Tcfe2a protein coding gene E2A Pan1 ALF2 genetic mapping http://identifiers.org/mgd/MGI:98510 E47 E12 Gene O Tcf3 Pan2 A1 bHLHb21 A1|E47|ALF2|E12|Tcfe2a|E2A|bHLHb21|Pan2|Pan1 transcription factor 3 MGI:98510 -