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Mol Immunol. 1997 May;34(7):527-33.

The inactivation of the XP-C gene does not affect somatic hypermutation or class switch recombination of immunoglobulin genes.

Author information

1
Department of Molecular Genetics and Cell Biology, University of Chicago, IL 60637, USA.

Abstract

The mechanism of somatic hypermutation of immunoglobulin genes is not known, but appears to be linked to transcription and perhaps DNA repair. In order to determine if global DNA repair or the repair of the nontranscribed DNA strand is required for somatic mutation, we have analysed mice whose XP-C gene was inactivated by homologous recombination. Our study shows that hypermutation occurs in XP-C knockout mice with a normal frequency, suggesting that the XP-C gene product is not required for somatic hypermutation. Furthermore, we found that Ig gene switch recombination also is normal in these mice.

PMID:
9364218
DOI:
10.1016/s0161-5890(97)00064-3
[Indexed for MEDLINE]

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