IPTG,無動物(無二惡烷)(1 g)產(chǎn)品是Dioxane free. Induces β-galactosidase activity in many bacteria. Functioning as a lac analog, IPTG induces β -galactosidase activity by binding to and inhibiting the lac repressor.and altering its conformation, which prevents the repression of the β-galactosidase coding gene lacZ.