Ewa Sulecka

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The aim of this study was to improve a useful molecular tool—TaqII restriction endonuclease-methyltransferase—by rational protein engineering, as well as to show an application of our novel method of restriction endonuclease activity modulation through a single amino acid change in the NPPY motif of methyltransferase. An amino acid change was introduced(More)
Two restriction-modification systems have been previously discovered in Thermus aquaticus YT-1. TaqI is a 263-amino acid (aa) Type IIP restriction enzyme that recognizes and cleaves within the symmetric sequence 5'-TCGA-3'. TaqII, in contrast, is a 1105-aa Type IIC restriction-and-modification enzyme, one of a family of Thermus homologs. TaqII was(More)
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