Definition: A guanine nucleotide exchange factor from DROSOPHILA. Sevenless refers to genetic mutations in DROSOPHILA that cause loss of the R7 photoreceptor which is required to see UV light.
SON OF SEVENLESS PROTEINS is also available
Other names SOS Protein, Drosophila; Protein, Drosophila SOS; Drosophila Son of Sevenless Protein; Drosophila SOS Protein; SOS Protein