ISDA

Deposition Date 2017-02-01

Release Date 2017-04-26

Last Version Date 2023-10-04

Entry Detail

PDB ID:

5UOY

Keywords:

HYDROLASE/HYDROLASE INHIBITOR

Title:

Crystal structure of human PDE1B catalytic domain in complex with inhibitor 16j (6-(4-Methoxybenzyl)-9-((tetrahydro-2H-pyran-4-yl)methyl)-8,9,10,11-tetrahydropyrido[4',3':4,5]thieno[3,2-e][1,2,4]triazolo[1,5-c]pyrimidin-5(6H)-one)

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.82 Å

R-Value Free:

0.22

R-Value Work:

0.18

R-Value Observed:

0.19

Space Group:

P 43 21 2

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Calcium/calmodulin-dependent 3',5'-cyclic nucleotide phosphodiesterase 1B
Gene (Uniprot):PDE1B
Chain IDs:A
Chain Length:361
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:Q01064 Pfam ID:PF00233 EC:3.1.4.17

Ligand Molecules

8HM

Primary Citation

Discovery of Selective Phosphodiesterase 1 Inhibitors with Memory Enhancing Properties.

Dyck, B, Branstetter, B, Gharbaoui, T, Hudson, A.R, Breitenbucher, J.G, Gomez, L, Botrous, I, Marrone, T, Barido, R, Allerston, C.K, Cedervall, E.P, Xu, R, Sridhar, V, Barker, R, Aertgeerts, K, Schmelzer, K, Neul, D, Lee, D, Massari, M.E, Andersen, C.B, Sebring, K, Zhou, X, Petroski, R, Limberis, J, Augustin, M, Chun, L.E, Edwards, T.E, Peters, M, Tabatabaei, A.Show

J. Med. Chem. 60 3472 3483 (2017)

PMID: 28406621 DOI: 10.1021/acs.jmedchem.7b00302

Abstact

A series of potent thienotriazolopyrimidinone-based PDE1 inhibitors was discovered. X-ray crystal structures of example compounds from this series in complex with the catalytic domain of PDE1B and PDE10A were determined, allowing optimization of PDE1B potency and PDE selectivity. Reduction of hERG affinity led to greater than a 3000-fold selectivity for PDE1B over hERG. 6-(4-Methoxybenzyl)-9-((tetrahydro-2H-pyran-4-yl)methyl)-8,9,10,11-tetrahydropyrido[4',3':4,5]thieno[3,2-e][1,2,4]triazolo[1,5-c]pyrimidin-5(6H)-one was identified as an orally bioavailable and brain penetrating PDE1B enzyme inhibitor with potent memory-enhancing effects in a rat model of object recognition memory.

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Primary Citation of related structures