Comment on

• An antibody-deficiency syndrome due to mutations in the CD19 gene.

  van Zelm MC, Reisli I, van der Burg M, Castaño D, van Noesel CJ, van Tol MJ, Woellner C, Grimbacher B, Patiño PJ, van Dongen JJ, Franco JL. van Zelm MC, et al. N Engl J Med. 2006 May 4;354(18):1901-12. doi: 10.1056/NEJMoa051568. N Engl J Med. 2006. PMID: 16672701
• Inherited and somatic CD3zeta mutations in a patient with T-cell deficiency.

  Rieux-Laucat F, Hivroz C, Lim A, Mateo V, Pellier I, Selz F, Fischer A, Le Deist F. Rieux-Laucat F, et al. N Engl J Med. 2006 May 4;354(18):1913-21. doi: 10.1056/NEJMoa053750. N Engl J Med. 2006. PMID: 16672702