Hoxd3 [Search on AGR]
Mus musculus PHENOTYPE: Mice homozygous for a knock-out allele show partial postnatal lethality, asymmetric rib-sternum attachment, and anterior transformations of the cervical vertebrae I (atlas) and II (axis). Mice homozygous for a different knock-out allele lack the anteriorarch of the atlas and the dens of the axis. [provided by MGI curators]
Mllt3 [Search on AGR]
Mus musculus PHENOTYPE: About 50% of homozygous null mice die perinatally while the remaining 50% become runted and die within two weeks of birth with severe defects of the axial skeleton, including anterior homeotic transformation of the cervical and thoracic regions, a deformed atlas and an extra cervical vertebra. [provided by MGI curators]