Anti-TBC1 domain family, member 9B (with GRAM domain) antibodies enable researchers to detect and measure the TBC1 domain family, member 9B (with GRAM domain) antigen in biological samples. This target is a reported synonym of the TBC1D9B gene, which encodes TBC1 domain family member 9B. This protein is known to function in GTPase activation, among other biological roles. The human version of TBC1 domain family, member 9B (with GRAM domain) has a canonical amino acid length of 1250 residues and a protein mass of 140.5 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the membrane of cells and widely expressed in many tissue types. Other names for this target antigen include GRAMD9B and TBC1 domain family, member 9B (with GRAM domain).