Alternate Sigma Factors Notes: Definitions & Explanations PDF | Download eBooks
Study Alternate Sigma Factors lecture notes PDF with microbiology definitions and explanation to study “What are Alternate Sigma Factors?”. Study alternate sigma factors explanation with microbiology terms to review microbiology course for online degree programs.
Alternate Sigma Factors Definition:
Sigma is the subunit of bacterial RNA polymerase that is required for transcription initiation; alternate sigma factors direct the core RNA polymerase to transcribe distinct sets of inducible genes or operons, and is thereby a mechanism for global regulation.
Prescott's Microbiology 9th Edition by Joanne Willey, Linda Sherwood, Christopher J. Woolverton
Alternate Sigma Factors Notes:
Alternative sigma factors bind the core catalytic core of the RNA polymerase so that different operons and inducible genes are transcribed and is therefore a means of global regulation. This binding also confers the selection of promoter on holoenzyme. Bacterial RNA polymerase consists of a subunit known as sigma, which is needed for the initiation of transcription.
Keep Learning with Microbiology Notes
What is Active Transport?
Active transport is a process in which energy is required to move the molecules across a membrane against the concentration ...
What is Catabolite Repression?
Catabolite repression or carbon catabolite repression is a crucial part of global control system of microorganisms particularly bacteria. Through catabolite ...
What is Allochthonous?
Allochthonous are substances, which are not native in an environment and have been imported in an ecosystem. Allochthonous materials are ...
What is Classical Complement Pathway?
Classical Complement Pathway is the major effector for the antibody action. The classical pathway of complement is triggered when C1 ...
What is Calorie?
Calorie is a unit to measure energy. The gram calorie or the small calorie, denoted as Cal, is the quantity ...
What is Aseptic Technique?
Aseptic technique means utilizing practices and methodology to avoid the pathogenic contamination. It includes applying the strictest guidelines to limit ...