Patterns of expression of cut, a protein required for external sensory organ development in wild-type and cut mutant Drosophila embryos.

Abstract excerpt

The loss of cut activity in Drosophila results in the transformation of the neurons and support cells of external sensory (es) organs into those of chordotonal (ch) organs. The cut locus encodes a homeo domain-containing protein, which is expressed in the cells of es, but not in ch, organs. We show by Western analyses the presence of two embryonic protein species whose approximate relative molecular masses of 280...

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