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A subgenomic promoter is a promoter added to a virus for a specific heterologous gene, resulting in the formation of mRNA for that gene alone. Many positive-sense RNA viruses produce these subgenomic mRNAs (sgRNA) as one of the common infection techniques used by these viruses and generally transcribe late viral genes.
The promoter region is a prime regulator of transcription. Promoter regions regulate transcription of all genes within bacteria. As a result of their involvement, the sequence of base pairs within the promoter region is significant; the more similar the promoter region is to the consensus sequence, the tighter RNA polymerase will be able to bind.
The left model is of the complex of NF-YC/NF-YB with the CCAAT element from the pro- 2(I) collagen promoter. The DNA backbone is shown as ribbons (purple) with the bases displayed. The two possible locations of the CCAAT box, according to the modeling, have been colored cyan. For the right model of the NF-Y/CCAAT complex.
The Pribnow box (also known as the Pribnow-Schaller box) is a sequence of TATAAT of six nucleotides (thymine, adenine, thymine, etc.) that is an essential part of a promoter site on DNA for transcription to occur in bacteria.
The CAG promoter is a strong synthetic promoter frequently used to drive high levels of gene expression in mammalian expression vectors. [1] [2] CAG promoter was constructed in the lab of Dr Jun-ichi Miyazaki [3] [4] from the following sequences: (C) the cytomegalovirus (CMV) early enhancer element,
Promoter activity is a term that encompasses several meanings around the process of gene expression from regulatory sequences —promoters [2] and enhancers. [3] Gene expression has been commonly characterized as a measure of how much, how fast, when and where this process happens. [ 4 ]
Further research at the late stage of thymocyte development reveals that distal Lck promoter with driven Cre will result in the distal lck gene promoter to drive Cre expression to be limited within innate-like T cells. There is a cell type specific function in innate-like T cells based on the distal lck promoter - driven Cre. [3]
An active enhancer regulatory region of DNA is enabled to interact with the promoter DNA region of its target gene by the formation of a chromosome loop. This can initiate messenger RNA (mRNA) synthesis by RNA polymerase II (RNAP II) bound to the promoter at the transcription start site of the gene. The loop is stabilized by one architectural ...
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