脂肪酸结合蛋白4(Fatty Acid Binding Protein 4,FABP4)作为脂肪酸伴侣,参与调节脂肪酸代谢、运输、脂介导的信号转导以及巨噬细胞的炎症反应。该蛋白的抑制经常作为治疗脂肪代谢疾病的有效方案。本文报道了经典非甾体抗炎药阿司匹林及...脂肪酸结合蛋白4(Fatty Acid Binding Protein 4,FABP4)作为脂肪酸伴侣,参与调节脂肪酸代谢、运输、脂介导的信号转导以及巨噬细胞的炎症反应。该蛋白的抑制经常作为治疗脂肪代谢疾病的有效方案。本文报道了经典非甾体抗炎药阿司匹林及其水解物水杨酸与FABP4蛋白复合物的晶体结构,从而推测阿司匹林可能通过FABP4蛋白途径抑制动脉粥样硬化的分子机制。结构分析进一步阐明了FABP4蛋白疏水残基Phe16苯环侧链与水杨酸之间的C-H-π相互作用比亲水位点静电相互作用提供更稳定的结合。该发现为设计更高选择性FABP4抑制剂提供了新的途径。展开更多
Snake toxin Calciseptine as a natural antagonist of L-type calcium channel has potential drug values, but its structural information remains unknown. Here, we report the total chemical synthesis of Calciseptine by usi...Snake toxin Calciseptine as a natural antagonist of L-type calcium channel has potential drug values, but its structural information remains unknown. Here, we report the total chemical synthesis of Calciseptine by using hydrazide based native chemical ligation. The crystal structure of Calciseptine was determined by racemic protein crystallography technique. Compared to the structure of its homologous family protein, we found that Calciseptine is adopting a typical three-finger structure.展开更多
文摘脂肪酸结合蛋白4(Fatty Acid Binding Protein 4,FABP4)作为脂肪酸伴侣,参与调节脂肪酸代谢、运输、脂介导的信号转导以及巨噬细胞的炎症反应。该蛋白的抑制经常作为治疗脂肪代谢疾病的有效方案。本文报道了经典非甾体抗炎药阿司匹林及其水解物水杨酸与FABP4蛋白复合物的晶体结构,从而推测阿司匹林可能通过FABP4蛋白途径抑制动脉粥样硬化的分子机制。结构分析进一步阐明了FABP4蛋白疏水残基Phe16苯环侧链与水杨酸之间的C-H-π相互作用比亲水位点静电相互作用提供更稳定的结合。该发现为设计更高选择性FABP4抑制剂提供了新的途径。
基金supported by the National Natural Science Foundation of China (21572043, 21473176)the Ministry of Science and Technology (2016YFA0400900, 2015CB910103)the Fundamental Research Funds for the Central Universities (PA2017GDQT0021)
文摘Snake toxin Calciseptine as a natural antagonist of L-type calcium channel has potential drug values, but its structural information remains unknown. Here, we report the total chemical synthesis of Calciseptine by using hydrazide based native chemical ligation. The crystal structure of Calciseptine was determined by racemic protein crystallography technique. Compared to the structure of its homologous family protein, we found that Calciseptine is adopting a typical three-finger structure.