Pepstatin A is a reversible inhibitor of aspartic proteases, Inhibitor for pepsin, renin, cathepsin D, cathepsin G, and other acid proteases
- Presentation: White Powder
- Soluble in ethanol (10 mg/mL with heat - colorless to hazy solution. To remove haziness, add up to 50 μL of glacial acetic acid per mL of ethanol. Insoluble in water.
Pepstatin A can be used in conjunction with E64-d and Leupeptin A to inhibit the degradation of autophagic cargo inside autophagosomes.
Pepstatin A is an inhibitor of acid proteases (aspartyl peptidases). It forms a 1:1 complex with proteases such as pepsin, renin, cathepsin D, bovine chymosin, and protease B (Aspergillus niger). The inhibitor is highly selective and does not inhibit thiol proteases, neutral proteases, or serine proteases. Solubilized γ-secretase and retroviral protease are also inhibited by Pepstatin A. It has been used to characterize proteases from several sources.
It does not inhibit thiol proteases, neutral proteases or serine proteases. Pepstatin forms a 1:1 complex with acid proteases (carboxyl proteases).
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- CAS No.:26305-03-3
- Storage Conditions:Store at -0 °C, protect from light.
- Form:White Powder
- MDL No.:MFCD00060740
- Protein Synonyms:4S)-4-amino-3-hydroxy-6-methylheptanoic acid]|4[R*[R*(R*)]]]]-N- (3-methyl-1-oxobutyl)-L-valyl-N-[4-[[2-[[1-(2-carboxy-1-hydroxyethyl)-3- methylbutyl] amino]-1-methyl-2-oxoethyl]amino]-2-hydroxy-1-(2-methylpropyl)-4-oxobutyl]-L-valinamide|Isovaleryl-L-valyl-L-valyl-[(3S|[1S-[1R*|4S)-4-amino-3-hydroxy-6- methylheptanoyl]-L- alanyl [3S|2R*|N-isovaleryl-L-valyl-L-valyl-3-hydroxy-6-methyl-g-aminoheptanoyl-L- alanyl-3-hydroxy-6-methyl-g-aminoheptanoic acid
- Protein/Peptide Name:Pepstatin A
- Molecular Formula:C₃₄H₆₃N₅O₉