Kinin Peptide Receptors that Influence Mosquito Diuresis

影响蚊子利尿的激肽受体

• 批准号: 9419990
• 负责人: Patricia Pietrantonio
• 金额: $ 27.8万
• 依托单位: Texas A&M Research Foundation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-04-15 至 1999-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9419990&HistoricalAwards=false
• 关键词: Kinin; Peptide; Receptors; Influence; Mosquito

9419990 Hayes This project is basic biological research has practical implications for improving the human condition. The cells that compose an animal must communicate with each other to coordinate their actions to make the individual functional as an organism. There is a fundamental molecular language that exists for cells to "talk" with one another. The "words and sentences" of that language are different molecules and one of the most often used types of molecules are the peptides. These are small fragments of molecules called proteins that are the direct products of gene expression. The "ears" that cells have to hear the molecular language are called receptors. Rather than using human or vertebrate subjects as a model for our research, Dr. Hayes has turned to a pest that plagues humans from their beginning, the mosquito. The female mosquito must consume two-and-a-half times her body weight in blood to have the protein to make eggs. During this feeding, she must rapidly eliminate the massive weight of the excess salt and water not needed for making eggs. The brain, the nervous system, the "crop", the "stomach", the "kidneys", the "intestines", and the rectum must "talk" and coordinate to keep the animal alive and deal with this challenge. Some of the molecular messenger peptides that are used allow the cells of these tissues to "talk" with one another. Analogs of these peptides will be used to understand the parts and shapes of the molecules that carry these messages. This understanding will be used to design and make molecular tools to specifically tag the receptors. The molecular tools, called photoaffinity labels, will also be used to isolate genes that code for the receptor proteins for structure determination. Knowing the important structures for the "message" (i.e. the peptide) and the "ears" (i.e. the receptor) are critical to break the general code for communication between cells. Understanding the general aspects of the language is already providing a foundation f or the design of human and veterinary pharmaceuticals, plus future, effective, environmentally safe pesticides that do not harm human beings. ***

小行星9419990 该项目是基础生物学研究，对改善人类状况具有实际意义。 组成动物的细胞必须相互沟通，协调它们的行动，使个体作为一个有机体发挥作用。 有一种基本的分子语言存在于细胞之间，用于相互“交谈”。 这种语言的“单词和句子”是不同的分子，最常用的分子类型之一是肽。 这些小分子片段被称为蛋白质，是基因表达的直接产物。 细胞必须听到分子语言的“耳朵”被称为受体。 海斯博士没有使用人类或脊椎动物作为我们研究的模型，而是转向了一种从一开始就困扰人类的害虫，蚊子。 雌蚊必须消耗两倍半体重的血液才能获得产卵所需的蛋白质。 在此期间，她必须迅速消除大量的多余的盐和水的重量不需要鸡蛋。 大脑、神经系统、“庄稼”、“胃”、“肾”、“肠”和直肠必须“交谈”和协调，以保持动物的生存并应对这一挑战。 一些使用的分子信使肽允许这些组织的细胞彼此“交谈”。 这些肽的类似物将用于理解携带这些信息的分子的部分和形状。 这种理解将用于设计和制造分子工具来特异性标记受体。 分子工具，称为光亲和标记，也将用于分离基因，编码受体蛋白质的结构确定。 了解“信息”（即肽）和“耳朵”（即受体）的重要结构对于破解细胞间通信的一般密码至关重要。 了解语言的一般方面已经为人类和兽医药物的设计提供了基础，以及未来，有效，环境安全的杀虫剂，不伤害人类。 ***