Transverse tubules (T-tubules) play a significant role in muscle contraction. However, the underlying mechanism of their ...

When proteins within the body get tagged with a molecule called ubiquitin, they are essentially marked for destruction. But they can be saved; a deubiquitinase enzyme can remove the ubiquitin, keeping ...

E3 ligases are enzymes that act as molecular "broker" by binding specific target proteins and coordinating the transfer of ubiquitin from an E2 enzyme. As an E3 ligase recognizes only a restricted set ...

Ubiquitin is a small protein consisting of 76 amino acids that binds to lysine residues of substrates, usually by a combination of three enzymes: a ubiquitin-activating enzyme (E1, two types), a ...

Cells must continually adjust their protein composition, which includes protein synthesis as well as degradation. Most ...