ISDA: 6K9U

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Deposition Date 2019-06-18

Release Date 2019-07-17

Last Version Date 2024-03-27

Entry Detail

PDB ID:

6K9U

Keywords:

HYDROLASE

Title:

Discovery of Pyrazolo[1,5-a]pyrimidine Derivative as a Highly Selective PDE10A Inhibitor

Biological Source:

Source Organism(s):

Rattus norvegicus (Taxon ID: 10116)

Expression System(s):

Spodoptera frugiperda

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.35 Å

R-Value Free:

0.21

R-Value Work:

0.17

R-Value Observed:

0.17

Space Group:

H 3

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:cAMP and cAMP-inhibited cGMP 3',5'-cyclic phosphodiesterase 10A
Gene (Uniprot):Pde10a
Chain IDs:A
Chain Length:311
Number of Molecules:1
Biological Source:Rattus norvegicus

UniProt ID:Q9QYJ6 Pfam ID:PF00233

Ligand Molecules

D4L

SO4

Primary Citation

Discovery of a pyrazolo[1,5-a]pyrimidine derivative (MT-3014) as a highly selective PDE10A inhibitor via core structure transformation from the stilbene moiety.

Koizumi, Y, Tanaka, Y, Matsumura, T, Kadoh, Y, Miyoshi, H, Hongu, M, Takedomi, K, Kotera, J, Sasaki, T, Taniguchi, H, Watanabe, Y, Takakuwa, M, Kojima, K, Baba, N, Nakamura, I, Kawanishi, E.Show

Bioorg.Med.Chem. 27 3440 3450 (2019)

PMID: 31235264 DOI: 10.1016/j.bmc.2019.06.021

Abstact

We have developed a new class of PDE10A inhibitor, a pyrazolo[1,5-a]pyrimidine derivative MT-3014 (1). A previous compound introduced was deprioritized due to concerns for E/Z-isomerization and glutathione-adduct formation at the core stilbene structure. We discovered pyrazolo [1,5-a] pyrimidine as a new lead scaffold by structure-based drug design utilizing a co-crystal structure with PDE10A. The lead compound was optimized for in vitro activity, solubility, and selectivity against human ether-á-go-go related gene cardiac channel binding. We observed that MT-3014 shows excellent efficacy in rat conditioned avoidance response test and suitable pharmacokinetic properties in rats, especially high brain penetration.

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Primary Citation of related structures

Abstact

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