- 商品介绍
- 规格参数
- 包装参数
General description
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.
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.
Biochem/physiol Actions
Cell permeable: no
Primary Target
Substrate for cathepsins D and E
Product does not compete with ATP.
Reversible: no
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
Packaging
Packaged under inert gas
Physical form
Supplied as a trifluoroacetate salt.
Preparation Note
Following reconstitution aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.
Other Notes
MOCAc-Gly-Lys-Pro-Ile-Leu-Phe~Phe-Arg-Leu-Lys(Dnp)-D-Arg-NH₂
MOCAc = (7-Methoxycoumarin-4-yl)acetyl
Yasuda, Y., et al. 1999. J. Biochem.126, 260.
Yasuda, Y., et al. 1999. J. Biochem.125, 1137.
Legal Information
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
Disclaimer
Toxicity: Standard Handling (A)
| Quality Segment | 100 |
| assay | ≥97% (HPLC) |
| form | lyophilized solid |
| manufacturer/tradename | Calbiochem® |
| storage condition | OK to freeze,desiccated (hygroscopic),protect from light |
| color | yellow |
| solubility | DMSO: 5 mg/mL |
| fluorescence | λex ~328 nm,λem ~393 nm |
| shipped in | ambient |
| storage temp. | 2-8°C |
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¥ 2814.26
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¥ 1683.78
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¥ 3109.49
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¥ 5887.85
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¥ 3442.25
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¥ 5725.45
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¥ 4404.38
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