CRYSTALLOGRAPHIC STUDIES ON HUMAN CYTOCHROME P450 3A4
Stanford University, Stanford CA
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Abstract
This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. Cytochrome P450 3A4 (CYP3A4) is the major zenobiotic- and drug-metabolizing human enzyme that is also involved in carcinogen activation. One of the areas significantly affected by the CYP3A4-mediated enzymatic transformations is development of anti-HIV drugs. To date, only a limited number of low-resolution x-ray structures of CYP3A4 complexes with substrates, drugs and inhibitors are available. To better understand the mechanism of CYP3A4 catalysis and inhibition, we obtained crystals of the enzyme bound to various substrates and inhibitors and aim to extend their resolution by collecting synchrotron data.
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