...苷酸 (nine mucleotides)所构成的多腺嘌呤尾(poly-A tail), 也就是所谓的多聚A尾. tw.knowledge.yahoo.com|基于 1 个网页 2. 端加一个尾巴 ...A不要的区域剪掉,5'端加一个帽子(cap),3'端加一个尾巴(poly-A tail),于是就得到了我们需要的一个成熟的mRNA。
2）polyA尾结合蛋白可以招募许多翻译调节因子，对mRNA的翻译起调节作用。3）polyA尾脱腺苷化会沉默翻译，...
两个功能，一，作为信使RNA的保护结构，与五位端帽子类似结构，二，作为未受降解损伤的信使RNA的完整性...
11.真核生物核基因转录生成的RNA前体需要经过修饰加工,在5'-端加上5'cap,在3'-端加上 poly- A tail,之后再通过核孔进入细胞质,完成翻译过程,部分过程如下图所示。 请回答下列问题:基因 A 基因 B 基因C RNA前体3',5'-端修饰tRNA5'cap5'cap加工 poly- A tail poly- A tail(1)合成RNA前体的过程中,...
Adenines,称为多聚 A 尾巴,一个字符串添加到 3' 端。 翻译结果4复制译文编辑译文朗读译文返回顶部 adenines串,称一条多尾巴,增加到3'末端。 翻译结果5复制译文编辑译文朗读译文返回顶部 正在翻译,请等待... 相关内容 aresearch in job design suggests the way the elements in a job are organized can increa...
The poly-A tail is a long chain of adenine nucleotides that is added to a messenger RNA (mRNA) molecule during RNA processing to increase the stability of the molecule. Immediately after a gene in a eukaryotic cell is transcribed, the new RNA molecule undergoes several modifications known as ...
(redirected from Poly(A) tail)Also found in: Encyclopedia. pol·y·ad·e·nyl·a·tion (pol'ē-ad'ĕ-nil-ā'shŭn), 1. The process of formation of poly(adenylic acid). 2. The covalent modification of a macromolecule (for example, mRNA) by the formation of a polyadenylyl ...
Understanding the function of poly(A) tails has been challenging because of difficulties in measuring their lengths in a genome-wide manner. Bartel and colleagues now report a new high-throughput sequencing method, called PAL-seq ('poly(A)-tail profiling by sequencing'), that accurately measures...
Poly(A)-tailprofilingrevealsan embryonicswitchintranslationalcontrol AlexanderO.Subtelny 1,2,3,4 *,StephenW.Eichhorn 1,2,3 *,GraceR.Chen 1,2,3 ,HazelSive 2,3 &DavidP.Bartel 1,2,3 Poly(A)tailsenhancethestabilityandtranslationofmosteukaryoticmessengerRNAs,butdifficultiesingloballymea- suringpoly...
(redirected fromPoly A tail) Medical polyadenylation [‚päl·ē·ə‚den·ə′lā·shən] (cell and molecular biology) The addition of adenine nucleotides to the 3′ end of messenger ribonucleic acid molecules during posttranscriptional modification. ...