (HPLC) |
形式 | lyophilized solid |
manufacturer/tradename | Calbiochem® |
储存条件 | OK to freeze desiccated (hygroscopic) protect from light |
颜色 | yellow |
溶解性 | DMSO: 5 mg/mL |
荧光 | λex ~328 nm λem ~393 nm |
运输 | ambient |
储存温度 | 2-8℃ |
Sigma-Aldrich