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In genetics, a transcription terminator is a section of nucleic acid sequence that marks the end of a gene or operon in genomic DNA during transcription.This sequence mediates transcriptional termination by providing signals in the newly synthesized transcript RNA that trigger processes which release the transcript RNA from the transcriptional complex.
Trait specific genetic use restriction technologies modify a crop in such a way that the genetic enhancement engineered into the crop does not function until the plant is treated with a specific chemical. [7] [12] The chemical acts as the external input, activating the target gene. One difference in T-GURTs is the possibility that the gene ...
Termination signals play an important role in regulating gene expression since they mark the end of a gene transcript and determine which DNA sequences are expressed in the cell. [1] Expression levels of certain genes can be increased by inhibiting signal terminators, known as antitermination , which allows for transcription to continue beyond ...
Among these genes, however, are regulators whose products allow the next set of phage genes to be expressed. One of these types of regulator is an antitermination protein. In the absence of the antitermination protein, RNA polymerase terminates at the terminator. When the antitermination protein is present, it continues past the terminator. [1]
Here, there is no extra protein and the transcript forms its own loop structure. Intrinsic termination thus regulates the level of transcription as well, determining how many Polymerase can transcribe a gene over a given period of time, and can help prevent interactions with neighboring chromosomes. [1]
Terminator (genetics), the end of a gene for transcription Terminator technology , proposed methods for restricting the use of genetically modified plants by causing second generation seeds to be sterile
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In molecular biology, a termination factor is a protein that mediates the termination of RNA transcription by recognizing a transcription terminator and causing the release of the newly made mRNA. This is part of the process that regulates the transcription of RNA to preserve gene expression integrity and are present in both eukaryotes and ...