请输入您要查询的英文单词:

 

单词 protoporphyrin
释义

protoporphyrin

enUK

pro·to·por·phy·rin

P0618100 (prō′tō-pôr′fə-rĭn)n. A metal-free porphyrin, C34H34N4O4, that combines with ferrous iron to form the heme group in hemoglobin and myoglobin, and with ferric iron to form the hemin group in catalase and some cytochromes.

protoporphyrin

(ˌprəʊtəʊˈpɔːfɪrɪn) n (Biochemistry) a type of porphyrin that, when combined with an iron atom, forms haem, the oxygen-bearing prosthetic group of the red blood pigment haemoglobin

protoporphyrin

enUK

protoporphyrin

 [pro″to-por´fĭ-rin] a porphyrin whose iron complex united with protein occurs in hemoglobin, myoglobin, and certain respiratory pigments. It is accumulated and excreted excessively in the feces in erythropoietic protoporphyria and variegate porphyria.

protoporphyrin

(prō′tō-pôr′fə-rĭn)n. A metal-free porphyrin, C34H34N4O4, that combines with ferrous iron to form the heme group in hemoglobin and myoglobin, and with ferric iron to form the hemin group in catalase and some cytochromes.

protoporphyrin

A porphyrin occurring in the course of the synthesis of HAEMOGLOBIN. Excess of this porphyrin, protoporphyria, causes intense itching, swelling and redness of the skin on exposure to sunlight and leads to a strikingly weatherbeaten appearance.

Protoporphyrin

A precursor molecule to the porphyrin molecule.Mentioned in: Porphyrias
随便看

 

英语词典包含2567994条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2025/2/22 18:42:33