Anti-MAPK interacting serine/threonine kinase 2 antibodies are used for the immunodetection of the protein encoded by the MKNK2 gene. In humans, the canonical protein has a reported length of 465 amino acid residues and a mass of 51.9 kDa. Its subcellular localization is in the nucleus and cytoplasm. Alternative splicing is reported to yield 5 different isoforms for this protein. It is widely expressed across many tissue types. A member of the CAMK Ser/Thr protein kinase protein family, it is a type of serine/threonine-protein kinase that phosphorylates SFPQ/PSF, HNRNPA1 and EIF4E. Post-translational modifications have been described, including phosphorylation. Other names for this target antigen include MNK2, MAP kinase-interacting serine/threonine-protein kinase 2, MAP kinase interacting serine/threonine kinase 2, MAP kinase signal-integrating kinase 2, MAPK signal-integrating kinase 2, and GPRK7. Gene orthologs have been identified in the mouse, rat, bovine, frog, chimpanzee and chicken species.