人中心蛋白2磷酸化的电泳分析及影响因素研究
Electrophoretic analysis of phosphorylation of human centrin 2 and the influencing factors
摘要
为探究磷酸化修饰对蛋白质结构、性质及功能的调控机制,本研究采用非变性聚丙烯酰胺凝胶电泳(Native-PAGE)技术,系统验证了蛋白激酶A(PKA)对人中心蛋白2(HsCen2)的磷酸化修饰作用,并进一步探究了金属离子、小分子抑制剂以及XPC肽对该磷酸化过程的影响.实验结果表明,ATP、Mg2+和PKA是HsCen2发生磷酸化所必需的因子;而金属离子Ca2+与Tb3+、XPC肽以及钙调蛋白抑制剂盐酸氯丙嗪的存在,均显著抑制了HsCen2的磷酸化过程.
To explore the regulatory mechanism of phosphorylation modification on protein structure,property and function,this study systematically verified the phosphorylation modification effect of protein kinase A(PKA)on human centrin 2(HsCen2)by non-denatured polyacrylamide gel electrophoresis(Native PAGE)technology,and further investigated the influence of metal ions,small molecule inhibitors and XPC peptides on this phosphorylation process.The experimental results indicate that ATP,Mg2+,and PKA are essential factors for the phosphorylation of HsCen2.In contrast,the presence of the metal ions Ca2+,Tb3+,XPC peptide,and the calmodulin inhibitor chlorpromazine hydrochloride are capable of significantly inhibiting the phosphorylation process of HsCen2.
年,卷(期):
2026, 45(7)
分类号:
O611
Q501
机标分类号:
Q936
Q513
TS201.2+1
在线出版日期:
2026年7月30日
基金项目:
2025L136:山西省教育厅基金项目25TYKY121:太原学院科研启动基金项目,