2.7.7.31 - 2.7.7.31 expressed in Escherichia coli BL21(DE3) cells 2.7.7.31 expressed in Escherichia coli TOP10 F' cells 2.7.7.31 expression in Escherichia coli 2.7.7.31 expression in Escherichia coli and in 293T cell 2.7.7.31 transfection of U2OS cell