A sigma factor (σ factor) is a protein needed only for initiation of RNA synthesis.
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The sigma factor is a protein that helps RNA polymerase bind to specific DNA sequences, known as promoters, to initiate gene transcription. It plays a crucial role in determining which genes are transcribed and when they are transcribed in a cell.
Sigma factor is a protein that helps RNA polymerase recognize the promoter sequence on DNA during transcription initiation. It plays a key role in determining the specificity of transcription initiation by binding to the promoter region and recruiting RNA polymerase to start transcription at the correct site. Different sigma factors can be used by the cell to direct RNA polymerase to transcribe specific sets of genes in response to different environmental conditions.
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The sigma factor is a protein that helps RNA polymerase bind to the promoter region of a gene during transcription. It plays a crucial role in initiating the process of transcription by guiding RNA polymerase to the correct starting point on the DNA strand.
The sigma factor of RNA polymerase helps to recognize and bind to specific DNA sequences, known as promoters, to initiate the process of transcription. It plays a crucial role in determining which genes are transcribed and when they are transcribed in a cell.
RNA polymerase attaches to the promoter region of the DNA molecule to initiate transcription. The promoter region contains specific sequences where RNA polymerase binds and begins the process of transcribing the DNA into RNA.
Sigma Sigma Rho was created in 1998.