The Transcription Factors Elf-1 and GATA-1 Bind to Cell-Specific Enhancer Elements of Human High-Affinity IgE Receptor α-Chain Gene
Year: 1999
Type: article
Abstract: Key regulatory regions necessary for the expression of the gene encoding FcepsilonRI alpha-chain, a component of the high-affinity IgE receptor primarily responsible for IgE-dependent allergic response, were investigated. Two regions, -74/-69 and -55/-47, which contained binding motifs for proteins belonging to the Ets family and the GATA family, respectively, were shown to be necessary for the activation of the alpha-chain promoter. Both the regulatory elements enhanced the promoter activity only in alpha-chain-producing cells PT18 and RBL-2H3 (mast cell lines), indicating that the elements required specific trans-acting proteins present in the alpha-chain-producing cells. EMSA using nuclear extracts and in vitro-translated proteins revealed that Elf-1 and GATA-1 bound to the enhancer elements. This is the first report describing the regulation in the expression of the FcepsilonRI alpha-chain.
Source: The Journal of Immunology
Institutions: Asahi Breweries (Japan), Juntendo University
Language: English
Subfield: Molecular Biology
Domain: Life Sciences
Open Access status: bronze
OpenAlex ID: W4313347709