Fig. 3

CyDye fluorescent Western blots. a HeLa cell protein lysates present in unpurified and unbound lysate fractions probed with primary antibodies anti-GFP and anti-GAPDH and with secondary antibodies goat-anti-rabbit IgG Cy5 and goat-anti-mouse IgG Cy3. b Purified GFP-tagged DNMT1 protein (DNMT1 225Â kDa) and GFP (27Â KDa) and DNMT1 variants generated by site-directed mutagenesis. The GFP bands in the fusion protein lanes in (b) likely represent cleavage products of the purified fusion protein