Reports

Expression of high-affinity binding of human immunoglobulin E by transfected cells

Science  21 Apr 1989:
Vol. 244, Issue 4902, pp. 334-337
DOI: 10.1126/science.2523561

Abstract

The receptor with high affinity for immunoglobulin E (IgE) on mast cells and basophils is critical in initiating allergic reactions. It is composed of an IgE-binding alpha subunit, a beta subunit, and two gamma subunits. The human alpha subunit was expressed on transfected cells in the presence of rat beta and gamma subunits or in the presence of the gamma subunit alone. The IgE binding properties of the expressed human alpha were characteristic of receptors on normal human cells. These results now permit a systematic analysis of human IgE binding and a search for therapeutically useful inhibitors of that binding.

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