Figure 5From: Complementation between inactive fragments of SssI DNA methyltransferaseIn vivo complementation between M.SssI fragments. Some of the fragments carry N- or C-terminal appendages (see Table 1). The approximate level of plasmid methylation as determined by restriction protection assay is indicated by + signs, and the lack of methylation by – sign. Boxes for untested combinations were left empty.Back to article page