title |
Inhibition of N-terminal His-tagged recombinant Escherichia coli K-12 RNase T exonuclease activity expressed in Escherichia coli BL21-CodonPlus(DE3)-RIPL preincubated for 10 mins followed by [gamma-32P]ATP labelled 11-nucleotide ssDNA substrate addition for 40 mins by PAGE based autoradiography |