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G蛋白偶联受体:视觉和疾病

G-Protein Coupled Receptors: Vision and Disease
课程网址: http://ocw.mit.edu/courses/biology/7-342-g-protein-coupled-recept...  
主讲教师: Parvathi Kota
开课单位: 麻省理工学院
开课时间: 2007-01-01
课程语种: 英语
中文简介:
我们如何与外界沟通?我们对视觉,嗅觉,味觉和疼痛的感觉如何在细胞和分子水平上得到控制?导致过敏,高血压,抑郁,肥胖和各种中枢神经系统疾病等疾病的原因是什么? G蛋白偶联受体(GPCR)是所有这些问题的主要答案。 GPCR构成最大的细胞表面受体家族,并且人类由超过1,000个基因编码。 GPCR将细胞外信息转化为细胞内反应,并且基本上涉及所有生理过程。 GPCR功能障碍导致许多人类疾病,目前市场上超过50%的处方药直接或间接靶向GPCR。在本课程中,我们将讨论GPCR信号转导途径,GPCR寡聚化和由GPCR功能障碍引起的疾病。我们将研究视紫红质的结构和功能,视紫红质是一种昏暗的光感受器和经过充分研究的GPCR,可将光转换为发送到大脑并导致视觉的电脉冲。我们还将讨论视紫红质的突变如何导致视网膜变性和先天性夜盲症。本课程是麻省理工学院生物系提供的许多高级本科研讨会之一。这些研讨会专为有兴趣使用初级研究文献的学生量身定制,以便在高度互动的环境中讨论和了解当前的生物学研究。高级本科生研讨会的许多讲师都是博士后科学家,他们对教学非常感兴趣。
课程简介: How do we communicate with the outside world? How are our senses of vision, smell, taste and pain controlled at the cellular and molecular levels? What causes medical conditions like allergies, hypertension, depression, obesity and various central nervous system disorders? G-protein coupled receptors (GPCRs) provide a major part of the answer to all of these questions. GPCRs constitute the largest family of cell-surface receptors and in humans are encoded by more than 1,000 genes. GPCRs convert extracellular messages into intracellular responses and are involved in essentially all physiological processes. GPCR dysfunction results in numerous human disorders, and over 50% of all prescription drugs on the market today directly or indirectly target GPCRs. In this course, we will discuss GPCR signal transduction pathways, GPCR oligomerization and the diseases caused by GPCR dysfunction. We will study the structure and function of rhodopsin, a dim-light photoreceptor and a well-studied GPCR that converts light into electric impulses sent to the brain and leads to vision. We will also discuss how mutations in rhodopsin cause retinal degeneration and congenital night blindness. This course is one of many Advanced Undergraduate Seminars offered by the Biology Department at MIT. These seminars are tailored for students with an interest in using primary research literature to discuss and learn about current biological research in a highly interactive setting. Many instructors of the Advanced Undergraduate Seminars are postdoctoral scientists with a strong interest in teaching.
关 键 词: G蛋白偶联受体; 基因编码; G蛋白偶联受体功能障碍
课程来源: 麻省理工学院公开课
最后编审: 2020-10-21:yumf
阅读次数: 64