1. IPTG Triggers the Transcription of the Lac Operon

    IPTG Triggers the Transcription of the Lac Operon
    Isopropyl β-D-1-thiogalactopyranoside, abbreviated IPTG, is a molecular biology reagent. This compound is used as a molecular mimic of allolactose, a lactose metabolite that triggers transcription of the lac operon.
  2. 19 X-GAL Facts and Uses You Should Know!

    X-gal is an analog of lactose, and therefore may be hydrolyzed by the β-galactosidase enzyme which cleaves the β-glycosidic bond in D-lactose.
  3. Puromycin: Somatic Cell Cloning

    Puromycin N-acetyl transferase gene (pac), of which the gene product catalyzes antibiotic puromycin, an effective inhibitor of protein synthesis, has been widely used as a dominant selection marker in embryonic stem (ES) cell-mediated transgenesis.

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