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V gene replacement in T and B lymphocytes: illicit or regimented rearrangement?
1Unité du Développement des Lymphocytes, Institut Pasteur, Paris, France. rgolub@pasteur.fr
Archivum Immunologiae Et Therapiae Experimentalis
|October 10, 2002
Abstract:
Lymphocytes can undergo novel types of secondary genetic rearrangements that alter the specificity of a pre-existing B cell receptor (BCR) or T cell receptor (TCR). V gene replacement is one of them and it replaces an already rearranged V gene segment with an upstream germline V gene segment. This review focuses on the molecular aspect of rearrangement. The role of this mechanism in the immune system is debated.