More than one way to produce protein diversity: duplication and limited alternative splicing of an adhesion molecule gene in basal arthropods.

Abstract excerpt

Exon duplication and alternative splicing evolved multiple times in metazoa and are of overall importance in shaping genomes and allowing organisms to produce many fold more proteins than there are genes in the genome. No other example is as striking as the one of the Down syndrome cell adhesion molecule (Dscam) of insects and crustaceans (pancrustaceans) involved in the nervous system differentiation and in the...

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