| 20471 | Q62231 | SIX1_MOUSE | Homeobox protein SIX1 (Sine oculis homeobox homolog 1) | DISRUPTION PHENOTYPE | Perinatal lethality. Mice show failure in renal organogenesis, a severe reduction of most migratory hypaxial muscles including those of the forelimb, diaphragm and tongue, and severe rib-cage deformation. Besides, mice display craniofacial defects, including loss of inner ear structures. Pax2, Six2 and Sall1 expression is markedly reduced in the metanephric mesenchyme at 10.5 dpc during kidney development. Mice lacking both Six1 and Eya1 show defects in kidney development, complete absence of hypaxial muscle, severe reduction in epaxial muscle and a 5-10-fold by volume smaller pituarity than the wild-type gland. {ECO:0000269|PubMed:12668636, ECO:0000269|PubMed:12783782, ECO:0000269|PubMed:12834866, ECO:0000269|PubMed:14628042, ECO:0000269|PubMed:21884692}. |