Phosphodiesterases, 3',5'-cyclic nucleotide (PDEs) (version 2019.4) in the IUPHAR/BPS Guide to Pharmacology Database
3',5'-Cyclic nucleotide phosphodiesterases (PDEs, 3',5'-cyclic-nucleotide 5'-nucleotidohydrolase), E.C. 18.104.22.168, catalyse the hydrolysis of a 3',5'-cyclic nucleotide (usually cyclic AMP or cyclic GMP). isobutylmethylxanthine is a nonselective inhibitor with an IC50 value in the millimolar range for all isoforms except PDE 8A, 8B and 9A. A 2',3'-cyclic nucleotide 3'-phosphodiesterase (E.C. 22.214.171.124 CNPase) activity is associated with myelin formation in the development of the CNS.
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