Fig. 3.
Evidence for ongoing mutation in MedB-1 cells.
Seven PCR clones amplified from MedB-1 cells were aligned and compared with the most homologous germline IgVH sequence V4-39 from codons 86 through 92. Sequence homologies between V4-39 and the consensus sequence of the PCR clones are highlighted by asterisks. Dashes designate identities among PCR clones. Clones 3 and 6 show deviations from the consensus sequence in codons 87 and 91, suggesting ongoing somatic mutation.