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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) | ||||
ham | Transcription factor hamlet; Transcription factor that plays a crucial role in external sensory organ (ESO) that elaborates from a single precursor cell (ESOP cell). Mediates the differentiation of lineage branch that generates the internal 'ES' and 'th' cells (external sensory neuron and thecogen cells, respectively) from the IIIB cell. Its absence leads to re- specification of IIIB daughter cells into external tormagen cells (tr cells), or internal multidendritic neurons (MD cells). One of its role in the development of the ESO lineage is to modulate the activity of Notch and PAX2 signals. (990 aa) |