MITOGEN-ACTIVATED PROTEIN KINASE KINASE KINASE KINASE 5 (EC 2.7.1.37) (MAPK/ERK KINASE KINASE KINASE 5) (MEK KINASE KINASE 5) (MEKKK 5) (KINASE HOMOLOGOUS TO SPS1/STE20) (KHS). [Source:SWISSPROT;Acc:Q9Y4K4]