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Cell. 1997 Apr 4;89(1):43-53.

RAG1 and RAG2 form a stable postcleavage synaptic complex with DNA containing signal ends in V(D)J recombination.

Author information

1
Department of Pharmacology, Yale University School of Medicine, New Haven, Connecticut 06520-8011, USA.

Abstract

During V(D)J recombination, RAG1 and RAG2 cleave DNA adjacent to highly conserved recombination signals, but nothing is known about the protein-DNA complexes that exist after cleavage. Using a properly regulated in vitro V(D)J cleavage system, together with nuclease sensitivity, mobility shift, and immunoprecipitation experiments, we provide evidence that a stable complex is formed postcleavage between synapsed recombination signals. This complex includes the proteins RAG1, RAG2, HMG-1 or the closely related HMG-2 protein, and the components of the DNA-dependent protein kinase. The existence of such a stable complex explains a number of in vivo observations and suggests that remodeling of postcleavage synaptic complexes is an important step in the resolution of signal ends in V(D)J recombination.

PMID:
9094713
DOI:
10.1016/s0092-8674(00)80181-6
[Indexed for MEDLINE]
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