Gene expansion and retention leads to a diverse tyrosine kinase superfamily in amphioxus.

Abstract excerpt

Tyrosine kinase (TK) proteins play a central role in cellular behavior and development of animals. The expansion of this superfamily is regarded as a key event in the evolution of the complex signaling pathways and gene networks of metazoans and is a prominent example of how shuffling of protein modules may generate molecular novelties. Using the intron/exon structure within the TK domain (TK intron code) as a...

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