来自 (Litopenaeus vannamei) 的酶的表征和结构分析
Xiaoxi Chang1, Tuo Zhang1, Jiachen Zang1
1College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China.
Journal of agricultural and food chemistry
|November 30, 2023
概括
研究人员对类过敏原LvEnolase进行了表征,揭示了其氨基酸序列和3D结构. 这项研究为埃诺拉斯功能和过敏机制提供了关键的见解.
科学领域:
- 生物化学 生物化学
- 结构生物学 结构生物学
- 过敏学 过敏学
背景情况:
- 转录组分析发现Litopenaeus vannamei enolase (LvEnolase) 是一个潜在的过敏原.
- 关于LvEnolase的氨基酸序列和蛋白质结构的信息有限.
研究的目的:
- 从Litopenaeus vannamei.中分离和描述天然的LvEnolase.
- 为了确定LvEno.lase的晶体结构.
- 为了研究LvEno.lase的功能性质.
主要方法:
- 自然LvEnolase的分离和净化.
- 克隆了编码LvEnolase. 的全长cDNA序列.
- 用于结晶结构确定的X射线晶体学 (PDB: 8UEL).
- 酶活性测定. 酶活性测定.
主要成果:
- 克隆了LvEnolase的全长cDNA序列,编码了434个氨基酸残留物.
- 在2.5 Å分辨率下确定了LvEnolase的晶体结构.
- 在开放和关闭状态中观察到活跃中心附近的动态循环,与产品发布相关.
- 纯化LvEnolase表现出催化活性.
结论:
- 这项研究提供了LvEnolase的第一个详细表征,包括其结构和功能.
- 这些发现有助于更好地了解埃诺拉酶蛋白家族.
- 这项研究为进一步调查LvEnolase在过敏中的作用提供了基础.
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