SLC11A2 and Iron deficiency anemia: Despite the fact that increased transcript levels are induced by iron deficiency, relative amounts of protein are reduced (Oates et al., 2000; Yeh et al., 2000; Ferguson et al., 2003), and the function of residual DMT1 may be altered (Yeh et al., 2000; Touret et al., 2004; Xu et al., 2004).