ABSTRACT Constitutive biosynthesis of lipid A via the Raetz pathway is essential for the viability and fitness of Gram-negative bacteria. including Chlamydia trachomatis. Although nearly all of the enzymes in the lipid A biosynthetic pathway are highly conserved across Gram-negative bacteria. the cleavage of the pyrophosphate group of UDP-2. https://www.thewooblers.shop/product-category/beginner-intermediate-2/