Kopytova, D.V., Il'in, Y.V., Nabirochkina, E.N. (2018). Alternative Splicing of the Xmas mRNA Encoding the mRNA Export Protein in Drosophila melanogaster.  Dokl. Biochem. Biophys. 479(1): 87--89.

FBrf0238924

Research paper

It is shown that Drosophila melanogaster has Xmas mRNA whose alternative splicing leads to the formation of three transcripts: Xmas, Xmas-2, and Xmas-1. As a result, three proteins are synthesized: Xmas, Xmas-2, and, presumably, Xmas-1. The size of the Xmas protein is close to the size of its homologue in humans. Adult flies contain large amounts of this protein, whereas in embryos it is absent.