David Goins at Arkansas Matters reports that Responsive Education Solutions, a Texas-based operator of charter schools, has pulled a biology workbook from at least one school it operates in ...

Crystal structures of the Lac repressor, with and without isopropylthiogalactoside (IPTG), and the repressor bound to operator have provided a model for how the binding of the inducer reduces the ...

We present the crystal structure of the TetR homodimer in complex with its palindromic DNA operator at 2.5 Å resolution. Comparison to the structure of TetR in complex with the inducer ...