Genetic and Rare Diseases Information Center (GARD)


Other names people use for this condition
  • Interleukin receptor-associated kinase deficiency

IRAK4 deficiency
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IRAK-4 deficiency is a rare inherited primary immunodeficiency that is characterized by severe recurrent pyogenic bacterial infections.  Individuals with IRAK-4 deficiency seem to be particularly susceptible to infections caused by bacteria called Streptococcus pneumoniae. The deficiency is caused by mutations in a gene called IRAK4 (interleukin 1 receptor-associated kinase 4).  [1] The IRAK4 gene provides instructions for making an enzyme that is crucial for protective immunity against specific bacterial infections. [2]

References
  1. Ku CL, von Bernuth H, Picard C, Zhang SY, Chang HC, Yang K et al.. . The Journal of Experimental Medicine. September 24, 2007;:. Available at: http://www.jem.org/cgi/content/full/204/10/2407. June 4, 2008.
  2. Picard C, Puel A, Bonnet M, Ku CL, Bustamante J, Yang K et al.. Pyogenic bacterial infections in humans with IRAK-4 deficiency. Science. March 13, 2003.

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