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Updated: Aug 19, 2026

Prediction and Validation of Gene Regulatory Elements Activated During Retinoic Acid Induced Embryonic Stem Cell Differentiation
Published on: June 21, 2016
The lambda5-VpreB1 locus--a model system for studying gene regulation during early B cell development
Pierangela Sabbattini1, Niall Dillon
1Gene Regulation and Chromatin Group, MRC Clinical Sciences Centre, Faculty of Medicine, Imperial College, Hammersmith Campus, Du Cane Road, London W12 ONN, UK. pierangela.sabbattini@csc.mrc.ac.uk
Abstract:
The lambda5 and VpreB genes encode the components of the surrogate light-chain, which forms part of the pre-B cell receptor. In mouse, the lambda5 and VpreB1 genes of mouse are closely linked and coordinately regulated by a locus control region (LCR). Activation of the genes in pro-B cells depends on the combined effects of early B cell factor (EBF) and the E2A factors E12 and E47. Silencing of lambda5 expression in mature B cells occurs through the action of Ikaros on the gene promoter where it may compete for binding of EBF and initiate the formation of a silent chromatin structure.
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