Anti-phosphatidylinositol 4-kinase, catalytic, alpha antibodies enable researchers to detect and measure the phosphatidylinositol 4-kinase, catalytic, alpha antigen in biological samples. This target is a reported synonym of the PI4KA gene, which encodes phosphatidylinositol 4-kinase alpha. This protein is known to function in protein phosphorylation and signal transduction pathways, among other biological roles. The human version of phosphatidylinositol 4-kinase, catalytic, alpha has a canonical amino acid length of 2102 residues and a protein mass of 236.8 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the cell membrane and cytoplasm of cells and widely expressed in many tissue types. Other names for this target antigen include GIDID2, PI4K-ALPHA, and PIK4CA.