O D4Ertd810e Phc2 Edr2 protein coding gene genetic mapping MGI:1860454 http://identifiers.org/mgd/MGI:1860454 Mph2|Edr2|D130050K19Rik|D4Ertd810e polyhomeotic-like 2 (Drosophila) D130050K19Rik + Gene Mph2