MITOGEN-ACTIVATED PROTEIN KINASE KINASE KINASE KINASE 4 (EC 2.7.1.37) (MAPK/ERK KINASE KINASE KINASE 4) (MEK KINASE KINASE 4) (MEKKK 4) (HPK/GCK-LIKE KINASE HGK) (NCK INTERACTING KINASE). [Source:SWISSPROT;Acc:O95819]