Lack of extensive mutations in the VH5 genes used in common B cell chronic lymphocytic leukemia.

Abstract excerpt

B cell chronic lymphocytic leukemia (CLL) is a malignancy of the CD5+ B cells. Prior studies indicated that CLL B cells generally express immunoglobulin (Ig) VH and VL genes with little or no somatic mutations. However, a recent report indicated that VH251, one of three VH genes belonging to the VH5 subgroup (e.g., VH251, VH32, and VH15), not only is frequently rearranged in this disease, but also has extensive...

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