Activation of protein kinase C from B lymphocytes by lipid A
1Instituto de Bioquímica, Facultad de Farmacia, Universidad Complutense, Madrid, Spain.
Abstract:
The effect of lipid A, a residue of the lipopolysaccharide molecule, on protein kinase C from B lymphocytes has been studied. Lipid A activates and promotes the translocation of protein kinase C from the soluble to the particulate membrane fraction in a cell-free system reconstituted with purified enzyme and membranes isolated from B lymphocytes. These results demonstrate that the activating effect of lipopolysaccharide on protein kinase C from B cells is due to the lipid moieties of this molecule.
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