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SPS + A module in the E(spl) HLHmβ genes from honeybee and mosquito. (A) General organization of the SPS and proneural sites upstream of E(spl) bHLH genes in A. mellifora and A. gambiae. (B) Sequences of the SPS + A modules in A. mellifora and A. gambiae E(spl) bHLH genes. Arrows depict transcription start sites. Su(H) sites are in orange and proneural sites are in blue.
