Structural Explanation for Allolactose (lac Operon Inducer) Synthesis by lacZ  -Galactosidase and the Evolutionary Relationship between Allolactose Synthesis and the lac Repressor

Structural Explanation for Allolactose (lac Operon Inducer) Synthesis by lacZ  -Galactosidase and the Evolutionary Relationship between Allolactose Synthesis and the lac Repressor