Western blot analysis of LEF1 over-expressed 293 cell line, cotransfected with LEF1 Validated Chimera RNAi ( Cat # H00051176-R01V ) (Lane 2) or non-transfected control (Lane 1). Blot probed with LEF1 monoclonal antibody (M01), clone 3H5 (Cat # H00051176-M01 ). GAPDH ( 36.1 kDa ) used as specificity and loading control.
LEF1 is a nuclear protein that is expressed in pre-B and T cells. It binds to a functionally important site in the T-cell receptor-alpha (TCRA; MIM 186880) enhancer and confers maximal enhancer activity. LEF1 belongs to a family of regulatory proteins that share homology with high mobility group protein-1 (HMG1; MIM 163905) (Waterman et al., 1991 [PubMed 2010090]; van Genderen et al., 1994 [PubMed 7958926]).[supplied by OMIM