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Recent advances in understanding RAG deficiencies.

F1000Res; 82019.
Artigo em Inglês | MEDLINE | ID: mdl-30800289
Recombination-activating genes ( RAG) 1 and RAG2 initiate the molecular processes that lead to lymphocyte receptor formation through VDJ recombination. Nonsense mutations in RAG1/ RAG2 cause the most profound immunodeficiency syndrome, severe combined immunodeficiency (SCID). Other severe and less-severe clinical phenotypes due to mutations in RAG genes are now recognized. The degree of residual protein function may permit some lymphocyte receptor formation, which confers a less-severe clinical phenotype. Many of the non-SCID phenotypes are associated with autoimmunity. New findings into the effect of mutations in RAG1/2 on the developing T- and B-lymphocyte receptor give insight into the development of autoimmunity. This article summarizes recent findings and places the genetic and molecular findings in a clinical context.