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524718 Sigma-Aldrich

Phosphodiesterase Inhibitor Set I - Calbiochem

The Phosphodiesterase Inhibitor Set I controls the activity of Phosphodiesterase. This small molecule/inhibitor is primarily used for Cell Signaling applications.

Synonym: PDE Inhibitor Set



Related Categories Cell Biology, Cell Signaling and Neuroscience, Cyclic Nucleotide Metabolism, G Proteins and Cyclic Nucleotides, Phosphodiesterase Inhibitors More...
Quality Level   100
form   solid
mfr. no.   Calbiochem®
storage condition   OK to freeze
storage conditions   +2C to +8C
shipped in   ambient


General description

A convenient set of inhibitors that are selective for PDE types I, III, IV, and V. Contains 10 mg of 8-Methoxymethyl-3-isobutyl-1-methylxanthine (Cat. No. 454202), a Ca2+/CaM-dependent PDE (PDE I) inhibitor; 1 mg of 4-{[3′,4′-(Methylenedioxy)benzyl]amino}-6-methoxyquinazoline (Cat. No. 475250), a cGMP-specific PDE (PDE V) inhibitor; 5 mg of Rolipram (Cat. No. 557330), a cAMP-specific PDE (PDE IV) inhibitor; and 10 mg of Trequinsin, Hydrochloride (Cat. No. 382425), a cGMP-inhibited PDE (PDE III) inhibitor. Supplied with data sheet.

Phosphodiesterases (PDEs) play an important role in the regulation of cAMP and cGMP levels in the cell. At least five PDE isozymes have been characterized that are differentially expressed and regulated in different cell types: Ca2+-calmodulin-dependent (PDE I); cGMP-stimulated (PDE II); cGMP-inhibited (PDE III); cAMP-specific (PDE IV); cGMP-specific (PDE V). These isozymes exhibit significant homology in their catalytic domain. The cyclic nucleotides are important regulators of many different cellular processes. They are involved in inflammation, asthma, and cardiovascular complications. Hence, specific inhibitors of the PDE isozymes have a potential for use as therapeutic agents. The Phosphodiesterase Inhibitor Set I contains the following inhibitors that are selective for PDE types l, III, IV, and V:

• 8-Methoxymethyl-3-isobutyl-1-methylxanthine(8-Methoxymethyl-IBMX) (Cat. No. 454202), 10 mg

• 4-{[3′,4′-(Methylenedioxy) benzyl]amino}-6-methoxyquinazoline (Cat. No. 475250), 1 mg

• Rolipram (Cat. No. 557330), 5 mg

• Trequinsin, Hydrochloride (Cat. No. 382425), 10 mg


1 set in Glass bottle

Biochem/physiol Actions

Primary Target


Toxicity: Multiple Toxicity Values, refer to MSDS (O)


Following reconstitution of each inhibitor, aliquot and freeze (-20°C). Stock solutions are stable for up to 1 month at -20°C.

Other Notes

See properties table for specific solvent and recommended stock concentration.

Takase, Y., et al. 1994. J. Med. Chem.37, 2106.
Underwood, D.C., et al. 1994. J. Pharmacol. Exp. Ther.270, 250.
Wells, J.N. and Miller, J.R. 1988. Methods Enzymol.159, 489.
Ruppert, D. and Weithmann, K.U. 1982. Life Sciences31, 2037.

Safety & Documentation

Safety Information

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