Amino acid replacement: E4K.
Nucleotide substitution: G144A.
G26022029A
G144A
E4K | E(spl)m3-HLH-PA
E4K
E(spl)m3-HLHE4K/Df(3R)BSC751 mutant embryos do not display a significant difference in the number of Ap neurons, as compared with controls.