3B5R image
Entry Detail
PDB ID:
3B5R
Keywords:
Title:
Crystal structure of the androgen receptor ligand binding domain in complex with SARM C-31
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2007-10-26
Release Date:
2008-09-09
Method Details:
Experimental Method:
Resolution:
1.80 Å
R-Value Free:
0.27
R-Value Work:
0.23
R-Value Observed:
0.23
Space Group:
P 21 21 21
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Androgen receptor
Chain IDs:A
Chain Length:249
Number of Molecules:1
Biological Source:Homo sapiens
Ligand Molecules
Primary Citation
Effect of B-ring substitution pattern on binding mode of propionamide selective androgen receptor modulators
Bioorg.Med.Chem.Lett. 18 5567 5570 (2008)
PMID: 18805694 DOI: 10.1016/j.bmcl.2008.09.002

Abstact

Selective androgen receptor modulators (SARMs) are essentially prostate sparing androgens, which provide therapeutic potential in osteoporosis, male hormone replacement, and muscle wasting. Herein we report crystal structures of the androgen receptor (AR) ligand-binding domain (LBD) complexed to a series of potent synthetic nonsteroidal SARMs with a substituted pendant arene referred to as the B-ring. We found that hydrophilic B-ring para-substituted analogs exhibit an additional region of hydrogen bonding not seen with steroidal compounds and that multiple halogen substitutions affect the B-ring conformation and aromatic interactions with Trp741. This information elucidates interactions important for high AR binding affinity and provides new insight for structure-based drug design.

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Primary Citation of related structures