ISDA

Deposition Date 2009-05-07

Release Date 2009-07-07

Last Version Date 2024-05-22

Entry Detail

PDB ID:

3HDZ

Keywords:

HYDROLASE

Title:

Identification, Synthesis, and SAR of Amino Substituted Pyrido[3,2b]pryaziones as Potent and Selective PDE5 Inhibitors

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Spodoptera frugiperda

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.80 Å

R-Value Free:

0.21

R-Value Work:

0.17

R-Value Observed:

0.18

Space Group:

C 1 2 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:cGMP-specific 3',5'-cyclic phosphodiesterase,cAMP-specific 3',5'-cyclic phosphodiesterase 4A,cGMP-specific 3',5'-cyclic phosphodiesterase
Gene (Uniprot):PDE5A, PDE4A
Mutations:Residues 658-682 from PDE4
Chain IDs:A
Chain Length:324
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:O76074,P27815 Pfam ID:PF00233 EC:3.1.4.35

Ligand Molecules

PD6

Primary Citation

Identification, synthesis and SAR of amino substituted pyrido[3,2b]pyrazinones as potent and selective PDE5 inhibitors.

Owen, D.R, Walker, J.K, Jon Jacobsen, E, Freskos, J.N, Hughes, R.O, Brown, D.L, Bell, A.S, Brown, D.G, Phillips, C, Mischke, B.V, Molyneaux, J.M, Fobian, Y.M, Heasley, S.E, Moon, J.B, Stallings, W.C, Joseph Rogier, D, Fox, D.N, Palmer, M.J, Ringer, T, Rodriquez-Lens, M, Cubbage, J.W, Blevis-Bal, R.M, Benson, A.G, Acker, B.A, Maddux, T.M, Tollefson, M.B, Bond, B.R, Macinnes, A, Yu, Y.Show

Bioorg.Med.Chem.Lett. 19 4088 4091 (2009)

PMID: 19540112 DOI: 10.1016/j.bmcl.2009.06.012

Abstact

A new class of potent and selective PDE5 inhibitors is disclosed. Guided by X-ray crystallographic data, optimization of an HTS lead led to the discovery of a series of 2-aryl, (N8)-alkyl substituted-6-aminosubstituted pyrido[3,2b]pyrazinones which show potent inhibition of the PDE5 enzyme. Synthetic details and some structure-activity relationships are also presented.

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Protein

Chemical

Disease

Primary Citation of related structures