RhoB is a small GTPase protein that plays a crucial role in various cellular processes, including cell growth, differentiation, and cytoskeletal organization. It is part of the Rho family of proteins, which are known for their involvement in regulating the shape and movement of cells. RhoB is particularly important in response to stress signals and can influence cell survival and apoptosis. Research has shown that RhoB is involved in the regulation of endocytosis and exocytosis, processes that control the uptake and release of substances in cells. Additionally, it has been implicated in cancer biology, where its expression levels can affect tumor progression and response to therapies. Understanding RhoB's functions may provide insights into potential therapeutic targets for various diseases.