3UUO

The discovery of potent, selectivity, and orally bioavailable pyrozoloquinolines as PDE10 inhibitors for the treatment of Schizophrenia

PDB DOI: https://doi.org/10.2210/pdb3UUO/pdb

Classification: HYDROLASE/HYDROLASE INHIBITOR
Organism(s): Homo sapiens
Expression System: Spodoptera frugiperda
Mutation(s): No

Deposited: 2011-11-28 Released: 2012-01-25
Deposition Author(s): Ho, G.D., Yang, S., Smotryski, J., Bercovici, A., Nechuta, T., Smith, E.M., McElroy, W., Tan, Z., Tulshian, D., Mckittrick, B., Greenlee, W.J., Hruza, A., Xiao, L., Rindgen, D., Guzzi, M., Zhang, X., Bleickardt, C., Mullins, D., Hodgson, R.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.11 Å
R-Value Free:
0.227 (Depositor), 0.230 (DCC)
R-Value Work:
0.195 (Depositor), 0.200 (DCC)
R-Value Observed:
0.197 (Depositor)

wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

This is version 1.1 of the entry. See complete history.

Literature

The discovery of potent, selective, and orally active pyrazoloquinolines as PDE10A inhibitors for the treatment of Schizophrenia.

Ho, G.D., Yang, S.W., Smotryski, J., Bercovici, A., Nechuta, T., Smith, E.M., McElroy, W., Tan, Z., Tulshian, D., McKittrick, B., Greenlee, W.J., Hruza, A., Xiao, L., Rindgen, D., Mullins, D., Guzzi, M., Zhang, X., Bleickardt, C., Hodgson, R.

(2012) Bioorg Med Chem Lett 22: 1019-1022

PubMed: 22222034 Search on PubMed
DOI: https://doi.org/10.1016/j.bmcl.2011.11.127
Primary Citation of Related Structures:
3UUO

PubMed Abstract:
High-throughput screening identified a series of pyrazoloquinolines as PDE10A inhibitors. The SAR development led to the discovery of compound 27 as a potent, selective, and orally active PDE10A inhibitor. Compound 27 inhibits MK-801 induced hyperactivity at 3mg/kg with an ED(50) of 4mg/kg and displays a ∼6-fold separation between the ED(50) for inhibition of MK-801 induced hyperactivity and hypolocomotion in rats.

Organizational Affiliation

Department of Medicinal Chemistry, Merck Research Laboratories, Kenilworth, NJ 07033, USA. ginny.ho@merck.com; ginny.ho@spcorp.com

Macromolecule Content

Total Structure Weight: 79.01 kDa
Atom Count: 5,199
Modelled Residue Count: 620
Deposited Residue Count: 674
Unique protein chains: 1

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
cAMP and cAMP-inhibited cGMP 3',5'-cyclic phosphodiesterase 10A	A, B	337	Homo sapiens	Mutation(s): 0 Gene Names: PDE10A EC: 3.1.4.17 (PDB Primary Data), 3.1.4.35 (PDB Primary Data)
UniProt & NIH Common Fund Data Resources
Find proteins for Q9Y233 (Homo sapiens) Explore Q9Y233 Go to UniProtKB: Q9Y233
PHAROS: Q9Y233 GTEx: ENSG00000112541
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	Q9Y233
Sequence Annotations Expand
Reference Sequence LOADING

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
0CV Query on 0CV Download Ideal Coordinates CCD File SDF format, chain C [auth A] SDF format, chain G [auth B] MOL2 format, chain C [auth A] MOL2 format, chain G [auth B] mmCIF format, chain C [auth A] mmCIF format, chain G [auth B]	C [auth A], G [auth B]	6-methoxy-3,8-dimethyl-4-(piperazin-1-yl)-1H-pyrazolo[3,4-b]quinoline C₁₇ H₂₁ N₅ O LRBQTFPUUPFJQW-UHFFFAOYSA-N		Interactions Focus chain C [auth A] Focus chain G [auth B] Interactions & Density Focus chain C [auth A] Focus chain G [auth B]
PO4 Query on PO4 Download Ideal Coordinates CCD File SDF format, chain F [auth A] SDF format, chain J [auth B] MOL2 format, chain F [auth A] MOL2 format, chain J [auth B] mmCIF format, chain F [auth A] mmCIF format, chain J [auth B]	F [auth A], J [auth B]	PHOSPHATE ION O₄ P NBIIXXVUZAFLBC-UHFFFAOYSA-K		Interactions Focus chain F [auth A] Focus chain J [auth B] Interactions & Density Focus chain F [auth A] Focus chain J [auth B]
ZN Query on ZN Download Ideal Coordinates CCD File SDF format, chain E [auth A] SDF format, chain I [auth B] MOL2 format, chain E [auth A] MOL2 format, chain I [auth B] mmCIF format, chain E [auth A] mmCIF format, chain I [auth B]	E [auth A], I [auth B]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N		Interactions Focus chain E [auth A] Focus chain I [auth B] Interactions & Density Focus chain E [auth A] Focus chain I [auth B]
MG Query on MG Download Ideal Coordinates CCD File SDF format, chain D [auth A] SDF format, chain H [auth B] MOL2 format, chain D [auth A] MOL2 format, chain H [auth B] mmCIF format, chain D [auth A] mmCIF format, chain H [auth B]	D [auth A], H [auth B]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N		Interactions Focus chain D [auth A] Focus chain H [auth B] Interactions & Density Focus chain D [auth A] Focus chain H [auth B]