Allelic exclusion in B and T lymphopoiesis

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Abstract

The plasticity of the immune system relies on stochastic, i.e. random, decisions as well as on controlled events. V(D)J rearrangement of antigen receptors on B and T cells are mediated through the action of compound elements containing enhancer sequences. These elements function in a developmentally stage-specific and a cell-type-specific manner to attract machineries that demethylate DNA, remodel chromatin structure, and induce V(D)J recombination on one allele preferentially.

Original languageEnglish
Pages (from-to)319-328
Number of pages10
JournalSeminars in Immunology
Volume11
Issue number5
DOIs
StatePublished - Oct 1999

Keywords

  • B cells
  • Immunoglobulin
  • Methylation
  • T cell receptor
  • V(D)J rearrangement

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