Various mechanisms have been proposed to explain mutually exclusive splicing of pairs of exons. A paper in this issue of Cell (Graveley, 2005) provides a fascinating insight into the perplexing question of how only one exon at a time is chosen from an array of 48 exons in the Drosophila Dscam gene. Copyright © 2005 by Elsevier Inc.
Smith, C. W. J. (2005, October 7). Alternative splicing - When two’s a crowd. Cell. https://doi.org/10.1016/j.cell.2005.09.010