Sigma factor: Difference between revisions
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== Structure & Function == | == Structure & Function == | ||
'''Sigma (σ) factor''' is needed for the initiation of RNA transcription. The large and biologically essential protein, RNA polymerase (RNAP), contains one σ-subunit, which binds <scene name='59/591940/Dna_promoter/1'>Promoter Sequences</scene>, located upstream of transcription start sites. | '''Sigma (σ) factor''' is the peoptide subunite needed for the initiation of RNA transcription in prokaryotic organisms. As opposed to eukaryotes, who utilize a variety of proteins to initiate gene transcription, prokaryotes only use the σ-factor. The large and biologically essential protein, RNA polymerase (RNAP), contains one σ-subunit, which binds <scene name='59/591940/Dna_promoter/1'>Promoter Sequences</scene>, located upstream of transcription start sites. | ||
== Disease == | == Disease == | ||
