A cis-acting sequence, located at -450 in the promoter of the human interferon-inducible gene 6-16, binds constitutively to a nuclear protein and decreases the expression of a reporter interferon-inducible promoter.
{"title":"A cis-acting sequence, located at -450 in the promoter of the human interferon-inducible gene 6-16, binds constitutively to a nuclear protein and decreases the expression of a reporter interferon-inducible promoter.","authors":"Y Chernajovsky, H M Kirby-Sanders","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>An interferon-inducible synthetic promoter was constructed with oligonucleotides which correspond to two regions of the promoter of the human interferon-inducible gene 6-16 that interact in-vitro with nuclear proteins. Firstly, we cloned a direct repeat sequence that was necessary for interferon regulation and that interacted with a 55 kilodalton nuclear protein. 5' to the direct repeat we introduced a 45 bp long oligonucleotide located at -450 in the native 6-16 promoter that interacted in-vitro with an 80 kilodalton nuclear protein. Expression after transfection of these plasmids showed that the direct repeat is necessary for interferon-inducible control and the -450 oligonucleotide by itself has no effect on transcriptional activity while in conjunction with the direct repeat it decreased the basal and interferon-inducible transcriptional activity of the reporter promoter in human cells.</p>","PeriodicalId":18130,"journal":{"name":"Lymphokine research","volume":"9 2","pages":"199-212"},"PeriodicalIF":0.0000,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Lymphokine research","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
An interferon-inducible synthetic promoter was constructed with oligonucleotides which correspond to two regions of the promoter of the human interferon-inducible gene 6-16 that interact in-vitro with nuclear proteins. Firstly, we cloned a direct repeat sequence that was necessary for interferon regulation and that interacted with a 55 kilodalton nuclear protein. 5' to the direct repeat we introduced a 45 bp long oligonucleotide located at -450 in the native 6-16 promoter that interacted in-vitro with an 80 kilodalton nuclear protein. Expression after transfection of these plasmids showed that the direct repeat is necessary for interferon-inducible control and the -450 oligonucleotide by itself has no effect on transcriptional activity while in conjunction with the direct repeat it decreased the basal and interferon-inducible transcriptional activity of the reporter promoter in human cells.