5e24

Structural highlights

Function

[MALE_ECO57] Involved in the high-affinity maltose membrane transport system MalEFGK. Initial receptor for the active transport of and chemotaxis toward maltooligosaccharides (By similarity). [SUH_DROME] Transcriptional regulator that plays a central role in Notch signaling, a signaling pathway involved in cell-cell communication that regulates a broad spectrum of cell-fate determinations. Binds directly the 5'-GTGRGAR-3' DNA consensus sequence, which is present in the regulatory region of several genes. Required for neurogenesis in imaginal disks. Acts as a transcriptional repressor when it is not associated with Notch proteins. When associated with some Notch protein, it acts as a transcriptional activator that activates transcription of Notch target genes. Specifically binds to the immunoglobulin kappa-type J segment recombination signal sequence. Required for transcription of Sim. Also functions independently of Notch pathway, in the development of the bristle sensory organ precursor cell.^{[1] [2] [3]} [HLES_DROME] Is a potent antagonist of neurogenic gene activity during sensory organ development. The expression of distinct cell fates by the trichogen (shaft) / tormogen (socket) sister cell pair depends on the level of H activity. A certain threshold level of H activity is required, below which both sister cells adopt the tormogen fate.^{[4] [5]}

References

1. ↑ Morel V, Schweisguth F. Repression by suppressor of hairless and activation by Notch are required to define a single row of single-minded expressing cells in the Drosophila embryo. Genes Dev. 2000 Feb 1;14(3):377-88. PMID:10673509
2. ↑ Koelzer S, Klein T. A Notch-independent function of Suppressor of Hairless during the development of the bristle sensory organ precursor cell of Drosophila. Development. 2003 May;130(9):1973-88. PMID:12642500
3. ↑ Schweisguth F, Nero P, Posakony JW. The sequence similarity of the Drosophila suppressor of hairless protein to the integrase domain has no functional significance in vivo. Dev Biol. 1994 Dec;166(2):812-4. PMID:7813798 doi:http://dx.doi.org/10.1006/dbio.1994.1359
4. ↑ Maier D, Stumm G, Kuhn K, Preiss A. Hairless, a Drosophila gene involved in neural development, encodes a novel, serine rich protein. Mech Dev. 1992 Aug;38(2):143-56. PMID:1419850
5. ↑ Bang AG, Posakony JW. The Drosophila gene Hairless encodes a novel basic protein that controls alternative cell fates in adult sensory organ development. Genes Dev. 1992 Sep;6(9):1752-69. PMID:1516831