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水稻谷蛋白GluB-4基因启动子克隆及载体构建
引用本文:王伟权,杨翠平,王景雪,梁超,刘莉.水稻谷蛋白GluB-4基因启动子克隆及载体构建[J].华北农学报,2007,22(2):22-25.
作者姓名:王伟权  杨翠平  王景雪  梁超  刘莉
作者单位:1. 广州医学院第一附属医院呼吸疾病研究所,广东,广州,510120
2. 中山大学生命科学学院,有害生物控制及资源利用国家重点实验室,广东,广州,510275
3. 山西大学生命科学与技术学院,山西,太原,030006
摘    要:GluB-4是水稻种子谷蛋白的编码基因,在种子成熟过程中,由GluB-4启动子调控,在胚乳中特异地表达。以水稻基因组DNA为模板,通过PCR扩增技术得到GluB-4启动子片段,序列分析结果表明:获得的启动子片段的大小为1 560 bp,与已报道的该启动子序列相比较,其核苷酸序列同源性为99.8%。该启动子区域含有TATA-box,CAAT-box,GCN4基序,Skn-1基序等胚乳特异表达启动子所必需的正调控元件,同时还含有高水平转录调控因子5UTR Py-rich stretch序列。利用该启动子构建了植物种子特异表达载体pCGB4P,为进一步的研究工作奠定了基础。

关 键 词:水稻  GluB-4基因  启动子  谷蛋白
文章编号:1000-7091(2007)02-0022-04
修稿时间:2007-02-07

Cloning and Constructing of the GluB-4 Promoter from Rice
WANG Wei-quan,YANG Cui-ping,WANG Jing-xue,LIANG Chao,LIU Li.Cloning and Constructing of the GluB-4 Promoter from Rice[J].Acta Agriculturae Boreali-Sinica,2007,22(2):22-25.
Authors:WANG Wei-quan  YANG Cui-ping  WANG Jing-xue  LIANG Chao  LIU Li
Institution:1. Guangzhou Institute of Respiratory Diseases, Department of Respiratory Diseases, First Affiliated Hospital of Guangzhou Medical College, Guangzhou 510120, China; 2.State Key Laboratory for Biocontrol,Sun Yat-sen University, Guangzhou 510275, China;3.School of Life Science and Technology, Shanxi University, Taiyuan 030006, China
Abstract:The GluB-4 promoter was amplified from Oryza sativa genome by polymerase chain reaction and cloned into pGEM-T Easy vector.Sequence analysis showed that the obtained promoter fragment 1 560 nucleotides and showed homology of 99.8% with the reported GluB-4 promoter.Also,the obtained promoter fragment includes TATA-box,CAAT-box and the two cis-regulatory elements,GCN4 motif and Skn-1 motif, which are necessary to mediate endosperm expression of the GluB-4 glutelin gene.The plant expression vector pCGB4P was constructed by the GluB-4 promoter.
Keywords:Oryza sativa  GluB-4 gene  Promoter  Glutelin
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