As Avatar prepares for its first new animated TV series—and a new hero—in over a decade, let's take a look back at just how ...

E1s and E2s first work generically across the cell to activate and prepare ubiquitin for attachment. E3 ligases then ensure that the tag is added to the right protein; as such, hundreds of specific ...

Each cell of the human body contains two meters of DNA. The whole secret lies in the intricate three-dimensional arrangement that allows DNA strands to be efficiently organized and compacted within ...

Cells are constantly on the move, whether in a developing embryo or metastatic cancer. But how do cells adapt to the new ...