protein coding gene O + Raldh1 Ahd2 Ahd-2 E1 http://identifiers.org/mgd/MGI:1353450 Ahd2|Ahd-2|E1|ALDH1|Raldh1 MGI:1353450 Aldh1a1 Gene genetic mapping aldehyde dehydrogenase family 1, subfamily A1 ALDH1