genetic mapping Krox-20 Krox20 early growth response 2 Zfp-25 protein coding gene MGI:95296 O Egr2 NGF1-B|Krox-20|Krox20|Egr-2|Zfp-25 NGF1-B Gene + Egr-2 http://identifiers.org/mgd/MGI:95296