The domain within your query sequence starts at position 121 and ends at position 189; the E-value for the PDEase_I domain shown below is 2.6e-23.



PFAM accession number:PF00233
Interpro abstract (IPR002073):

The cyclic nucleotide phosphodiesterases (PDE) comprise a group of enzymes that degrade the phosphodiester bond in the second messenger molecules cAMP and cGMP. They are divided into 11 families. They regulate the localisation, duration and amplitude of cyclic nucleotide signalling within subcellular domains. PDEs are therefore important for signal transduction.

All of these forms contain a catalytic domain of approximately 270 amino acids at the carboxyl terminus. Regulatory domains that vary widely among the PDEase subfamilies flank the catalytic core and include regions that autoinhibit the catalytic domains as well as targeting sequences that control subcellular localization [ (PUBMED:15260978) ].

PDEase catalytic domains adopt a compact alpha-helical structure consisting of 16 alpha-helices that can be divided into three subdomains. The active site of PDEases is a deep pocket formed by the tree subdomains and can be divided into two major subpockets for binding of divalent metals and substrate/inhibitors, respectively. The active site of all PDEase domains contains two divalent metal ions: zinc and probably magnesium [ (PUBMED:15260978) (PUBMED:10846163) (PUBMED:17305581) ].

GO process:signal transduction (GO:0007165)
GO function:3',5'-cyclic-nucleotide phosphodiesterase activity (GO:0004114)

This is a PFAM domain. For full annotation and more information, please see the PFAM entry PDEase_I