血管紧张素I

✍ dations ◷ 2025-11-25 12:30:06 #血管紧张素I
1N9U, 1N9V, 2JP8, 2WXW, 2X0B· hormone activity · hormone activity · protein binding · growth factor activity · acetyltransferase activator activity · type 1 angiotensin receptor binding· extracellular region · extracellular region · extracellular space · extracellular space · extracellular space · soluble fraction· regulation of cell growth · blood vessel development · positive regulation of cytokine production · kidney development · blood vessel remodeling · angiotensin mediated vasoconstriction involved in regulation of systemic arterial blood pressure · renal response to blood flow involved in circulatory renin-angiotensin regulation of systemic arterial blood pressure · regulation of blood volume by renin-angiotensin · renin-angiotensin regulation of aldosterone production · regulation of renal output by angiotensin · regulation of blood vessel size by renin-angiotensin · brain renin-angiotensin system · cellular sodium ion homeostasis · cell-matrix adhesion · G-protein coupled receptor protein signaling pathway · G-protein signaling, coupled to cGMP nucleotide second messenger · activation of phospholipase C activity by G-protein coupled receptor protein signaling pathway coupled to IP3 second messenger · nitric oxide mediated signal transduction · cell-cell signaling · excretion · establishment of blood-nerve barrier · regulation of blood pressure · negative regulation of cell proliferation · response to cold · response to salt stress · positive regulation of activation of JAK2 kinase activity · positive regulation of endothelial cell migration · positive regulation of cardiac muscle hypertrophy · positive regulation of macrophage derived foam cell differentiation · positive regulation of cholesterol esterification · negative regulation of endopeptidase activity · regulation of norepinephrine secretion · positive regulation of phosphatidylinositol 3-kinase cascade · response to muscle activity involved in regulation of muscle adaptation · regulation of vasoconstriction · regulation of proteolysis · extracellular matrix organization · negative regulation of cell growth · peristalsis · positive regulation of cellular protein metabolic process · positive regulation of NAD(P)H oxidase activity · low-density lipoprotein particle remodeling · positive regulation of multicellular organism growth · regulation of cell proliferation · hormone metabolic process · drinking behavior · positive regulation of apoptosis · positive regulation of catalytic activity · positive regulation of MAPKKK cascade · negative regulation of neuron apoptosis · cellular lipid metabolic process · positive regulation of fatty acid biosynthetic process · positive regulation of epidermal growth factor receptor signaling pathway · positive regulation of transcription, DNA-dependent · positive regulation of organ growth · astrocyte activation · positive regulation of fibroblast proliferation · regulation of long-term neuronal synaptic plasticity · smooth muscle cell proliferation · positive regulation of inflammatory response · positive regulation of peptidyl-tyrosine phosphorylation · positive regulation of NF-kappaB transcription factor activity · smooth muscle cell differentiation · negative regulation of nerve growth factor receptor signaling pathway · positive regulation of protein tyrosine kinase activity · positive regulation of branching involved in ureteric bud morphogenesis血管收缩素(Angiotensin),亦称血管紧张素、血管张力素,是一种寡肽类激素,是肾素-血管收缩素系统(renin-angiotensin system)的重要组成部分。血管紧张素能引起血管收缩,升高血压;促进肾上腺皮质释放醛固酮。它也具有很强的致渴作用。血管紧张素的前体是由肝脏合成的一种血清球蛋白:血管紧张素原。血管紧张素最早于20世纪30年代末由美国印第安纳和阿根廷的研究人员分别独立分离,并被分别命名为Angiotonin和Hypertensin,后来被美国克利夫兰诊所和瑞士巴塞尔的汽巴实验室(Ciba Laboratories)描述并合成。血管紧张素原是一种主要由肝脏持续合成并释放入血液循环的α-2球蛋白。它属于丝氨酸蛋白酶抑制物超家族(serine protease inhibitors,serpin),虽然就目前所知它不能抑制任何酶的活性。皮质激素、雌激素、甲状腺素和血管紧张素II可增高血浆血管紧张素原含量。血管紧张素原是肾素的底物。人血管紧张素原包含452个氨基酸残基,而其他物种的血管紧张素原大小有所不同。它的N-端12个氨基酸残基由于关系到其活性而最为重要。血管紧张素Ⅰ由肾素作用于血管紧张素原形成。肾素能催化血管紧张素原亮氨酸(Leu)与缬氨酸(Val)间的肽键水解产生十肽血管紧张素I;血管紧张素Ⅰ基本没有生物学活性,而是作为血管紧张素Ⅱ的前体存在。血管紧张素I经血管紧张素Ⅰ转化酶剪切C-末端两个氨基酸残基而形成血管紧张素Ⅱ。血管紧张素II是一种可通过内分泌、自分泌/旁分泌以及胞内分泌发挥作用的激素。血管紧张素Ⅱ通过血管紧张素酶降解为血管紧张素Ⅲ,其在循环系统的半衰期约为30秒,而在组织中最长可达15至30分钟。相比较血管紧张素Ⅱ而言,血管紧张素Ⅲ(七肽)仍具有40%的升压活性和100%的促醛固酮分泌活性。血管紧张素Ⅳ(六肽)与血管紧张素Ⅲ相似,而活性更低。Template:Angiotensin receptor modulators(英语:Template:Angiotensin receptor modulators)

相关

  • 明胶明胶又称鱼胶或吉利丁(从英文名“Gelatin”译音而来,音译基准为粤语),是以动物皮、骨内的蛋白质即胶原蛋白制成,带浅黄色透明,无味的胶质,主要成分为蛋白质。明胶通常用于食物、药
  • 胰岛素抵抗胰岛素抵抗(英语:insulin resistance),是指脂肪细胞、肌肉细胞和肝细胞对正常浓度的胰岛素产生反应不足的现象,亦即这些细胞需要更高的胰岛素浓度才能对胰岛素产生反应。在脂肪细
  • 降水降水是指在大气中冷凝的水汽以不同方式下降到地球表面的天气现象。大气中的水汽几乎全部集中于对流层中,温度越高,大气可以容纳的水汽含量就越多,反之就越少。一定温度下,当空气
  • 死亡细胞死亡(Cell death)是描述生物细胞永久中止运作生理功能的状态。细胞死亡可能起因于个体计划性的细胞死亡,或是因疾病或创伤导致细胞不可逆的损伤而死亡。Category:Medical a
  • CCR5n/an/an/an/an/an/an/an/an/an/aCCR5(C-C chemokine receptor type 5),中文名:趋化因子受体5或趋化因子C-C亚族受体5,也称为CD195。是白细胞表面的一种蛋白质,因此也称为CCR5蛋白质
  • 丹贝丹贝(tempeh)是一种发源于印尼爪哇的发酵食品,又名天培、天贝等。传统丹贝是接种根霉属(Rhizopus spp.)真菌至煮过的脱皮大豆,再以香蕉叶包覆接种过的大豆,经过一至两天发酵,所得到
  • 百慕大坐标:32°20′N 64°45′W / 32.333°N 64.750°W / 32.333; -64.750面积以下资讯是以2018年估计国家领袖国内生产总值(国际汇率) 以下资讯是以2014年估计人类发展指数 以下资
  • 肥害肥害是由于肥料配制不当,加入过量氮肥或腐熟不充分的有机肥,或根外追肥浓度过高而引起的,使土壤产生盐渍化。
  • 3d5 4s12, 8, 13, 1蒸气压第一:652.9 kJ·mol−1 第二:1590.6 kJ·mol−1 第三:2987 kJ·mol−1 (主条目:铬的同位素铬(拉丁语:Chromium,化学符号:Cr)是一种化学元素,原子序为24,在
  • 健康科学医疗卫生科学(又称:医疗科学、健康科学、保健科学)与应用科学息息相关,旨在运用理工及技术之知识,解决与生物健康有关的问题。除了传统的医学外,此类学科还包括护理、公共卫生等学