Protein hairless; 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.

Groucho (gro) encodes a global developmental co-repressor in conjunction with manifold DNA-binding repressor partner proteins, which tether it to target promoters. It functions downstream of key signaling pathways such as Wg/Wnt and Dpp/TGF-beta. Notably, phosphorylation of the product of gro in response to MAPK activation weakens its repressor capacity.

Protein hairless; 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.

Numb (numb) encodes a membrane-associated inhibitor of Notch signaling. It controls neuroblast and sense organ precursor asymmetric division. It is asymmetrically localized during mitosis and segregates exclusively to one of two daughter cells.

Protein serrate; Acts as a ligand for Notch (N) receptor. Essential for proper ectodermal development. Serrate represents an element in a network of interacting molecules operating at the cell surface during the differentiation of certain tissues.

Fringe glycosyltransferase; Glycosyltransferase involved in the elongation of O-linked ligands to activate Notch signaling. Possesses fucose-specific beta- 1,3-N-acetylglucosaminyltransferase activity; extends the O-linked fucose on the Notch EGF repeats. Boundary-specific cell-signaling molecule that is responsible for dorsal-ventral cell interactions during wing development.

Protein serrate; Acts as a ligand for Notch (N) receptor. Essential for proper ectodermal development. Serrate represents an element in a network of interacting molecules operating at the cell surface during the differentiation of certain tissues.

Groucho (gro) encodes a global developmental co-repressor in conjunction with manifold DNA-binding repressor partner proteins, which tether it to target promoters. It functions downstream of key signaling pathways such as Wg/Wnt and Dpp/TGF-beta. Notably, phosphorylation of the product of gro in response to MAPK activation weakens its repressor capacity.

Protein serrate; Acts as a ligand for Notch (N) receptor. Essential for proper ectodermal development. Serrate represents an element in a network of interacting molecules operating at the cell surface during the differentiation of certain tissues.

Numb (numb) encodes a membrane-associated inhibitor of Notch signaling. It controls neuroblast and sense organ precursor asymmetric division. It is asymmetrically localized during mitosis and segregates exclusively to one of two daughter cells.

Achaete-scute complex protein T5; Achaete (ac) encodes a BHLH transcription factor that interacts antagonistically with the Notch signaling pathway to promote neural precursor formation. Its major role is in nervous system development.

Groucho (gro) encodes a global developmental co-repressor in conjunction with manifold DNA-binding repressor partner proteins, which tether it to target promoters. It functions downstream of key signaling pathways such as Wg/Wnt and Dpp/TGF-beta. Notably, phosphorylation of the product of gro in response to MAPK activation weakens its repressor capacity.

Achaete-scute complex protein T5; Achaete (ac) encodes a BHLH transcription factor that interacts antagonistically with the Notch signaling pathway to promote neural precursor formation. Its major role is in nervous system development.

Numb (numb) encodes a membrane-associated inhibitor of Notch signaling. It controls neuroblast and sense organ precursor asymmetric division. It is asymmetrically localized during mitosis and segregates exclusively to one of two daughter cells.

Achaete-scute complex protein T5; Achaete (ac) encodes a BHLH transcription factor that interacts antagonistically with the Notch signaling pathway to promote neural precursor formation. Its major role is in nervous system development.

Achaete-scute complex protein T4; AS-C proteins are involved in the determination of the neuronal precursors in the peripheral nervous system and the central nervous system. Also involved in sex determination and dosage compensation.

Segment polarity protein dishevelled; Required to establish coherent arrays of polarized cells and segments in embryos. Plays a role in wingless (wg) signaling, possibly through the reception of the wg signal by target cells and subsequent redistribution of arm protein in response to that signal in embryos. This signal seems to be required to establish planar cell polarity and identity.

Protein deltex; Regulator of Notch signaling, a signaling pathway involved in cell-cell communications that regulates a broad spectrum of cell-fate determinations. Mainly acts as a positive regulator of Notch, but it may also act as a negative regulator, depending on the developmental and cell context. Mediates the antineural activity of Notch. May function as a ubiquitin ligase protein in the Notch pathway. Belongs to the Deltex family.

Segment polarity protein dishevelled; Required to establish coherent arrays of polarized cells and segments in embryos. Plays a role in wingless (wg) signaling, possibly through the reception of the wg signal by target cells and subsequent redistribution of arm protein in response to that signal in embryos. This signal seems to be required to establish planar cell polarity and identity.

Groucho (gro) encodes a global developmental co-repressor in conjunction with manifold DNA-binding repressor partner proteins, which tether it to target promoters. It functions downstream of key signaling pathways such as Wg/Wnt and Dpp/TGF-beta. Notably, phosphorylation of the product of gro in response to MAPK activation weakens its repressor capacity.

Segment polarity protein dishevelled; Required to establish coherent arrays of polarized cells and segments in embryos. Plays a role in wingless (wg) signaling, possibly through the reception of the wg signal by target cells and subsequent redistribution of arm protein in response to that signal in embryos. This signal seems to be required to establish planar cell polarity and identity.

Numb (numb) encodes a membrane-associated inhibitor of Notch signaling. It controls neuroblast and sense organ precursor asymmetric division. It is asymmetrically localized during mitosis and segregates exclusively to one of two daughter cells.

Protein deltex; Regulator of Notch signaling, a signaling pathway involved in cell-cell communications that regulates a broad spectrum of cell-fate determinations. Mainly acts as a positive regulator of Notch, but it may also act as a negative regulator, depending on the developmental and cell context. Mediates the antineural activity of Notch. May function as a ubiquitin ligase protein in the Notch pathway. Belongs to the Deltex family.

Segment polarity protein dishevelled; Required to establish coherent arrays of polarized cells and segments in embryos. Plays a role in wingless (wg) signaling, possibly through the reception of the wg signal by target cells and subsequent redistribution of arm protein in response to that signal in embryos. This signal seems to be required to establish planar cell polarity and identity.

Fringe glycosyltransferase; Glycosyltransferase involved in the elongation of O-linked ligands to activate Notch signaling. Possesses fucose-specific beta- 1,3-N-acetylglucosaminyltransferase activity; extends the O-linked fucose on the Notch EGF repeats. Boundary-specific cell-signaling molecule that is responsible for dorsal-ventral cell interactions during wing development.

Protein serrate; Acts as a ligand for Notch (N) receptor. Essential for proper ectodermal development. Serrate represents an element in a network of interacting molecules operating at the cell surface during the differentiation of certain tissues.

Groucho (gro) encodes a global developmental co-repressor in conjunction with manifold DNA-binding repressor partner proteins, which tether it to target promoters. It functions downstream of key signaling pathways such as Wg/Wnt and Dpp/TGF-beta. Notably, phosphorylation of the product of gro in response to MAPK activation weakens its repressor capacity.

Protein hairless; 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.

Groucho (gro) encodes a global developmental co-repressor in conjunction with manifold DNA-binding repressor partner proteins, which tether it to target promoters. It functions downstream of key signaling pathways such as Wg/Wnt and Dpp/TGF-beta. Notably, phosphorylation of the product of gro in response to MAPK activation weakens its repressor capacity.

Protein serrate; Acts as a ligand for Notch (N) receptor. Essential for proper ectodermal development. Serrate represents an element in a network of interacting molecules operating at the cell surface during the differentiation of certain tissues.

Groucho (gro) encodes a global developmental co-repressor in conjunction with manifold DNA-binding repressor partner proteins, which tether it to target promoters. It functions downstream of key signaling pathways such as Wg/Wnt and Dpp/TGF-beta. Notably, phosphorylation of the product of gro in response to MAPK activation weakens its repressor capacity.

Achaete-scute complex protein T5; Achaete (ac) encodes a BHLH transcription factor that interacts antagonistically with the Notch signaling pathway to promote neural precursor formation. Its major role is in nervous system development.

Groucho (gro) encodes a global developmental co-repressor in conjunction with manifold DNA-binding repressor partner proteins, which tether it to target promoters. It functions downstream of key signaling pathways such as Wg/Wnt and Dpp/TGF-beta. Notably, phosphorylation of the product of gro in response to MAPK activation weakens its repressor capacity.

Segment polarity protein dishevelled; Required to establish coherent arrays of polarized cells and segments in embryos. Plays a role in wingless (wg) signaling, possibly through the reception of the wg signal by target cells and subsequent redistribution of arm protein in response to that signal in embryos. This signal seems to be required to establish planar cell polarity and identity.

Groucho (gro) encodes a global developmental co-repressor in conjunction with manifold DNA-binding repressor partner proteins, which tether it to target promoters. It functions downstream of key signaling pathways such as Wg/Wnt and Dpp/TGF-beta. Notably, phosphorylation of the product of gro in response to MAPK activation weakens its repressor capacity.

Numb (numb) encodes a membrane-associated inhibitor of Notch signaling. It controls neuroblast and sense organ precursor asymmetric division. It is asymmetrically localized during mitosis and segregates exclusively to one of two daughter cells.

Groucho (gro) encodes a global developmental co-repressor in conjunction with manifold DNA-binding repressor partner proteins, which tether it to target promoters. It functions downstream of key signaling pathways such as Wg/Wnt and Dpp/TGF-beta. Notably, phosphorylation of the product of gro in response to MAPK activation weakens its repressor capacity.

Achaete-scute complex protein T4; AS-C proteins are involved in the determination of the neuronal precursors in the peripheral nervous system and the central nervous system. Also involved in sex determination and dosage compensation.

Numb (numb) encodes a membrane-associated inhibitor of Notch signaling. It controls neuroblast and sense organ precursor asymmetric division. It is asymmetrically localized during mitosis and segregates exclusively to one of two daughter cells.

Protein hairless; 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.