Source:http://linkedlifedata.com/resource/umls/id/C0600388
MSH: A mitogen-activated protein kinase subfamily that is widely expressed and plays a role in regulation of MEIOSIS; MITOSIS; and post mitotic functions in differentiated cells. The extracellular signal regulated MAP kinases are regulated by a broad variety of CELL SURFACE RECEPTORS and can be activated by certain CARCINOGENS.,NCI: Class of enzymes that phosphorylate protein substrates at tyrosine or threonine residues.