A novel mutation Gly603Arg of TMPRSS6 in a Korean female with iron-refractory iron deficiency anemia†‡
2012
Iron-refractory iron deficiency anemia (IRIDA) is a rare hereditary form of IDA with autosomal recessive inheritance. IRIDA is characterized by hypochromic microcytic anemia unresponsive to oral iron treatment, low transferrin saturation, and a high level of iron-regulated hormone hepcidin. The genetic background of IRIDA is mutations in the TMPRSS6 gene encoding matriptase-2 (TMPRSS6) that prevent inactivation of hemojuvelin, an activator of hepcidin transcription. We herein report a Korean female with IRIDA who was compound heterozygous for two mutations in TMPRSS6: a novel missense mutation c.1807G>C (p.Gly603Arg) in the serine protease domain and a known splicing mutation c.863+1G>T (IVS6+1G>T). Pediatr Blood Cancer 2012; 58: 640–642. © 2011 Wiley Periodicals, Inc.
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