Species Distribution
The Mef2 gene is widely expressed in all branches of eukaryotes from yeast to humans. While drosophila has a single Mef2 gene, vertebrates have four versions of the Mef2 gene (human versions are denoted as MEF2A, MEF2B, MEF2C, and MEF2D), all expressed in distinct but overlapping patterns during embryogenesis through adulthood.
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