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。反馈 收藏
Cis-Acting Elements and Trans-Acting Factors Involved in Cell Type Specific Expression of the Human Apoliprotein AI GeneIn mammals, the gene coding for apolipoprotein AI (apo AI) is expressed predominantly in the liver and the intestine (1). It is also expressed in the human hepatoma cell ...
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...
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,
The flagellar genes of the bacterium Caulobacter crescentus are organized into a regulatory hierarchy that consists of four classes or levels of genes, and expression of these genes is restricted to a discrete interval in the cell cycle that begins just prior to flagellum assembly. This paper summa...
CIS acting elements and transacting proteins in the increased transcription of human chorionic gonadotropin/luteinizing hormone receptor gene in choriocarcinoma cells as compared with normal term pregnancy placentadoi:10.1210/en.137.9.3897Hela Cells
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...
六、以乳糖操纵子(lac operon)为例,说明什么是顺式作用要素(cis-acting element)?什么是反式作用因子(trans-acting factor)?它们各自如何发挥作用?(10分) 答:___ 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...
Finally, a hormone-controlled in vitro transcription system derived from Xenopus liver nuclear extracts was exploited to characterize two additional novel cis -acting elements within the vitellogenin gene B1 promoter. One of them, a negative regulatory element (NRE), is responsible for repression of ...
Our results suggest that a combination of both cis- and trans-acting factors have evolved among the three D. simulans clade species and interact to affect recombination rate.doi:10.1111/j.1420-9101.2012.02578.xM. V. CattaniCorrespondence: Maria Victoria Cattani, Center for Genomics and Systems ...