4DDL

PDE10a Crystal Structure Complexed with Novel Inhibitor

PDB DOI: https://doi.org/10.2210/pdb4DDL/pdb

Classification: Hydrolase/Hydrolase Inhibitor
Organism(s): Homo sapiens
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2012-01-18 Released: 2012-03-21
Deposition Author(s): Chmait, S., Jordan, S., Zhang, J.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.07 Å
R-Value Free: 0.195
R-Value Work: 0.186
R-Value Observed: 0.186

wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

This is version 1.0 of the entry. See complete history.

Literature

Discovery of potent, selective, and metabolically stable 4-(pyridin-3-yl)cinnolines as novel phosphodiesterase 10A (PDE10A) inhibitors.

Hu, E., Kunz, R.K., Rumfelt, S., Chen, N., Burli, R., Li, C., Andrews, K.L., Zhang, J., Chmait, S., Kogan, J., Lindstrom, M., Hitchcock, S.A., Treanor, J.

(2012) Bioorg Med Chem Lett 22: 2262-2265

PubMed: 22365755 Search on PubMed
DOI: https://doi.org/10.1016/j.bmcl.2012.01.086
Primary Citation of Related Structures:
4DDL

PubMed Abstract:
We report the discovery of 6,7-dimethoxy-4-(pyridin-3-yl)cinnolines as novel inhibitors of phosphodiesterase 10A (PDE10A). Systematic examination and analyses of structure-activity-relationships resulted in single digit nM potency against PDE10A. X-ray co-crystal structure revealed the mode of binding in the enzyme's catalytic domain and the source of selectivity against other PDEs. High in vivo clearance in rats was addressed with the help of metabolite identification (ID) studies. These findings combined resulted in compound 39, a promising potent inhibitor of PDE10A with good in vivo metabolic stability in rats and efficacy in a rodent behavioral model.

Organizational Affiliation

Department of Small Molecule Chemistry, Amgen Inc., Thousand Oaks, CA 91320-1799, USA.

Macromolecule Content

Total Structure Weight: 80.33 kDa
Atom Count: 5,538
Modelled Residue Count: 626
Deposited Residue Count: 676
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	338	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

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
0JQ Query on 0JQ Download Ideal Coordinates CCD File SDF format, chain L [auth A] SDF format, chain W [auth B] MOL2 format, chain L [auth A] MOL2 format, chain W [auth B]	L [auth A], W [auth B]	2-{1-[5-(6,7-dimethoxycinnolin-4-yl)-3-methylpyridin-2-yl]piperidin-4-yl}propan-2-ol C₂₄ H₃₀ N₄ O₃ PPAWFHDEPAUENY-UHFFFAOYSA-N		Interactions Focus chain L [auth A] Focus chain W [auth B] Interactions & Density Focus chain L [auth A] Focus chain W [auth B]
SO4 Query on SO4 Download Ideal Coordinates CCD File SDF format, chain E [auth A] SDF format, chain F [auth A] SDF format, chain G [auth A] SDF format, chain H [auth A] SDF format, chain I [auth A] SDF format, chain J [auth A] SDF format, chain K [auth A] SDF format, chain O [auth B] SDF format, chain P [auth B] SDF format, chain Q [auth B] SDF format, chain R [auth B] SDF format, chain S [auth B] SDF format, chain T [auth B] SDF format, chain U [auth B] SDF format, chain V [auth B] MOL2 format, chain E [auth A] MOL2 format, chain F [auth A] MOL2 format, chain G [auth A] MOL2 format, chain H [auth A] MOL2 format, chain I [auth A] MOL2 format, chain J [auth A] MOL2 format, chain K [auth A] MOL2 format, chain O [auth B] MOL2 format, chain P [auth B] MOL2 format, chain Q [auth B] MOL2 format, chain R [auth B] MOL2 format, chain S [auth B] MOL2 format, chain T [auth B] MOL2 format, chain U [auth B] MOL2 format, chain V [auth B]	E [auth A] F [auth A] G [auth A] H [auth A] I [auth A] E [auth A], F [auth A], G [auth A], H [auth A], I [auth A], J [auth A], K [auth A], O [auth B], P [auth B], Q [auth B], R [auth B], S [auth B], T [auth B], U [auth B], V [auth B]	SULFATE ION O₄ S QAOWNCQODCNURD-UHFFFAOYSA-L		Interactions Focus chain E [auth A] Focus chain F [auth A] Focus chain G [auth A] Focus chain H [auth A] Focus chain I [auth A] Focus chain J [auth A] Focus chain K [auth A] Focus chain O [auth B] Focus chain P [auth B] Focus chain Q [auth B] Focus chain R [auth B] Focus chain S [auth B] Focus chain T [auth B] Focus chain U [auth B] Focus chain V [auth B] Interactions & Density Focus chain E [auth A] Focus chain F [auth A] Focus chain G [auth A] Focus chain H [auth A] Focus chain I [auth A] Focus chain J [auth A] Focus chain K [auth A] Focus chain O [auth B] Focus chain P [auth B] Focus chain Q [auth B] Focus chain R [auth B] Focus chain S [auth B] Focus chain T [auth B] Focus chain U [auth B] Focus chain V [auth B]
ZN Query on ZN Download Ideal Coordinates CCD File SDF format, chain C [auth A] SDF format, chain D [auth A] SDF format, chain M [auth B] SDF format, chain N [auth B] MOL2 format, chain C [auth A] MOL2 format, chain D [auth A] MOL2 format, chain M [auth B] MOL2 format, chain N [auth B]	C [auth A], D [auth A], M [auth B], N [auth B]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N		Interactions Focus chain C [auth A] Focus chain D [auth A] Focus chain M [auth B] Focus chain N [auth B] Interactions & Density Focus chain C [auth A] Focus chain D [auth A] Focus chain M [auth B] Focus chain N [auth B]

Binding Affinity Annotations
ID	Source	Binding Affinity
0JQ	BindingDB: 4DDL	IC50: 4.9 (nM) from 1 assay(s)
	PDBBind: 4DDL	IC50: 4.9 (nM) from 1 assay(s)
	Binding MOAD: 4DDL	IC50: 4.9 (nM) from 1 assay(s)