3K22

Glucocorticoid Receptor with Bound alaninamide 10 with TIF2 peptide

Summary for 3K22

• Entry DOI: 10.2210/pdb3k22/pdb
• Related: 3K23
• Descriptor: Glucocorticoid receptor, Transcriptional Intermediary Factor 2, N-[(1R)-2-amino-1-methyl-2-oxoethyl]-3-(6-methyl-4-{[3,3,3-trifluoro-2-hydroxy-2-(trifluoromethyl)propyl]amino}-1H-indazol-1-yl)benzamide, ... (5 entities in total)
• Functional Keywords: glucocorticoid receptor, steroid hormone receptor, nuclear receptor, gr, glucocorticoids, alpha helical sandwich, meta-channel, alternative initiation, chromatin regulator, disease mutation, dna-binding, isopeptide bond, lipid-binding, metal-binding, nucleus, phosphoprotein, pseudohermaphroditism, receptor, steroid-binding, transcription, transcription regulation, zinc-finger
• Biological source: Homo sapiens (human); More
• Total number of polymer chains: 4
• Total formula weight: 64756.99

Authors

Biggadike, K.B.,McLay, I.M.,Madauss, K.P.,Williams, S.P.,Bledsoe, R.K. (deposition date: 2009-09-29, release date: 2010-08-11, Last modification date: 2024-03-13)

Primary citation

Biggadike, K.,Bledsoe, R.K.,Coe, D.M.,Cooper, T.W.,House, D.,Iannone, M.A.,Macdonald, S.J.,Madauss, K.P.,McLay, I.M.,Shipley, T.J.,Taylor, S.J.,Tran, T.B.,Uings, I.J.,Weller, V.,Williams, S.P.
Design and x-ray crystal structures of high-potency nonsteroidal glucocorticoid agonists exploiting a novel binding site on the receptor.
Proc.Natl.Acad.Sci.USA, 106:18114-18119, 2009

PubMed Abstract: Crystallography and computer modeling have been used to exploit a previously unexplored channel in the glucocorticoid receptor (GR). Highly potent, nonsteroidal indazole amides showing excellent complementarity to the channel were designed with the assistance of the computational technique AlleGrow. The accuracy of the design process was demonstrated through crystallographic structural determination of the GR ligand-binding domain-agonist complex of the D-prolinamide derivative 11. The utility of the channel was further exemplified through the design of a potent phenylindazole in which structural motifs, seen to interact with the traditional GR ligand pocket, were abandoned and replaced by interactions within the new channel. Occupation of the channel was confirmed with a second GR crystal structure of this truncated D-alaninamide derivative 13. Compound 11 displays properties compatible with development as an intranasal solution formulation, whereas oral bioavailability has been demonstrated with a related truncated exemplar 14. Data with the pyrrolidinone amide 12 demonstrate the potential for further elaboration within the "meta" channel to deliver compounds with selectivity for the desired transrepressive activity of glucocorticoids. The discovery of these interactions with this important receptor offers significant opportunities for the design of novel GR modulators.

PubMed: 19822747
DOI: 10.1073/pnas.0909125106

Experimental method

X-RAY DIFFRACTION (2.1 Å)