人类细胞染色体P450 3A7与其原生基质脱水三硫酸三硫酸盐的四个副本结合
Jinghan Liu1, Sylvie E Kandel2, Jed N Lampe2
1Department of Medicinal Chemistry, University of Michigan, Ann Arbor, Michigan, USA.
The Journal of biological chemistry
|July 1, 2023
概括
人类胎儿细胞染色体P450 3A7 (CYP3A7) 结合其基质脱氨3-硫酸盐 (DHEA-S) 的四个副本,揭示了复杂的相互作用. 这种结构洞察力有助于对CYP3A7的理解.
科学领域:
- 生物化学 生物化学
- 酶学 是一种酶学.
- 结构生物学 结构生物学
背景情况:
- 人类胎儿细胞染色体P450 3A7 (CYP3A7) 在异生物代谢和醇生物合成中起作用.
- 在基质相互作用方面,CYP3A7的理解比CYP3A4少.
研究的目的:
- 描述人类胎儿细胞染色体P450 3A7 (CYP3A7) 的基质结合特性.
- 阐明CYP3A7与类固醇基质相互作用的结构基础.
主要方法:
- 一个突变的CYP3A7形式的X射线晶体学.
- 酶的和与其内源基质,脱氨 3-硫酸盐 (DHEA-S).
主要成果:
- 一个2.6 Å的X射线结构揭示了四个DHEA-S分子的同时结合.
- DHEA-S分子占据了活性部位,一个联体接入通道和F'-G'表面.
- DHEA-S结合和代谢没有表现出合作动力学,但结构表明潜在的合作性.
结论:
- CYP3A7表现出与类固醇基质相互作用的复杂机制.
- 这些结构数据为了解CYP3A7在新陈代谢和生物合成中的作用提供了基础.
关键词:
在 CYP3A7A7 中.在DHEA-S中使用.在X射线晶体学.细胞染色体P450的使用.脱水安德罗斯特硫酸盐脱水安德罗斯特硫酸盐酶动力学 酶动力学类型: 类型: 类型: 类型: 类型: 类型: 类型: 类型: 类型: 类型: 类型: 类型: 类型: 类型: 类型: 类型: 类型: 类型: 类型: 类型: 类型: 类型: 类型: 类型: 类型: 类型:更多相关视频
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