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Figure 1.
Figure 1 Schematic of the VRR from the zen gene. Dorsal protein
binding sites are shown as hatched rectangles (dl1 -dl3). Sites
AT1 -AT3 contain semi-conserved AT-rich sequences that have been
shown to interact with proteins (dark squares). The Dead ringer
and Cut proteins bind to sites AT2 and AT3. The cognate protein
for site AT1 has not been identified. Binding sites for the
Dorsal switch protein 1 (NRE) and the NTF-1/Elf-1 protein (DRE)
are represented by open and closed diamonds, respectively.
Circles correspond to GC-rich sequences that interact with an as
yet unidentified protein. The displayed region is located -1.17
to -1.35 kb from the start of transcription.
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