RP17 Mekk4 - Map3k4 MAPKKK4 MTK1 O D17Rp17e D17Rp17 Gene protein coding gene mitogen-activated protein kinase kinase kinase 4 http://identifiers.org/mgd/MGI:1346875 MGI:1346875 RP17|MAPKKK4|Mekk4|D17Rp17|Tas|MTK1|D17Rp17e Tas genetic mapping