Ready-to-use ELISA kits are available for the detection of LYGDI, an alias of the protein, Rho GDP dissociation inhibitor beta. The official gene symbol is ARHGDIB. The protein, with a mass of 23 kDa and length of 201 residues, is reported to be cytoplasmic. It is a member of the Rho GDI family and may be known by other names, including: GDID4, GDIA2, rho-GDI beta, Rho GDP dissociation inhibitor (GDI) beta, Rho GDI 2, and rho GDP-dissociation inhibitor 2, and Ly-GDI.