Figure 2.

Minimal detection of polyacrylamide gel electrophoresis analysis and ethidium bromide staining of monoclonal IgH gene rearrangement. The distinct band consistent with monoclonal IgH gene rearrangement could be detected at concentration as low as 3.125%. Lane 1 = GeneRuler 50 bp DNA ladder marker, Lane 2 = positive control, Lane 3 = negative control, Lane 4-10 = serial dilutions 50%, 25%, 12.5%, 6.25%, 3.125%, 1.56%, and 0.78%, respectively.