Anti-EPI64B antibodies enable researchers to detect and measure the EPI64B antigen in biological samples. This target is a reported synonym of the TBC1D10B gene, which encodes TBC1 domain family member 10B. This protein is known to function in GTPase activation, among other biological roles. The human version of EPI64B has a canonical amino acid length of 808 residues and a protein mass of 87.2 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the cytoplasm of cells.