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bcd | Homeotic protein bicoid; Segment polarity protein that provides positional cues for the development of head and thoracic segments. Regulates the expression of zygotic genes, possibly through its homeodomain, and inhibits the activity of other maternal gene products. May also bind RNA. Interacts with Bin1 to repress transcription of bicoid target genes in the anterior tip of the embryo; a process known as retraction. (494 aa) | ||||
opa | Pair-rule protein odd-paired; Transcription factor essential for parasegmental subdivision of the embryo. It is involved in the activation of wingless (wg) in odd parasegments. It is also required for the timely activation of wg in the remaining parasegments and for the timely activation of engrailed (en) in all parasegments; Belongs to the GLI C2H2-type zinc-finger protein family. (609 aa) |