分子洞察硫酸多糖富可伊丹对 hialuronidase活动的抑制作用
Zeyuan Feng1, Jinwen Li2, Shu Jie Li1,3
1Department of Biophysics, School of Physics Science, The Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin 300071, P. R. China.
Journal of agricultural and food chemistry
|August 18, 2025
概括
富科伊丹有效地抑制氨酸酶,一种降解氨酸的酶. 这种天然化合物表现出强烈的竞争性抑制和稳定的结合,保持了氨酸的功能.
科学领域:
- 生物化学 生物化学
- 酶学 是一种酶学.
- 自然产品 化学 化学
背景情况:
- 氨酸 (HA) 在体内保持水分和透调节方面至关重要.
- 氨基酶酶降解HA,影响生理功能.
- 富科伊丹是一种来自棕藻的硫酸多糖,因其生物活性而受到探索.
研究的目的:
- 为了研究福科伊丹对牛丸氨酸酶活性的抑制作用.
- 为了确定富可伊丹与氨酸酶的结合机制和结合亲和力.
主要方法:
- 纯化牛丸的氨酸酶.
- 酶抑制试验用于确定IC50值.
- 分子对接和分子动力学模拟.
- 拉玛钱德兰对结构变化的情节分析.
主要成果:
- 富科伊丹显示出强烈的竞争性抑制氨基酶,IC50为4.137μM.
- 分子对接揭示了fucoidan通过键和疏水相互作用与氨酶活性部位的结合.
- 分子动力学模拟显示了稳定的富可伊丹-氨基酶复合物 (结合能量: -24.59 kcal/mol).
- 结构分析表明,富可伊丹结合会诱导一个更惰性和紧的活性部位.
结论:
- 富科伊丹是一种强有力的竞争性抑制剂 氨基酶.
- 结合是稳定的,并且涉及酶的活性部位的特定相互作用.
- 富科伊丹的抑制作用表明,它在保持氨酸水平方面有潜在的应用.
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