The pattern and distribution of immunoglobulin VH gene mutations in chronic lymphocytic leukemia B cells are consistent with the canonical somatic hypermutation process.

Abstract excerpt

The overexpanded clone in most B-cell-type chronic lymphocytic leukemia (BCLL) patients expresses an immunoglobulin (Ig) heavy chain variable (V(H)) region gene with some level of mutation. While it is presumed that these mutations were introduced in the progenitor cell of the leukemic clone by the canonical somatic hypermutation (SHM) process, direct evidence of such is lacking. Nucleotide sequences of the Ig...

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