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弗格森对多种中间物种的热展开的牛血清白蛋白进行了分析

Yui Tomioka¹, Satoru Nagatoishi², Masataka Nakagawa¹

¹Research and Development Division, Kyokuto Pharmaceutical Industrial Co., Ltd., 3333-26, Aza-Asayama, Kamitezuna Takahagi-shi, Ibaraki 318-0004, Japan.

Biophysical chemistry

|August 23, 2023

概括

弗格森的情节显示,牛血清白蛋白 (BSA) 的热展开会产生中间物种. 这些物种的这些物种.

科学领域:

生物化学生物化学
蛋白质化学蛋白质化学
物理化学物理化学

背景情况:

牛血清白蛋白 (BSA) 是生物系统中的一个关键蛋白质.
了解蛋白质的热展开对于各种应用至关重要.
描述中间物种可以了解蛋白质的稳定性.

研究的目的:

描述在牛血清白蛋白 (BSA) 热展开过程中形成的中间物种.
研究pH值,蛋白质度和缓冲器类型对BSA展开中间体的影响.
为了确定这些中间物种的结构性质.

主要方法:

差分扫描热度计 (DSC) 用于确定融温度 (Tm).
阿加洛斯原生凝电泳以分析蛋白质物种.
弗格森图案分析,以评估中间体的尺寸和负载.
SYPRO色染色用于检测未折叠的蛋白质.

主要成果:

在Tris-HCl和酸盐缓冲器中,BSA在~68°C处呈现不可逆转的化.
在70-80°C的热展开产生多个中间物种.
中间物种的形成取决于pH值 (7.0-8.0),蛋白质度和缓冲区.
弗格森图片分析表明,在60°C的物种是本地物种,而在更高温度的物种则具有更大的水力动力学尺寸.

结论:

弗格森图形分析有效地描述了BSA的热展开中间体.
在BSA的热展开过程中,形成了具有不同结构性质的多种中间物种.
环境因素显著影响这些展开的中间体的性质和形成.

关键词:

BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA 弗格森的阴谋弗格森的阴谋塞浦路斯SYPRO的色是色的展开展开的时间

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