ISDA

Deposition Date 2007-06-05

Release Date 2007-08-07

Last Version Date 2024-02-21

Entry Detail

PDB ID:

2Q70

Keywords:

TRANSCRIPTION

Title:

Estrogen receptor alpha ligand-binding domain complxed to a benzopyran ligand

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.95 Å

R-Value Free:

0.30

R-Value Work:

0.26

Space Group:

C 2 2 21

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Estrogen receptor
Gene (Uniprot):ESR1
Mutagens:C381S, C417S, C530S
Chain IDs:A, B
Chain Length:248
Number of Molecules:2
Biological Source:Homo sapiens

UniProt ID:P03372 Pfam ID:PF00104

Ligand Molecules

DC8

Primary Citation

Benzopyrans as selective estrogen receptor beta agonists (SERBAs). Part 3: synthesis of cyclopentanone and cyclohexanone intermediates for C-ring modification.

Richardson, T.I, Dodge, J.A, Durst, G.L, Pfeifer, L.A, Shah, J, Wang, Y, Durbin, J.D, Krishnan, V, Norman, B.H.Show

Bioorg.Med.Chem.Lett. 17 4824 4828 (2007)

PMID: 17614275 DOI: 10.1016/j.bmcl.2007.06.052

Abstact

Benzopyrans are selective estrogen receptor (ER) beta agonists (SERBAs), which bind the ER subtypes alpha and beta in opposite orientations. Here we describe the syntheses of cyclopentanone and cyclohexanone intermediates for SAR studies of the C-ring on the benzopyran scaffold. Modification of the C-ring disrupts binding to ERalpha, thus improving ERbeta selectivity up to 100-fold. X-ray cocrystal structures confirm previously observed binding modes.

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Primary Citation of related structures