How do bacteria avoid wasteful production of unnecessary proteins when their genes are always on? The answer lies in regulating the operon. As trp levels increase, trp binds to trpR, causing a ...
When glucose and lactose are both available, allolactose releases LacI from the operator, allowing binding of the RNA polymerase. However, in the absence of cAMP to permit CRP binding, the polymerase ...
The 92-year-old bacterial geneticist who helped pioneer the study of gene regulation has passed away. A series of rodent experiments showed that even with abundant food and water, personal space is ...
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