鸡miR-17-92基因簇上游A/T富集区启动子活性鉴定与分析
S831.2; 文章采用基因定点突变和报告基因技术作A/T富集区启动子鉴定和转录调控分析,研究鸡miR-17-92基因簇上游A/T富集区是否具有启动子活性.PromPredict预测分析提示miR-17-92基因簇上游-388~-444 bp处可能是启动子区域.转录因子结合位点分析发现,A/T富集区存在3个E2F1潜在结合位点,分别位于miR-17-92基因簇上游-1273 bp(结合位点1)、-1186 bp(结合位点2)和-753 bp(结合位点3)处.报告基因活性分析发现,鸡miR-17-92基因簇上游A/T富集区具有启动子活性,其中miR-17-92基因簇上游-440/-1区域启动子活...
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Published in | 东北农业大学学报 Vol. 50; no. 7; pp. 57 - 67 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | Chinese |
Published |
东北农业大学黑龙江省普通高等学校动物遗传育种与繁殖重点实验室,哈尔滨 150030
2019
东北农业大学农业农村部鸡遗传育种重点实验室,哈尔滨 150030 东北农业大学黑龙江省动物细胞与遗传工程重点实验室,哈尔滨 150030 |
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Abstract | S831.2; 文章采用基因定点突变和报告基因技术作A/T富集区启动子鉴定和转录调控分析,研究鸡miR-17-92基因簇上游A/T富集区是否具有启动子活性.PromPredict预测分析提示miR-17-92基因簇上游-388~-444 bp处可能是启动子区域.转录因子结合位点分析发现,A/T富集区存在3个E2F1潜在结合位点,分别位于miR-17-92基因簇上游-1273 bp(结合位点1)、-1186 bp(结合位点2)和-753 bp(结合位点3)处.报告基因活性分析发现,鸡miR-17-92基因簇上游A/T富集区具有启动子活性,其中miR-17-92基因簇上游-440/-1区域启动子活性最强.共转染分析显示,转录因子E2F1极显著抑制该A/T富集区启动子活性(P<0.01);进一步定点突变分析表明E2F1通过E2F1结合位点1和2抑制A/T富集区启动子活性.报告基因分析发现,与对A/T富集区启动子作用不同,E2F1促进miR-17-92基因簇宿主基因(MIR17HG)启动子活性.文章首次发现鸡miR-17-92基因簇上游存在一个新的转录调控区,对揭示鸡miR-17-92基因簇转录调控具有重要意义. |
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AbstractList | S831.2; 文章采用基因定点突变和报告基因技术作A/T富集区启动子鉴定和转录调控分析,研究鸡miR-17-92基因簇上游A/T富集区是否具有启动子活性.PromPredict预测分析提示miR-17-92基因簇上游-388~-444 bp处可能是启动子区域.转录因子结合位点分析发现,A/T富集区存在3个E2F1潜在结合位点,分别位于miR-17-92基因簇上游-1273 bp(结合位点1)、-1186 bp(结合位点2)和-753 bp(结合位点3)处.报告基因活性分析发现,鸡miR-17-92基因簇上游A/T富集区具有启动子活性,其中miR-17-92基因簇上游-440/-1区域启动子活性最强.共转染分析显示,转录因子E2F1极显著抑制该A/T富集区启动子活性(P<0.01);进一步定点突变分析表明E2F1通过E2F1结合位点1和2抑制A/T富集区启动子活性.报告基因分析发现,与对A/T富集区启动子作用不同,E2F1促进miR-17-92基因簇宿主基因(MIR17HG)启动子活性.文章首次发现鸡miR-17-92基因簇上游存在一个新的转录调控区,对揭示鸡miR-17-92基因簇转录调控具有重要意义. |
Author | 闫晓红 靳艳飞 李辉 王宁 邢天宇 崔婷婷 黄佳新 |
AuthorAffiliation | 东北农业大学农业农村部鸡遗传育种重点实验室,哈尔滨 150030;东北农业大学黑龙江省普通高等学校动物遗传育种与繁殖重点实验室,哈尔滨 150030;东北农业大学黑龙江省动物细胞与遗传工程重点实验室,哈尔滨 150030 |
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Author_FL | CUI Tingting HUANG Jiaxin YAN Xiaohong WANG Ning XING Tianyu LI Hui JIN Yanfei |
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DocumentTitle_FL | Identification and analysis of promoter activity of A/T-rich region upstream of chicken miR-17-92 cluster |
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Title | 鸡miR-17-92基因簇上游A/T富集区启动子活性鉴定与分析 |
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