Son of Sevenless Protein, Drosophila
Drosophila SOS Protein
Drosophila Son of Sevenless Protein
Protein, Drosophila SOS
SOS Protein, Drosophila
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.