.product-side h2 span {width: 50%;}.product-side h2 span.hover {}Related Productso-PhenanthrolineE-64AprotininPhosphoramidon Disodium SaltBestatinAEBSF.HClMolarity CalculatorDilution Calculator Pepstatin AAspartic proteinases inhibitorCatalog No.A2571SizePriceStockQty10mM (in 1mL DMSO)$50.00In stock 10mg$45.00In stock 50mg$160.00In stock 100mg$280.00In stock Tel: +1-832-696-8203Email: sales@apexbt.comWorldwide Distributors Add to CartBulk InquiryFree samples Check OutSample solution is provided at 25 µL, 10mM.Product Citations1. Ying Long, Xuri Zhang, et al. "Initial events in the breakthrough of the epithelial barrier of the small intestine by Angiostrongylus cantonensis." Arch Biol Sci. 2016;68(2):375-383Related Compound Libraries DiscoveryProbe™ Bioactive Compound LibraryDiscoveryProbe™ Protease Inhibitor LibraryQuality Control Quality Control & MSDS View current batch: 54321 Purity = 98.62% COA (Certificate Of Analysis) HPLC NMR (Nuclear Magnetic Resonance) MSDS (Material Safety Data Sheet) Datasheet Purity = 99.51% COA (Certificate Of Analysis) HPLC NMR (Nuclear Magnetic Resonance) MSDS (Material Safety Data Sheet) Datasheet Purity = 98.06% COA (Certificate Of Analysis) HPLC MS (Mass Spectrometry)MSDS (Material Safety Data Sheet) Datasheet Purity = 98.56% COA (Certificate Of Analysis) HPLC NMR (Nuclear Magnetic Resonance) MSDS (Material Safety Data Sheet) Datasheet Purity = 98.58% COA (Certificate Of Analysis) HPLC NMR (Nuclear Magnetic Resonance) MSDS (Material Safety Data Sheet) Datasheet Chemical structure Related Biological Data ProtocolKinase experiment [1]:Binding assaysThe inhibition of HIV protease, pepsin and cathepsin D activities was assayed using the solid-phase immunoassay at pH 5.6. After induction and harvesting, cells (50 g) were resuspended in 100 ml of 10 mM Tris-HCl buffer, pH 7.5, 1 mM EDTA, 1 mM DTT, 1 mM PMSF and 0.05% Triton X-100, sonicated and centrifuged at 10000g for 20 min, HIV-I protease activity in E. coli extracts was assayed by cleavage of a synthetic heptapeptide substrate and HPLC analysis of proctucts.Cell experiment [2, 3]:Cell linesH9 cells, Bone marrow cellsPreparation methodThe solubility of this compound in DMSO is >34.3mg/mL. General tips for obtaining a higher concentration: Please warm the tube at 37 ℃ for 10 minutes and/or shake it in the ultrasonic bath for a while. Stock solution can be stored below -20℃ for several months.Reacting condition0.1 mM for 2, 4, or 11 days, 37 ℃ApplicationsPepstatin A inhibited the proteolytic processing of the HIV gag precursor in H9 cells. Pepstatin A inhibited the production of infectious HIV in H9 cell cultures. Pepstatin A (15–120 μM) dose-dependently suppressed the formation of TRAP-positive multinuclear cells. Pepstatin A dose-dependently suppressed the RANKL-induced osteoclastogenesis from stromal cell–deprived bone marrow cells in the co-culture system and bone marrow culture. Pepstatin A (15 μM) substantially inhibited the aspartic proteinase activity in bone marrow cells, while complete inhibition was seen at 90 μM.Other notesPlease test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal.References:[1]. Sarubbi E, Seneci P F, Angelastro M R, et al. Peptide aldehydes as inhibitors of HIV protease. FEBS letters, 1993, 319(3): 253-256.[2]. von der Helm K, Gürtler L, Eberle J, et al. Inhibition of HIV replication in cell culture by the specific aspartic protease inhibitor pepstatin A. FEBS letters, 1989, 247(2): 349-352.[3] Yoshida H, Okamoto K, Iwamoto T, et al. Pepstatin A, an aspartic proteinase inhibitor, suppresses RANKL-induced osteoclast differentiation. Journal of biochemistry, 2006, 139(3): 583-590. >Pepstatin A Dilution CalculatorConcentration (start)xVolume (start)=Concentration (final)xVolume (final) femtomolar picomolar nanomolar micromolar millimolar molar nanoliter microliter milliliter liter femtomolar picomolar nanomolar micromolar millimolar molar microliter milliliter liter C1V1C2V2calculatePepstatin A Molarity CalculatorMass=ConcentrationxVolumexMW* picograms nanograms micrograms milligrams grams kilograms femtomolar picomolar nanomolar micromolar millimolar molar nanoliter microliter milliliter liter g/molcalculate Chemical Properties Cas No. 26305-03-3SDF Download SDF Synonyms Pepstatin A,NSC272671,Isoval-Val-Val-Sta-Ala-Sta Chemical Name 3-hydroxy-4-[2-[[3-hydroxy-6-methyl-4-[[3-methyl-2-[[3-methyl-2-(3-methylbutanoylamino)butanoyl]amino]butanoyl]amino]heptanoyl]amino]propanoylamino]-6-methylheptanoic acid Canonical SMILES CC(C)CC(C(CC(=O)O)O)NC(=O)C(C)NC(=O)CC(C(CC(C)C)NC(=O)C(C(C)C)NC(=O)C(C(C)C)NC(=O)CC(C)C)O Formula C34H63N5O9 M.Wt 685.9 Solubility ≥34.3mg/mL in DMSO Storage Store at -20°CPhysical AppearanceA solidShipping ConditionEvaluation sample solution : ship with blue ice.All other available size:ship with RT , or blue ice upon requestGeneral tipsFor obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months. BackgroundPepstatin A is a well-known inhibitor of aspartic proteinases with IC50 values of 15 μM, 2 μM, < 5 nM and < 40 nM for human renin, HIV protease, pepsin and cathepsin D, respectively [1, 2].Pepstatin A is a pentapeptide. It was originally isolated from the microbe. As a most potent renin inhibitor, pepstatinA inhibited porcine renin and human renin at weak acid pH value with IC50 values of 0.32 and 15 μM, respectively. The disadvantage is that, pepstatin Ais hydrophobic. To couple the charged hydrophilic residues to the C-terminal of pepstatinA can increase its solubility. Besides the renin, pepstatin A was also reported to have inhibitory effects on HIV protease and subsequently suppressed the virus replication. In cultured H9 cells, pepstatinA treatment blocked the proteolytic processing of the virus gag precursor and inhibited the production of infectious HIV. Moreover, pepstatin A was found to inhibit osteoclast differentiation due to its inhibitory efficacy of cathepsin D and E [1, 3 and 4].References: 1. Eid M, Evin G, Castro B, et al.New renin inhibitors homologous with pepstatin.Biochem. J, 1981, 197: 465-471.2. Sarubbi E, Seneci P F, Angelastro M R, et al. Peptide aldehydes as inhibitors of HIV protease. FEBS letters, 1993, 319(3): 253-256.3. von der Helm K, Gürtler L, Eberle J, et al. Inhibition of HIV replication in cell culture by the specific aspartic protease inhibitor pepstatin A. FEBS letters, 1989, 247(2): 349-352.4. Yoshida H, Okamoto K, Iwamoto T, et al. Pepstatin A, an aspartic proteinase inhibitor, suppresses RANKL-induced osteoclast differentiation. Journal of biochemistry, 2006, 139(3): 583-590.>