DNA topology and a minimal set of basal factors for transcription by RNA polymerase II. Cell 1993 ; 73:533 - 40; http://dx.doi.org/ 10.1016/0092-8674(93)90140-L ; PMID: 8490964Luse DS. The RNA polymerase II preinitiation complex: Through what pathway is the complex assembled?
What happens right before RNA polymerase begins to work? What does DNA polymerase do in PCR? Why is DNA polymerase used in PCR? What happens when RNA polymerase reaches the termination signal? Describe the uses of polymerase chain reaction (PCR), and the function of template, primers, and...
How does DNA get turned into RNA? What happens during RNA splicing? What is a RNA virus genome? Why is it called a transfer RNA? What do DNA and RNA have in common? What is an enveloped RNA virus? What is RNA polymerase? What is the process of assembling a protein from RNA?
If the DNA strand shown below is used as a template for RNA polymerase, what would be the sequence of the resultant mRNAfollowing transcription? 5'-CATTCCATAGCATGT-3' A. 5'-UGUACGAUACCUUAC-3' B. 5'-CAUUCCAUAGCAUGU-3' C. 5'-GUAAGGUAUCGUACA-3' D. 5'-ACAUGCUAUGGAAUG-3' 相...
Silent and activated states are each ensured by several self-reinforcing molecular mechanisms that act on chromatin and are mediated by the PcG and TrxG proteins. These include covalent modifications of chromatin, structural changes and modulation of RNA polymerase II activity. Mechanisms of silencing ...
et al. The bromodomain protein Brd4 is a positive regulatory component of P-TEFb and stimulates RNA polymerase II–dependent transcription. Mol. Cell 19, 523–534 (2005). Article CAS PubMed Google Scholar Dey, A., Chitsaz, F., Abbasi, A., Misteli, T. & Ozato, K. The double ...
Members of this group have a dsRNA and replicate in the cytoplasm of the host cell. They have their own polymerase enzyme and therefore do not heavily rely on that of the host.· Class IV viruses - This group includes orthomyxoviruses etc. They have a single-stranded (+) sense RNA ...
These RT-PCR (real-time polymerase chain reaction) tests are much more sensitive than HIV tests used in the past. They can find as few as 20 copies of HIV RNA in a milliliter of blood. Your doctor should use the same HIV viral load test each time because tests made by different manuf...
It involves the assembly of general transcription factors and RNA polymerase II into a functional pre-initiation complex at core promoters. The degree of chromatin compaction controls the accessibility of the transcription machinery to template DNA. Co-activators have critical roles in this process by ...
In the future, if the same virus invades again, the bacterial cell now has a complementary RNA sequence which recruits the Cas nuclease to cut the viral DNA and stop the infection. But with this system in place, how does the viral genome fragment embedded in the bacterial genome not trigger...