How are antibiotics used to inhibit transcription in prokaryotes? Provide examples of such inhibitors.

Antibiotics can inhibit transcription in prokaryotes by targeting specific components of the transcription machinery, preventing the synthesis of RNA. Transcription in prokaryotes is carried out by RNA polymerase, which binds to DNA and synthesizes RNA. Antibiotics interfere with the function of RNA polymerase or other proteins involved in transcription, leading to disruption of bacterial growth and survival.

One of the primary ways antibiotics inhibit transcription is by binding to the RNA polymerase enzyme itself, preventing it from initiating or elongating RNA synthesis. Prokaryotic RNA polymerase is composed of a core enzyme and a sigma factor. The sigma factor helps the core enzyme bind to specific promoter ______ _____ ___ _______ _________ _______.
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