原蛋白为人类纤维素原提供了对酸性压力的结构性保护:生物化学和分子洞察力
Aisha Farhana1, Abdullah Alsrhani1, Yusuf Saleem Khan2
1Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka 72388, Aljouf Province, Saudi Arabia.
Biomolecules
|May 24, 2024
概括
原蛋白保护纤维素素,一个关键的血液凝固蛋白,免受过氧酸 (ONOO-) 造成的损伤. 这种天然化合物保留了纤维蛋白质的结构和功能,可以抵抗氧化应激.
科学领域:
- 生物化学 生化学
- 氧化压力研究研究 氧化压力研究
- 自然产品化学 自然产品化学
背景情况:
- 过氧酸盐 (ONOO-) 是一种氧化剂,涉及到各种人类疾病.
- 原蛋白是一种具有已知的健康益处的黄类化合物,尚未研究其对ONOO-的影响.
- 纤维素素是血液凝固的关键因素,易受ONOO引起的损伤.
研究的目的:
- 调查阿皮基宁对ONOO-诱导的人类纤维素原的结构损伤的保护潜力.
- 阐明阿比基因因减轻ONOO对纤维素原的影响的机制.
主要方法:
- 纤维素原被暴露在在存在或缺少阿皮基宁的情况下的ONOO-中.
- 使用紫外线光谱,光光谱 (托,氨酸),蛋白质疏水性试验,碳化试验和SDS-PAGE来评估保护功效.
- 分析了纤维素原的结构完整性和修改.
主要成果:
- 原蛋白显著抑制了ONOO诱导的氧化损伤. 纤维素原.
- 原蛋白逆转了ONOO - - 引起的紫外线吸收,托/氨酸光和蛋白质疏水性的变化.
- 原蛋白被保护免受ONOO诱导的蛋白质碳化和保留的纤维素多链 (Aα, γ).
结论:
- 原蛋白为人体纤维素素提供结构性保护,防止过氧酸诱导的化损伤.
- 原蛋白保护所有三种纤维素聚链 (Aα,Bβ,γ).
- 原蛋白防止氨基酸变化和因ONOO-引起的疏水性部位暴露.
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