These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.
Pubmed for Handhelds
PUBMED FOR HANDHELDS
Search MEDLINE/PubMed
Title: SEF1 binding is important for T cell specific enhancers of genes for T cell receptor-CD3 subunits. Author: Hallberg B, Thornell A, Holm M, Grundström T. Journal: Nucleic Acids Res; 1992 Dec 25; 20(24):6495-9. PubMed ID: 1480471. Abstract: A family of proteins, denoted SL3-3 enhancer factor 1 (SEF1), interacts with DNA sequences in the T cell specific enhancer of SL3-3 murine leukemia virus and in the enhancers of several other viruses. A putative SEF1 binding site was also identified in the T cell specific enhancer of the gene encoding the human T cell antigen receptor (TcR) associated CD3-epsilon polypeptide. In this study we show that the identified sequence is a strong SEF1 binding site, and that purified SEF1 proteins bind specifically to the sequence. We report also that the SEF1 binding site is important for T cell specific activation of transcription by the CD3-epsilon enhancer. We show that SEF1 binding sites are present also in the T cell specific enhancers of other subunits of the TcR-CD3 complex, and that SEF1 proteins appear to play a central role in the T cell specific expression of this set of enhancers.[Abstract] [Full Text] [Related] [New Search]