Identification of a novel mevalonate kinase gene mutation in combination with the common MVK V377I substitution and the low-penetrance TNFRSF1A R92Q mutation

Eur J Hum Genet. 2005 Apr;13(4):510-2. doi: 10.1038/sj.ejhg.5201352.

Abstract

The hyperimmunoglobulinemia D and periodic fever syndrome (HIDS) is an autosomal recessively inherited autoinflammatory disease caused by mutations in the mevalonate kinase (MVK) gene on chromosome 12q24, which lead to a depressed enzymatic activity of mevalonate kinase (MK). TNF-receptor associated periodic syndrome (TRAPS), on the other hand, is the most frequent autosomal dominantly inherited periodic fever syndrome due to mutations in exons 2-4 and 6 of the TNFRSF1A gene on chromosome 12p13.2. We describe a girl with heterozygosity for the common MVK V377I mutation and for a novel T(1132) --> C transition, leading to the exchange of serine (TCC) by proline (CCC) at amino-acid position 378. Interestingly, our patient presented only with mild clinical features typical of HIDS and slightly increased immunoglobulin D levels, but a distinctly diminished MK activity. The girl was also heterozygous for the TNFRSF1A R92Q low-penetrance mutation, which may have significant proinflammatory effects. However, at the time of presentation, the patient had no TRAPS-associated symptoms.

Publication types

  • Case Reports

MeSH terms

  • Amino Acid Substitution
  • Child
  • Familial Mediterranean Fever / enzymology
  • Familial Mediterranean Fever / genetics*
  • Female
  • Humans
  • Hypergammaglobulinemia / genetics*
  • Immunoglobulin D / metabolism
  • Loss of Heterozygosity
  • Mutation / genetics*
  • Penetrance
  • Phosphotransferases (Alcohol Group Acceptor) / genetics*
  • Receptors, Tumor Necrosis Factor, Type I / genetics*

Substances

  • Immunoglobulin D
  • Receptors, Tumor Necrosis Factor, Type I
  • Phosphotransferases (Alcohol Group Acceptor)
  • mevalonate kinase