分子生物學-05真核轉(zhuǎn)錄-預覽頁
【正文】 ts of multiple repeats of a consensus sequence of 7 amino acids. The sequence is unique to RNA polymerase II. The RNA polymerase activities of mitochondria and chloroplasts are smaller, and resemble bacterial RNA polymerase.,2. Promoter,RNA polymerase I promoter has two sequence components,Core promoter: ~70 bp. UBF1: a single polypeptide, it binds to both regions (GCrich), after which SL1 can bind. RNA pol I then binds to the core promoter. UBF1: SL1: 4 subunits, one subunitTBP interacts with RNA polymerase. SL1 resembles sigma factor.,Deletion analysis shows that the promoter for 5S RNA genes is internal。Chapter 5 . Transcription amp。 the most cellular RNA synthesis. Did not inhibited by aamanitin RNA polymerase II: in nucleoplasm , heterogeneous nuclear RNA (hnRNA) transcription (the precursor for mRNA). inhibited by low concentrations of aamanitin. RNA polymerase III: a minor enzyme activity. in nucleoplasm。 2’Omethyltransferase. cap 2: 1015% of the total capped population.,Poly(A) tial adds ~200 A residues to the free 3′OH end of the mRNA。24.10.2224.10.22Tuesday, October 22, 2024 人生得意須盡歡，莫使金樽空對月。24.10.2224.10.2206:11:1406:11:14October 22, 2024 踏實肯干，努力奮斗。2024年10月22日星期二6時11分14秒06:11:1422 October 2024 好的事情馬上就會到來，一切都是最好的安排。24.10.222024年10月22日星期二6時11分14秒24.10.22,謝謝大
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