英语词汇“porphobilin”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	porphobilin
释义	porphobilin Biochem.\|pɔːfəʊˈbaɪlɪn\| [a. G. porphobilin (Waldenström & Vahlquist 1939, in Zeitschr. f. physiol. Chem. CCLX. 191), f. porph-yrie porphyria + -o + L. bīl-is bile: see -in¹.] Any of a group of red-brown pigments derived from porphobilinogen. 1939Chem. Abstr. XXXIII. 8777/1 Boiling in acid destroys I by conversion to a red porphobilin (II) with a mol. wt. of 750 to 800.1952Science 2 May 496/2 Solutions of porphobilinogen obtained by the above method, after having been acidified to pH 4·0 and boiled for 30 min, gave rise only to porphobilin, a dark-brown pigment without characteristic absorption spectrum or any porphyrin characteristics.1964A. White et al. Princ. Biochem. (ed. 3) xlii. 793 The urine darkens markedly on standing, because of the conversion of abnormal quantities of porphyrinogens and other heme precursors into porphyrins, porphobilins, and other unidentified pigments.
随便看	micro-crystal microcrystalline microcrystallitic microcrystallogeny microcyclic microcyst microcyte microcythæmia microdactylous microdentism microdermabrasion microdermatous micro-detector microdiorite microdissect microdissection microdot microdrive microearthquake micro-economics micro-electric microelectronics micro-electrophoresis microelement microencapsulation

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