The protein encoded by this gene is a transcriptional
repressor capable of binding an E-box element either as a homodimer
or as a heterodimer with E2A in vitro. The encoded protein also
forms heterodimers with E2A proteins in vivo. This protein is
capable of inhibiting the transactivation capability of E47, an E2A
protein, in mammalian cells. This gene is a downstream target of
the B-cell receptor signal transduction pathway. [provided by
RefSeq].
