以乳糖操纵子(lacoperon)为例,说明什么是顺式作用元件(cis-actingelement),什么是反式作用因子(trans-actingfactor)?它们各自如何发挥作用?答:顺式作用元件是指DNA分子上对基因表达有调节活性的某些特定的调控序列,其活性仅影响与其自身处于同一DNA分子上的基因,这种DNA序列多位于基因旁侧或内含子中,不编码蛋白质。真...
顺式作用元件(cis—actingelement)6.反式作用因子(trans-actingfactor) 相关知识点: 试题来源: 解析 顺式作用元件(cis-actingelement):是指可影响自身基因表达活性的真核DNA序列。根据顺式作用元件在基因中的位置、转录激活作用的性质及发挥作用的方式,可将真核基因的顺式作用元件分为启动子、增强子及沉默子等。
Hirose,T. and Sugiura,M.Cis-acting elements and trans-acting factors for accurate translation of chloroplast psbA mRNAs: development of an in vitro translation system from tobacco chloroplasts.EMBO Journal. 1996Hirose T, Sugiura M (1996) Cis -acting elements and trans -acting factors for accurate...
如上所示:i为反式作用因子,它通过形成阻遏蛋白并结合operator使lac-o不表达,这种阻遏作用可以发生在与i不同的DNA分子上,具有可转移性。p,o为顺式作用要素,其调节作用只发生在与其同一DNA分子的区段上,具有不可转移性。相关知识点: 试题来源: 解析 i p o z y a 反馈...
Cis- and trans-acting elements involved in the regulation of the erythroid promoter of the human porphobilinogen deaminase gene Two cis-acting sequences, recognized by two erythroid-specific trans-acting factors, are involved in the regulation of the erythroid promoter of the human ... V Mignott...
Cis-acting elements and trans-acting factors control transcription. The cis-acting elements include the TATA box, enhancers and other elements et al.()A.正确B.错误的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是专业的大学职业搜题找答案,
We conclude that the transcriptional activity of the nonviral PAI-1 promoter is controlled by the same promoter elements in S. pombe as in mammalian cells. In addition, mammalian trans-acting factors that bind to these promoter elements were shown to have counterparts with conserved DNA-binding ...
We analyzed the tissue specific regulation of the insulin receptor gene in the liver by studying the cis -acting element and trans -acting factor of the human insulin receptor gene in human hepatoma cell line, HepG2 cells. In the chloramphenicol acetyl transferase (CAT) assay with chimeric ...
We analyzed the tissue specific regulation of the insulin receptor gene in the liver by studying the cis-acting element and trans-acting factor of the human insulin receptor gene in human hepatoma cell line, HepG2 cells. In the chloramphenicol acetyl transferase (CAT) assay with chimeric ...
Alternative polyadenylation of MeCP2: influence of cis-acting elements and trans-acting factors Alternative polyadenylation of MeCP2: influence of cis-acting elements and trans-acting factors. RNA Biol. 2010; 7 (3):361–72. doi: 10.4161/rna.7.3... Catherine,M.,Newnham,... - 《Rna Biology...