通过单个酶水解优化β-乳糖球蛋白抗原性:探索结构变化和对线性表位的影响.
Peng Sun1, Xiaomeng Wu1, Qi Sun1
1School of Food Science and Technology, Dalian Polytechnic University, Dalian 116000, Liaoning, China.
Food chemistry
|October 30, 2024
概括
使用氨酸,甲基氨酸,帕帕因和茎胺的酶性水解通过降解其结构和分裂过敏原表位物,有效地降低了β-乳糖球蛋白 (β-LG) 的过敏性.
科学领域:
- 食品科学 食品科学 食品科学
- 过敏研究 研究过敏
- 生物化学 生物化学
背景情况:
- β-乳糖球蛋白 (β-LG) 是一种主要的乳制品过敏原.
- 关于降低β-LG抗原性的最佳酶条件的研究有限.
- 生物信息学可以识别用于过敏原表位消除的蛋白酶.
研究的目的:
- 研究β-LG化物的抗原性,结构和形状.
- 确定有效消除过敏原表位的蛋白酶.
- 为低过敏性乳制品材料开发提供基础.
主要方法:
- 优势蛋白酶的生物信息选择.
- 使用氨酸,甲基氨酸,帕帕因和茎氨酸进行β-LG的酶性水解.
- 对抗原减少,结构变化和分布的分析.
主要成果:
- 最佳水解降低了β-LG抗原性的33.54%47.37%.
- 蛋白酶降解了β-LG,减少了α-螺旋体含量,光和表面水性.
- 线性表位的裂变导致了不同的抗原减少率.
结论:
- 酶性水解有效地降低了β-LG的过敏性.
- 特定的蛋白酶为制造低过敏性乳制品提供了有针对性的方法.
- 这些发现支持开发低过敏性乳制品材料的酶性水解.
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