Mitogen-activated protein kinase kinase kinase kinase 2 XSGKSTHIWA HDLPGLFEQR RLQQQVPLSI PTNRLTQRII PRRFALSTKI PDTKGCLQCR VVRNPYTGAT FLLAALPTSL LLLQWYEPLQ KFLLLKNFSS PLPSPAGMLE PLVLDGKELP QVCVGAEGPE GPGCRVLFHA RPSR