MW: 22kDa. Purified by a proprietary chromatographic technique, the major band of target protein with with 95% purity on 12% SDS-PAGE, but this protein had degraded low band. The IgE receptor subunit A(also known as Fce RIA or FceRIA) is a subunit of IgE receptor, present as a transmembrane glycoprotein. IgE receptor is a tetrameric complex consisting of one A, one B and two G subunits on mast cells and basophils. The subunit A is responsible for the binding to IgE, while the G subunit is essent