Merck, L6638-5MG, Lipid A, monophosphoryl from Escherichia coli F583 (Rd mutant)

Biochem/physiol Actions
Lipid A has immunostimulatory adjuvant activity including macrophage, T-cell, and B-cell activation. Research has shown Lipid A has greater Th1 than Th2 stimulation.
Lipid A molecules compose the lipid membrane anchoring core components of endotoxins produced by Gram-negative bacteria. Lipid A molecules induce immune responses. Structually, lipid A molecules are composed of two glucosamine unites with varied, species dependent, fatty acyl chain number and identity and degree of phosphorylation.
Lipid A, monophosphoryl from Escherichia coli F583 may be used in comparative assessment of the antigenicity of specific structures within different LPA molecules and analogues.