Hemochromatosis and severe iron overload associated with compound heterozygosity for TFR2 R455Q and two novel mutations TFR2 R396X and G792R

Acta Haematol. 2006;115(1-2):102-5. doi: 10.1159/000089474.

Abstract

We report three mutations of transferrin receptor 2 (TFR2)--R396X (exon 9; nt 1186C-->T), R455Q (exon 10; nt 1364G-->A) and G792R (exon 18; nt 2374G-->A)--in a man of Scottish descent with hemochromatosis and severe iron overload. He was also heterozygous for the common HFE H63D polymorphism. The patient did not have coding region mutations in HAMP, FPN1, HJV or ALAS2. We conclude that this patient represents another example of hemochromatosis due to mutations of the gene encoding transferrin receptor 2.

Publication types

  • Case Reports
  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Substitution*
  • Exons / genetics*
  • Hemochromatosis / genetics*
  • Hemochromatosis Protein
  • Heterozygote
  • Histocompatibility Antigens Class I / genetics
  • Humans
  • Male
  • Membrane Proteins / genetics
  • Middle Aged
  • Point Mutation*
  • Polymorphism, Single Nucleotide
  • Receptors, Transferrin / genetics*

Substances

  • HFE protein, human
  • Hemochromatosis Protein
  • Histocompatibility Antigens Class I
  • Membrane Proteins
  • Receptors, Transferrin
  • TFR2 protein, human