Ubc9

Ubc9 is a specialized enzyme that plays a key role in a process called SUMOylation, which attaches a small protein named SUMO to other proteins in cells. This modification influences how proteins function, interact, and move within the cell, affecting processes like gene expression, cell growth, and response to stress. Ubc9 specifically acts as an "E2 conjugating enzyme," meaning it helps transfer SUMO from one molecule to its target protein. By regulating these modifications, Ubc9 contributes to maintaining healthy cell function and preventing diseases such as cancer.