Achaete-scute complex

Drosophila melanogaster genes

The achaete-scute complex (AS-C) is a group of four genes in the fruit fly Drosophila melanogaster. These genes encode basic helix-loop-helix transcription factors that have been best studied in their regulation of nervous system development. Because of their role in specifying neuroblast fate, the genes of the AS-C are called proneural genes. However, the AS-C has non-proneural functions, such as specifying muscle and gut progenitors. Homologues of AS-C in other animals, including humans and other vertebrates, have similar functions.

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