ISDA

Entry Detail

PDB ID:

3AX8

Keywords:

Title:

Crystal structure of the human vitamin D receptor ligand binding domain complexed with 15alpha-methoxy-1alpha,25-dihydroxyvitamin D3

Biological Source:

Source Organism:

Homo sapiens

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2011-03-30

Release Date:

2011-10-05

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.60 Å

R-Value Free:

0.29

R-Value Work:

0.21

R-Value Observed:

0.21

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Vitamin D3 receptor
Mutations:DEL(165-215) mutant
Chain IDs:A
Chain Length:263
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P11473 Pfam ID:PF00104

Ligand Molecules

EIM

Primary Citation

New C15-substituted active vitamin D3

Shindo, K, Kumagai, G, Takano, M, Sawada, D, Saito, N, Saito, H, Kakuda, S, Takagi, K, Ochiai, E, Horie, K, Takimoto-Kamimura, M, Ishizuka, S, Takenouchi, K, Kittaka, A.Show

Org.Lett. 13 2852 2855 (2011)

PMID: 21539305 DOI: 10.1021/ol200828s

Abstact

C15-Substituted 1α,25-dihydroxyvitamin D(3) analogs were synthesized for the first time to investigate the effects of the modified CD-ring on biological activity concerning the agonistic positioning of helix-3 and helix-12 of the vitamin D receptor (VDR). X-ray cocrystallographic analysis proved that 0.6 Å shifts of the CD-ring and shrinking of the side chain were necessary to maintain the position of the 25-hydroxy group for proper interaction with helix-12. The 15-hydroxy-16-ene derivative showed higher binding affinity for hVDR than the natural hormone.

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Primary Citation of related structures