Unwinding of the DNA Helix by
RNA Polymerase
Once the RNA polymerase/sigma factor
complex recognizes the correct promoter, the sigma factor dissociate from the
RNA polymerase and the enzyme begins to unwind the helix of the DNA creating a
region of nonpaired deoxyribonucleotides that serve as a template for RNA synthesis.
GIF Animation of Unwinding of the DNA Helix by RNA Polymerase .jpg by Gary E. Kaiser, Ph.D.
Professor of Microbiology,
The Community College of Baltimore County, Catonsville Campus
This work is licensed under a Creative Commons Attribution 4.0 International License.
Based on a work at https://cwoer.ccbcmd.edu/science/microbiology/index_gos.html..
Last updated: Feb., 2021
Please send comments and inquiries to Dr.
Gary Kaiser