Recently discovered protein turbocharges gene expression

For many years, scientists have sought to understand what happens when our genes are flipped to the "on" position. Now, scientists at the University of California San Diego and Rutgers University have identified a new protein ...

Cell aging slowed by putting brakes on noisy transcription

Working with yeast and worms, researchers found that incorrect gene expression is a hallmark of aged cells and that reducing such "noise" extends lifespan in these organisms. The team published their findings this month in ...

Cell biologists discover on-off switch for key stem cell gene

Consider the relationship between an air traffic controller and a pilot. The pilot gets the passengers to their destination, but the air traffic controller decides when the plane can take off and when it must wait. The same ...

A small piece of DNA with a large effect on leaf shape

Millions of years ago, some plants in the mustard family made the switch from simple leaves to complex leaves through two tiny tweaks to a single gene. One tweak to a small enhancer sequence gave the gene a new domain of ...

Scientists identify protein that controls leaf growth and shape

In autumn, it is not only the colours that catch the eye, but also the different sizes and shapes of leaves. But what makes leaves of different plants differ so much in their shapes? Scientists at the Max Planck Institute ...

How cells in the nose detect odors

The human nose has millions of olfactory neurons grouped into hundreds of different neuron types. Each of these neuron types expresses only one odorant receptor, and all neurons expressing the same odorant receptor plug into ...

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