1ilh

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[[Image:1ilh.gif|left|200px]]
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{{Seed}}
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{{STRUCTURE_1ilh| PDB=1ilh | SCENE= }}
{{STRUCTURE_1ilh| PDB=1ilh | SCENE= }}
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'''Crystal Structure of Human Pregnane X Receptor Ligand Binding Domain Bound to SR12813'''
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===Crystal Structure of Human Pregnane X Receptor Ligand Binding Domain Bound to SR12813===
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==Overview==
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The human nuclear pregnane X receptor (hPXR) activates cytochrome P450-3A expression in response to a wide variety of xenobiotics and plays a critical role in mediating dangerous drug-drug interactions. We present the crystal structures of the ligand-binding domain of hPXR both alone and in complex with the cholesterol-lowering drug SR12813 at resolutions of 2.5 and 2.75 angstroms, respectively. The hydrophobic ligand-binding cavity of hPXR contains a small number of polar residues, permitting SR12813 to bind in three distinct orientations. The position and nature of these polar residues were found to be critical for establishing the precise pharmacologic activation profile of PXR. Our findings provide important insights into how hPXR detects xenobiotics and may prove useful in predicting and avoiding drug-drug interactions.
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(as it appears on PubMed at http://www.pubmed.gov), where 11408620 is the PubMed ID number.
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{{ABSTRACT_PUBMED_11408620}}
==About this Structure==
==About this Structure==
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[[Category: Promiscuous]]
[[Category: Promiscuous]]
[[Category: Xenobiotic]]
[[Category: Xenobiotic]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 20:07:51 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 13:27:45 2008''

Revision as of 10:27, 1 July 2008

Image:1ilh.png

Template:STRUCTURE 1ilh

Crystal Structure of Human Pregnane X Receptor Ligand Binding Domain Bound to SR12813

Template:ABSTRACT PUBMED 11408620

About this Structure

1ILH is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

The human nuclear xenobiotic receptor PXR: structural determinants of directed promiscuity., Watkins RE, Wisely GB, Moore LB, Collins JL, Lambert MH, Williams SP, Willson TM, Kliewer SA, Redinbo MR, Science. 2001 Jun 22;292(5525):2329-33. Epub 2001 Jun 14. PMID:11408620

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