STE20 family
PAK1 PAK3 PAK2 PAK4 PAK5 PAK6 OSR1 PASK/SPAK LOK SLK MASK Mst3 SOK1 Mst2 Mst1 KHS1/GCKR GCK HPK1 MINK NIK Class III myosin NRK/NESK TAO1 PSK1/TAO2 JIK
Reference : The Ste20 group kinases as regulators of MAP kinase cascades,Ippeita Dan, Norinobu M.Watanabe and Akihiro Kusumi, TRENDS in Cell Biology May 2001, Vol. 11,NO. 5, 220-230.