MAPK2 http://identifiers.org/mgd/MGI:1346858 9030612K14Rik|Prkm1|Erk2|MAPK2|p42mapk O Gene protein coding gene Mapk1 + 9030612K14Rik p42mapk genetic mapping Prkm1 Erk2 MGI:1346858 mitogen-activated protein kinase 1