function:Adapter protein that enhances the efficiency of the MAP kinase cascade. Facilitates the activation of MAPK2.,similarity:Belongs to the MAPKSP1 family.,subunit:Interacts with MAP2K1 and MAPK2. Interacts with MORG1 (By similarity). Heterodimer with MAPBPIP.,
Late endosome membrane ; Peripheral membrane protein ; Cytoplasmic side .
Brain,Dendritic cell,Fetal liver,Liver,Lung