{"title":"四膜虫体内125i -胰岛素的转换和核内定位。放射自显影研究。","authors":"A K Fülöp, G Csaba","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>The unicellular Tetrahymena first internalized, then partly released the labelled insulin. Insulin-pretreated (imprinted) Tetrahymena cells behaved differently from non-pretreated cells, in that they retained a greater part of internalized insulin in the cytoplasm. Additional exposure to excessive non-labelled (cold) insulin caused a decrease in intracellular labelled insulin retention. Internalized insulin also entered the nucleus of Tetrahymena, where it was found in a heterochromatic localization.</p>","PeriodicalId":76971,"journal":{"name":"Acta morphologica Hungarica","volume":"39 2","pages":"71-7"},"PeriodicalIF":0.0000,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Turnover and intranuclear localization of 125I-insulin in Tetrahymena. An autoradiographic study.\",\"authors\":\"A K Fülöp, G Csaba\",\"doi\":\"\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The unicellular Tetrahymena first internalized, then partly released the labelled insulin. Insulin-pretreated (imprinted) Tetrahymena cells behaved differently from non-pretreated cells, in that they retained a greater part of internalized insulin in the cytoplasm. Additional exposure to excessive non-labelled (cold) insulin caused a decrease in intracellular labelled insulin retention. Internalized insulin also entered the nucleus of Tetrahymena, where it was found in a heterochromatic localization.</p>\",\"PeriodicalId\":76971,\"journal\":{\"name\":\"Acta morphologica Hungarica\",\"volume\":\"39 2\",\"pages\":\"71-7\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1991-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Acta morphologica Hungarica\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta morphologica Hungarica","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Turnover and intranuclear localization of 125I-insulin in Tetrahymena. An autoradiographic study.
The unicellular Tetrahymena first internalized, then partly released the labelled insulin. Insulin-pretreated (imprinted) Tetrahymena cells behaved differently from non-pretreated cells, in that they retained a greater part of internalized insulin in the cytoplasm. Additional exposure to excessive non-labelled (cold) insulin caused a decrease in intracellular labelled insulin retention. Internalized insulin also entered the nucleus of Tetrahymena, where it was found in a heterochromatic localization.
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