Anti-alp4 antibodies enable researchers to detect and measure the alp4 antigen in biological samples. This target is a reported synonym of the TUBGCP2 gene, which encodes tubulin gamma complex component 2. This protein is known to function in brain development and the cell cycle, among other biological roles. The human version of alp4 has a canonical amino acid length of 902 residues and a protein mass of 102.5 kilodaltons, although 3 isoforms have been identified. It is reported to be localized in the cytoplasm of cells and widely expressed in many tissue types. alp4 is a member of the TUBGCP protein family.