Structural Basis of Single-Nucleotide Polymorphisms in Cytochrome P450 2C9.
Structural Basis of Single-Nucleotide Polymorphisms in Cytochrome P450 2C9.
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DOI:
10.1021/acs.biochem.7b00795
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发表时间:
2017-10-17
期刊:
影响因子:
2.9
通讯作者:
Shah MB
中科院分区:
文献类型:
--
作者:
Maekawa K;Adachi M;Matsuzawa Y;Zhang Q;Kuroki R;Saito Y;Shah MB
Single nucleotide polymorphisms in drug metabolizing Cytochrome P450 (CYP) enzymes are important contributors to inter-individual differences in drug metabolism leading to adverse drug reactions. Despite their extensive characterization and importance in pharmacogenetics of clinical drugs, the structural basis of CYP polymorphisms has remained scant. Here we report the crystal structures of human CYP2C9 and its polymorphic variants, *3 (I359L) and *30 (A477T), with an anti-hypertensive drug losartan. The structures show distinct interaction and occupation of losartan in the active site, the access channel and the peripheral binding site. The I359L substitution located far away from the active site remarkably altered the residue sidechains near the active site and the access channel. Whereas the T477 substitution illustrated hydrogen-bonding interaction with the reoriented sidechain of Q214. The results provide structural insights into reduced catalytic activity of the CYP2C9 variants and have important implications for understanding genetic polymorphisms in CYP-mediated drug metabolism.
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影响因子:
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作者:
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通讯作者:
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影响因子:
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作者:
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DOI:
10.1073/pnas.0603236103
发表时间:
2006-09-12
影响因子:
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通讯作者:
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