Ras homolog gene family, member B, also known as RHOB, is a protein which in humans is encoded by the RHOB gene. RHOB is a member of the Rho GTP-binding protein family. ==Interactions== RHOB has been shown to interact with CIT, ARHGEF3, ARHGDIG and RHPN2. ... Found on http://en.wikipedia.org/wiki/RHOB