Anti-MLK4 antibodies enable researchers to detect and measure the MLK4 antigen in biological samples. This target is a reported synonym of the MAP3K21 gene, which encodes mitogen-activated protein kinase kinase kinase 21. This protein is known to function in protein phosphorylation and signal transduction pathways, among other biological roles. The human version of MLK4 has a canonical amino acid length of 1036 residues and a protein mass of 114 kilodaltons, although 3 isoforms have been identified. MLK4 is a member of the STE Ser/Thr protein kinase protein family. Indicated applications for MLK4 antibodies listed below include ELISA, Western Blot, and Immunohistochemistry.