The Drosophila spitz gene encodes a putative EGF-like growth factor involved in dorsal-ventral axis formation and neurogenesis.

Rutledge BJ, Zhang K, Bier E, Jan YN, Perrimon N. The Drosophila spitz gene encodes a putative EGF-like growth factor involved in dorsal-ventral axis formation and neurogenesis. Genes Dev. 1992 Aug; 6(8):1503-17.

1992
http://profiles.ucsf.edu/profile/254269
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Rutledge BJ, Zhang K, Bier E, Jan YN, Perrimon N