ISDA

Deposition Date 2006-09-19

Release Date 2006-12-26

Last Version Date 2024-12-25

Entry Detail

PDB ID:

2IEG

Keywords:

TRANSFERASE

Title:

Crystal structure of rabbit muscle glycogen phosphorylase in complex with 3,4-dihydro-2-quinolone

Biological Source:

Source Organism:

Oryctolagus cuniculus (Taxon ID: 9986)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.90 Å

R-Value Free:

0.26

R-Value Work:

0.22

R-Value Observed:

0.23

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Glycogen phosphorylase, muscle form
Gene (Uniprot):PYGM
Chain IDs:A, B
Chain Length:842
Number of Molecules:2
Biological Source:Oryctolagus cuniculus

UniProt ID:P00489 Pfam ID:PF00343 EC:2.4.1.1

Ligand Molecules

FRY

PLR

Primary Citation

Development of potent, orally active 1-substituted-3,4-dihydro-2-quinolone glycogen phosphorylase inhibitors.

Birch, A.M, Kenny, P.W, Oikonomakos, N.G, Otterbein, L, Schofield, P, Whittamore, P.R, Whalley, D.P.Show

Bioorg.Med.Chem.Lett. 17 394 399 (2007)

PMID: 17095214 DOI: 10.1016/j.bmcl.2006.10.037

Abstact

A series of substituted 3,4-dihydro-2-quinolone glycogen phosphorylase inhibitors, which have potential as antidiabetic agents, is described. Initial members of the series showed good enzyme inhibitory potency but poor physical properties. Optimisation of the 1-substituent led to 2,3-dihydroxypropyl compounds which showed good in vitro potency and improved physical properties, together with good DMPK profiles and acute in vivo efficacy in a rat model. X-ray crystallographic data are presented, showing an unexpected variety of binding orientations at the dimer interface site.

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Primary Citation of related structures