2j0d: Difference between revisions

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[[Image:2j0d.gif|left|200px]]
[[Image:2j0d.png|left|200px]]


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==Overview==
{{ABSTRACT_16954191}}
Cytochrome P450 (CYP) 3A4 is the most promiscuous of the human CYP enzymes and contributes to the metabolism of approximately 50% of marketed drugs. It is also the isoform most often involved in unwanted drug-drug interactions. A better understanding of the molecular mechanisms governing CYP3A4-ligand interaction therefore would be of great importance to any drug discovery effort. Here, we present crystal structures of human CYP3A4 in complex with two well characterized drugs: ketoconazole and erythromycin. In contrast to previous reports, the protein undergoes dramatic conformational changes upon ligand binding with an increase in the active site volume by &gt;80%. The structures represent two distinct open conformations of CYP3A4 because ketoconazole and erythromycin induce different types of coordinate shifts. The binding of two molecules of ketoconazole to the CYP3A4 active site and the clear indication of multiple binding modes for erythromycin has implications for the interpretation of the atypical kinetic data often displayed by CYP3A4. The extreme flexibility revealed by the present structures also challenges any attempt to apply computational design tools without the support of relevant experimental data.


==About this Structure==
==About this Structure==
2J0D is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. The following page contains interesting information on the relation of 2J0D with [[http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/pdb82_1.html Cytochrome p450]]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2J0D OCA].  
2J0D is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. The following page contains interesting information on the relation of 2J0D with [[http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/pdb82_1.html Cytochrome p450]]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2J0D OCA].  
==Reference==
Structural basis for ligand promiscuity in cytochrome P450 3A4., Ekroos M, Sjogren T, Proc Natl Acad Sci U S A. 2006 Sep 12;103(37):13682-7. Epub 2006 Sep 5. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16954191 16954191]
[[Category: Cytochrome p450]]
[[Category: Cytochrome p450]]
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Polymorphism]]
[[Category: Polymorphism]]
[[Category: Transmembrane]]
[[Category: Transmembrane]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May  4 08:09:41 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Jun 26 18:19:33 2008''

Revision as of 15:19, 26 June 2008

File:2j0d.png

Template:STRUCTURE 2j0d

CRYSTAL STRUCTURE OF HUMAN P450 3A4 IN COMPLEX WITH ERYTHROMYCIN


Template:ABSTRACT 16954191

About this Structure

2J0D is a Single protein structure of sequence from Homo sapiens. The following page contains interesting information on the relation of 2J0D with [Cytochrome p450]. Full crystallographic information is available from OCA.

Page seeded by OCA on Thu Jun 26 18:19:33 2008

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