Anti-CDC Like Kinase 2 antibodies are used in the immunodetection of the protein encoded by the CLK2 gene. In humans, the canonical protein has a reported length of 499 amino acid residues and a mass of 60.1 kDa. Its subcellular localization is in the nucleus. Alternative splicing is reported to yield 3 different isoforms for this protein. A member of the CMGC Ser/Thr protein kinase protein family, it is known to be involved with protein phosphorylation. Post-translational modifications have been described, including phosphorylation. Other names for this target antigen include dual specificity protein kinase CLK2 and CLK kinase.