Affiliation: | 1. Molecular Genetics of Development Unit, Department of Developmental Biology, URA CNRS 2578, Institut Pasteur, 25 rue du Dr. Roux, 75015 Paris, France;2. Genopole, Institut Pasteur, 28 rue du Dr. Roux, 75015 Paris, France;3. Service of Molecular Engineering of Proteins, CEA, 91191 Gif/Yvette, Saclay, France;4. Lymphocyte Development Unit, Department of Immunology, INSERM U668, Institut Pasteur, 25 rue du Dr. Roux, 75015 Paris, France |