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Summary of Complex 2, Otx1, and Ptx1 Binding Site Requirements
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Wild-type and mutant oligonucleotides are depicted as used for probes and competitions in EMSA in Figs. 4 and 8 and data not shown. The homeodomain (HD) and SP1/Egr binding sequences are indicated. At right, the ability of each oligonucleotide to bind and compete with complex 2, Otx1, or Ptx1 binding to the LH 121/87 probe is depicted (+++, maximum; +, minimum; and −, no binding).
