Cellular 'garbage disposal' has another job

A subset of protein complexes whose role has long been thought to consist only of chemically degrading and discarding of proteins no longer needed by cells appears to also play a role in sending messages from one nerve cell ...

Initiating DNA repair

To find out what activates SIRT6, the researchers alternately applied chemical inhibitors to human skin cells to determine which proteins were essential in getting the gene to repair the broken DNA strands. They discovered ...

Scientists create natural Alzheimer's-fighting compound in lab

Scientists at Yale University have developed the first practical method to create a compound called huperzine A in the lab. The compound, which occurs naturally in a species of moss found in China, is an enzyme inhibitor ...

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