Author: ["R Andres Floto","Menna R Clatworthy","Karen R Heilbronn","Dalya R Rosner","Paul A MacAry","Angela Rankin","Paul J Lehner","Willem H Ouwehand","Janet M Allen","Nicholas A Watkins","Kenneth G C Smith"]
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Abstract
Dysfunction of receptors for IgG (FcγRs) has been thought to be involved in the pathogenesis of systemic lupus erythematosus (SLE). We show that a recently described SLE-associated polymorphism of FcγRIIb (FcγRIIbT232), encoding a single transmembrane amino acid substitution, is functionally impaired. FcγRIIbT232 is unable to inhibit activatory receptors because it is excluded from sphingolipid rafts, resulting in the unopposed proinflammatory signaling thought to promote SLE.Cite this article
Floto, R., Clatworthy, M., Heilbronn, K. et al. Loss of function of a lupus-associated FcγRIIb polymorphism through exclusion from lipid rafts. Nat Med 11, 1056–1058 (2005). https://doi.org/10.1038/nm1288 