SLC39A14 and Torticollis: Unlike Slc39a14−/− mice, the hepatocyte-specific Slc39a14-knockout mice do not develop torticollis (data not shown), reduced body weight (Figure 4c), or neurological deficits (Figure 4d), suggesting that dysregulated Mn metabolism in non-hepatic tissues contributes to the phenotype in Slc39a14−/− mice.