[1] Inst Cochin Genet Mol, Dept Biol Cellulaire, F-75014 Paris, France
[2] Inst Cochin Genet Mol, Dept Malad Infect, F-75014 Paris, France
[3] INSERM, U567, F-75014 Paris, France
[4] CNRS, UMR 8104, F-75014 Paris, France
[5] Univ Paris 05, Fac Med Rene Descartes, UMR3, F-75014 Paris, France
[6] Weill Cornell Med Coll, Dept Biochem, New York, NY 10021 USA