How cellular machinery labels proteins for degradation

Proteins are molecular work horses in the cell that perform specific tasks, but it is essential that the timing of protein activities is exquisitely controlled. When proteins have fulfilled their tasks, their degradation ...

Researchers discover molecular light switch in photoreceptor cells

How our eyes detect and respond to changes in light intensity is determined by specialized cells in the eye called photoreceptors. In addition to converting light into electrical signals, effectively allowing us to see, rod-shaped ...

New insights into ubiquitin signalling

Scientists at the University of Würzburg have generated new insights into the intricate molecular underpinnings of ubiquitin signaling. Their results may provide new avenues for cancer therapy.

PUB8 modulates early seedling growth of Arabidopsis

In plants, the phytohormone abscisic acid (ABA) plays a vital role in repressing seed germination and subsequent early seedling establishment, and ABA-INSENSITIVE 3 (ABI3) and ABI5 are two essential regulators of these developmental ...

New protein identified in bacterial arsenal

(PhysOrg.com) -- Nearly a billion years ago, bacteria evolved an insidious means of infecting their hosts — a syringe-like mechanism able to inject cells with stealthy hijacker molecules. These molecules, called virulence ...

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