Rab is a GTP-binding protein family with approximately 200 amino acids and similar to Ras structure. These proteins bind and hydrolyse GTP. It is thought to have a role in vesicle fusion rate control (Rab5 and early endosomes). They exhibit high specificity of vesicle binding .
- ↑ Harvey Lodish, Arnold Berk, S Lawrence Zipursky, Paul Matsudaira, David Baltimore, and James Darnell (2000). Molecular Cell Biology. 4th ed. New York: W.H.Freeman. p.743.