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The Lac Operon
Description
The lac operon mechanism in E. coli bacteria serves as a classic example of gene expression regulation in response to environmental changes. This video demonstrates how the bacterium regulates the production of enzymes required for lactose breakdown based on the presence of the sugar and the availability of glucose, utilizing both the repressor protein and the CAP protein.
Original title
אופרון הלקטוז (lac operon)
מנגנון אופרון הלקטוז בחיידקי אי-קולי (E. coli) מהווה דוגמה קלאסית לבקרה על ביטוי גנים בתגובה לשינויים בסביבה. הסרטון מדגים כיצד החיידק מווסת את ייצור האנזימים לפירוק לקטוז בהתאם לנוכחותו של הסוכר ולזמינות הגלוקוז, תוך שימוש בחלבון דכאן ובחלבון ה-CAP.
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