控制昼夜节律的分子机制

单击此处编辑母版标题样式,编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,First,two questions.,When do you get up?,When do you go to bed?,The biological clock is warning you,The molecular mechanism of controlling circadian rhythm,控制昼夜节律的分子机制,Reporter,：,Zhang Qing,The sunset but the rest.,（日落而息）,The sunrise makes.,(,日出而作,),A phenomenon of the circadian rhythm,/,the biological clock,HOW DOES IT WORK IN GENE?,The,fruit fly,:,sleeps during the day,howls,during the night,WHY?,The mutation(,缺失,)of a,period gene,in the body,周期基因,How to Realize Regulation of Circadian Rhythm precisly?,如何实现昼夜节律的精确调控,?,What Is the,Period Gene,?,The,per,iod gene encodes a protein called,PER,.,The,tim,eless gene encodes a protein called,TIM,.,The,double-time,gene encodes a protein called,DBT,.,The,PER,protein will be transferred from the cytoplasm(,细胞质,)to the nucleus with the help of,TIM,protein at night.,The PER protein will,degrade,（降解）,during the day.,The process of accumulation and degradation is about 24 hours,which corresponds to peoples day and night.,DBT,is to slow down the accumulation,（积累）,of PER protein,which allows precise regulation of circadian rhythms.,Open the lock requires,two keys,one called the PER protein,and the other called a TIM.,The frequency(,频率,)of opening the door is controlled by the DBT protein.,The process is liked as a lock and a key,First,heal some of the genetic diseases,（遗传性疾病）,.,Second,cure insomnia(,失眠,).,Third,reveal the danger of staying up late.,What is The Use of This Finding?,At last but not at least,we must let the body rest at the right time.,Pay attention to the biological clock,who is warning you!,THANK YOU!,