Angiotensin

Japanese: アンギオテンシン
Angiotensin

Substances that cause renal hypertension. In 1939, IH Page et al. named the blood pressure increasing substance produced by the enzyme renin in the kidneys angiotonin, while E. Braun-Menéndez et al. called the same substance hypertensin, and later the two were unified and named angiotensin. In 1954, it was discovered that there are two types of angiotensin, which were named angiotensin I and angiotensin II. Angiotensinogen, a protein contained in the α2-globulin fraction of serum, is converted to the inactive decapeptide angiotensin I by the proteolytic enzyme renin present in the kidney, and this is converted to the physiologically active octapeptide angiotensin II by a converting enzyme in serum. This angiotensin II is a powerful blood pressure increasing substance and is considered to be the causative substance of renal hypertension. The structure of human angiotensin II is Asp-Arg-Val-Tyr-Ile-His-Pro-Phe. [CAS 1407-47-2]

Source: Morikita Publishing "Chemical Dictionary (2nd Edition)" Information about the Chemical Dictionary 2nd Edition

Japanese:

腎性高血圧の起因物質.1939年,I.H. Pageらは,腎臓に存在する酵素レニンで生じる血圧上昇物質をアンギオトニン(angiotonin)とよび,一方,E. Braun-Menéndezらは,同じ物質をハイパーテンシン(hypertensin)とよんだので,のちに両者を合わせてアンギオテンシンと統一して命名した.1954年にアンギオテンシンは2種類の物質であることが知られ,アンギオテンシンⅠとアンギオテンシンⅡと命名された.血清のα2-グロブリン区分に含まれるタンパク質のアンギオテンシノーゲン(angiotensinogen)は,腎臓に存在するタンパク質分解酵素レニンにより,不活性のデカペプチドのアンギオテンシンⅠになり,これが血清の転換酵素により,生理的に活性なオクタペプチドのアンギオテンシンⅡになる.このアンギオテンシンⅡが,強力な血圧上昇物質で腎性高血圧の起因物質とされている.ヒトのアンギオテンシンⅡの構造は,Asp-Arg-Val-Tyr-Ile-His-Pro-Pheである.[CAS 1407-47-2]

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