Question

What fn transacetylases perform in lac operon

Answer 1

Protects the cell from toxins.

Answer 2

The lacA gene in the lac operon encodes the enzyme thiogalactoside transacetylase. This enzyme acetylates thiogalactosides and other metabolic by-products, which are thought to be toxic or inhibitory to the cell. This acetylation process converts them into more water-soluble and less toxic forms, facilitating their excretion and thereby protecting the cell from harm.