期刊名称:Proceedings of the National Academy of Sciences
印刷版ISSN:0027-8424
电子版ISSN:1091-6490
出版年度:1970
卷号:67
期号:2
页码:517-522
DOI:10.1073/pnas.67.2.517
语种:English
出版社:The National Academy of Sciences of the United States of America
摘要:{delta}-Aminolevulinic acid synthetase is induced in chick embryo liver culture by the natural steroid, etiocholanolone, and by the foreign chemical, 3,5-dicarbethoxy-1,4-dihydrocollidine at the level of transcription. Alternatively, inducing chemicals such as allylisopropylacetamide and {gamma}-hexachloro-cyclohexane act primarily at the level of translation. Hemin (Ki = 5 {micro}M) inhibits the induction at the level of translation. In liver cell culture, the half-life of {delta}-aminolevulinic acid synthetase is 3 hr, that of mRNA about 5 hr.