
RNA polymerase pausing
RNA polymerase pausing refers to a temporary slowdown or halt of the enzyme that copies DNA into RNA during gene transcription. This pause allows for regulation, ensuring proper processing and timing of gene expression. It can occur at specific locations on the DNA, influenced by DNA sequences or cellular signals, and helps coordinate subsequent steps like RNA modification or folding. Pausing provides a controlled checkpoint, preventing errors and enabling the cell to respond appropriately to environmental cues, thus maintaining accurate and efficient gene expression.