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Curr Opin Immunol. 2002 Apr;14(2):235-40.

Somatic immunoglobulin hypermutation.

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  • 1Department of Immunology, Imm16, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA. mdiaz@scripps.edu

Abstract

Immunoglobulin hypermutation provides the structural correlate for the affinity maturation of the antibody response. Characteristic modalities of this mechanism include a preponderance of point-mutations with prevalence of transitions over transversions, and the mutational hotspot RGYW sequence. Recent evidence suggests a mechanism whereby DNA-breaks induce error-prone DNA synthesis in immunoglobulin V(D)J regions by error-prone DNA polymerases. The nature of the targeting mechanism and the trans-factors effecting such breaks and their repair remain to be determined.

PMID:
11869898
[PubMed - indexed for MEDLINE]
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