中文字幕欧美一区二区_久久精品国产亚洲77777_91在线?清?看_狠狠干妹子_人妻夜夜爽爽88888视频_97综合网

食品伙伴網服務號
 
 
當前位置: 首頁 » 專業英語 » 專業知識 » 正文

受體 Receptor -生物名詞

放大字體  縮小字體 發布日期:2005-05-13


橫跨細胞膜的分子(通常是蛋白質),接受細胞外信號并傳導入細胞內。在藥理學里。受體更通常的是一個藥物靶分子。這樣的受體可以是蛋白質、酶、膜通道或外來病原體的一個區域。膜結合受體一般至少有兩到三個區域:一個接受信號的胞外區域,一個特征如水療法一樣沉浸其中的跨膜區域,一個傳導信號的胞質區域。藥物發現與識別受體結合分子與調節其行為有關。典型的識別分子或者象興奮劑,或者象抑制劑。抑制劑一般是小分子,他們不可逆轉地結合在受體上阻礙其正常功能,而興奮劑可以是小或大分子。當受體是酶時,藥物是典型的模仿自然發生的酶解物的分子,但它不可逆轉地結合在酶上,使其不能發揮作用。


A molecule (usually a protein) that spans a cell membrane and
receives extracellular signals and transmits them into the cell. In pharmacology, a receptor is, more generically, any molecule that is a target for a drug. Thus a receptor may be a protein, enzyme, membrane channel, or a region of a foreign pathogen. Membrane-bound receptors typically have at least two or three domains: an extracellular domain that receives the signal; a membrane-spanning domain that is hydropathic in character (such as the 7-transmembrane alpha-helix domain structure found in many cellular receptors); and a cytoplasmic (effector) domain, that transmits the signal into the cell. Drug discovery is concerned with identifying molecules that bind to a receptor and modulate its behavior in some manner; typically the identifying molecule will behave as either an agonist (a molecule that stimulates the receptor) or as an antagonist (a molecule that inhibits the effect of the naturally occurring agonist of the receptor). Antagonists tend to be small molecules that bind irreversibly to the receptor preventing its normal function, while agonists may be small or large molecules (e.g. peptide or protein hormones). In the case where the receptor is an enzyme, the drugs are typically molecules that mimic the naturally occurring substrate of the enzyme, but that bind to it irreversibly so as to leave it in an inert, non-functional state (the suicide inhibitors).

更多翻譯詳細信息請點擊:http://www.trans1.cn
 
[ 網刊訂閱 ]  [ 專業英語搜索 ]  [ 加入收藏 ]  [ 告訴好友 ]  [ 打印本文 ]  [ 關閉窗口 ] [ 返回頂部 ]
分享:

 

 
推薦圖文
推薦專業英語
點擊排行
 
 
Processed in 0.150 second(s), 17 queries, Memory 0.89 M
51La
主站蜘蛛池模板: 无码动漫性爽xo视频在线 | 亚洲AV无码成人专区 | 国产野精品久久久久久久不卡 | 国产精品久久久亚洲一区 | 无限看片的视频高清在线 | 99精品视频在线看 | 久草片免费福利资源 | 国产精品乱码久久久久 | 爱情不设限免费观看 | 亚洲黄色在线免费观看 | 成人午夜福利视频网址 | 精品欧美无人区乱码毛片 | 免费性色 | 一级一级毛片免费看 | 久久逼逼 | 乱色国内精品视频在线 | 成全免费高清观看在线电视 | 国产一级黄色录像片 | 无码日韩精品一区二区免费 | 看黄免费在线观看 | 久久水蜜桃亚洲AV无码精品 | 无限看片的视频高清在线 | 亚洲国产精品无码一线岛国 | 熟妇人妻无乱码中文字幕真矢织江 | 中文人妻无码一区二区三区 | 国产乱子伦精品无码码专区 | 黄色片免费观看网站 | 亚洲精品永久在线观看 | 国产欧美一区二区精品三级 | 在线精品亚洲一区二区 | 51精品国产人成在线观看 | 亚洲熟女少妇一区二区 | 中国xxxxxxxxx88| 一区二区最新免费视频 | 一女多男两根同时进去性视频 | 小香蕉影院 | 无码人中文字幕 | 久久亚洲精品无码爱剪辑 | 成人一区在线观看 | 无码专区—VA亚洲V天堂 | 9797色|
瀵邦喕淇婃禍宀€娣惍锟�