3aun

From Proteopedia

Crystal structure of the rat vitamin D receptor ligand binding domain complexed with YR335 and a synthetic peptide containing the NR2 box of DRIP 205

Structural highlights

3aun is a 2 chain structure with sequence from Rattus norvegicus and Synthetic construct. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 1.81Å
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

VDR_RAT Nuclear hormone receptor. Transcription factor that mediates the action of vitamin D3 by controlling the expression of hormone sensitive genes. Regulates transcription of hormone sensitive genes via its association with the WINAC complex, a chromatin-remodeling complex. Recruited to promoters via its interaction with the WINAC complex subunit BAZ1B/WSTF, which mediates the interaction with acetylated histones, an essential step for VDR-promoter association. Plays a central role in calcium homeostasis.^[1]

Publication Abstract from PubMed

We designed and synthesized nonsecosteroidal vitamin D receptor (VDR) ligands that formed H-bonds with six amino acid residues (Tyr143, Ser233, Arg270, Ser274, His301 and His393) of the VDR ligand-binding domain. The ligand YR335 exhibited potent transcriptional activity, which was comparable to those of 1alpha,25-dihydroxyvitamin D(3) and YR301. The crystal structure of the complex formed between YR335 and the VDR ligand-binding domain was solved, which revealed that YR335 formed H-bonds with the six amino acid residues mentioned above.

Design, synthesis and X-ray crystallographic study of new nonsecosteroidal vitamin D receptor ligands.,Demizu Y, Takahashi T, Kaneko F, Sato Y, Okuda H, Ochiai E, Horie K, Takagi K, Kakuda S, Takimoto-Kamimura M, Kurihara M Bioorg Med Chem Lett. 2011 Oct 15;21(20):6104-7. Epub 2011 Aug 17. PMID:21889334^[2]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Vanhooke JL, Tadi BP, Benning MM, Plum LA, DeLuca HF. New analogs of 2-methylene-19-nor-(20S)-1,25-dihydroxyvitamin D3 with conformationally restricted side chains: evaluation of biological activity and structural determination of VDR-bound conformations. Arch Biochem Biophys. 2007 Apr 15;460(2):161-5. Epub 2006 Dec 12. PMID:17227670 doi:10.1016/j.abb.2006.11.029
↑ Demizu Y, Takahashi T, Kaneko F, Sato Y, Okuda H, Ochiai E, Horie K, Takagi K, Kakuda S, Takimoto-Kamimura M, Kurihara M. Design, synthesis and X-ray crystallographic study of new nonsecosteroidal vitamin D receptor ligands. Bioorg Med Chem Lett. 2011 Oct 15;21(20):6104-7. Epub 2011 Aug 17. PMID:21889334 doi:10.1016/j.bmcl.2011.08.047