Anti-MEK1 antibodies are used in antigen-specific immunodetection in biological samples. The target MEK1 is a known alias name of the protein mitogen-activated protein kinase kinase 1, encoded by the MAP2K1 gene in humans. This 393-amino acid residue protein is known to be involved in Bergmann glial cell differentiation and chemotaxis, among other biological processes. It is localized to the membrane, nucleus, and cytoplasm of the cell and features acetylated and phosphorylated post-translational modifications. In terms of tissue expression, it is found to be widely expressed, with extremely low levels in the brain. Other synonyms for MEK1 include CFC3 and MAPKK1. Over 2800 citations in the literature describe the use of MEK1 antibodies in research. Western Blot is a widely used application for these antibodies. Immunocytochemistry, Immunofluorescence, and Immunohistochemistry are also common applications.