A-kinase anchor protein 200; Scaffolding protein involved in the regulation of PKA signaling and anchoring to the actin cytoskeleton integrating signals propagated by cAMP, diacylglycerol and calcium. Contributes to the maintenance and regulation of cytoskeletal structures in germline via PKA-mediated signaling. As part of ethanol response in the glia, mediates ethanol-induced structural remodeling of actin cytoskeleton and perineurial membrane topology by anchoring PKA to the membrane of perineurial glia. In specific tissues such as eye and thorax, promotes N/Notch protein stability b [...]

Protein Notchless; Plays a role in regulating Notch activity. Belongs to the NLE1/RSA4 family.

RT07140p1; Notch binding. It is involved in the biological process described with: cell communication.

Weary, isoform B; Weary (wry) encodes a ligand for the receptor encoded by N. It is involved in the Notch signaling pathway and normal heart function.

Neurogenic locus protein delta; Acts as a ligand for Notch (N) receptor. Essential for proper differentiation of ectoderm. Dl is required for the correct separation of neural and epidermal cell lineages. Fringe (fng) acts in the Golgi to determine the type of O-linked fucose on the EGF modules in N, altering the ability of N to bind with Delta (Dl). O-fut1 also has a role in modulating the interaction.

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.

Neurogenic locus protein delta; Acts as a ligand for Notch (N) receptor. Essential for proper differentiation of ectoderm. Dl is required for the correct separation of neural and epidermal cell lineages. Fringe (fng) acts in the Golgi to determine the type of O-linked fucose on the EGF modules in N, altering the ability of N to bind with Delta (Dl). O-fut1 also has a role in modulating the interaction.

E3 ubiquitin-protein ligase Su(dx); E3 ubiquitin-protein ligase which accepts ubiquitin from an E2 ubiquitin-conjugating enzyme in the form of a thioester and then directly transfers the ubiquitin to targeted substrates. Down-regulates Notch/N signaling pathway, probably by promoting Notch ubiquitination, endocytosis and degradation. Involved in wing growth and leg joint formation.

E3 ubiquitin-protein ligase Nedd-4; Essential E3 ubiquitin-protein ligase which accepts ubiquitin from an E2 ubiquitin-conjugating enzyme in the form of a thioester and then directly transfers the ubiquitin to targeted substrates. Down- regulates Notch/N signaling pathway by promoting Notch ubiquitination, endocytosis and degradation.

E3 ubiquitin-protein ligase Su(dx); E3 ubiquitin-protein ligase which accepts ubiquitin from an E2 ubiquitin-conjugating enzyme in the form of a thioester and then directly transfers the ubiquitin to targeted substrates. Down-regulates Notch/N signaling pathway, probably by promoting Notch ubiquitination, endocytosis and degradation. Involved in wing growth and leg joint formation.

E3 ubiquitin-protein ligase Nedd-4; Essential E3 ubiquitin-protein ligase which accepts ubiquitin from an E2 ubiquitin-conjugating enzyme in the form of a thioester and then directly transfers the ubiquitin to targeted substrates. Down- regulates Notch/N signaling pathway by promoting Notch ubiquitination, endocytosis and degradation.

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.

E3 ubiquitin-protein ligase Nedd-4; Essential E3 ubiquitin-protein ligase which accepts ubiquitin from an E2 ubiquitin-conjugating enzyme in the form of a thioester and then directly transfers the ubiquitin to targeted substrates. Down- regulates Notch/N signaling pathway by promoting Notch ubiquitination, endocytosis and degradation.

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 Notchless; Plays a role in regulating Notch activity. Belongs to the NLE1/RSA4 family.

A-kinase anchor protein 200; Scaffolding protein involved in the regulation of PKA signaling and anchoring to the actin cytoskeleton integrating signals propagated by cAMP, diacylglycerol and calcium. Contributes to the maintenance and regulation of cytoskeletal structures in germline via PKA-mediated signaling. As part of ethanol response in the glia, mediates ethanol-induced structural remodeling of actin cytoskeleton and perineurial membrane topology by anchoring PKA to the membrane of perineurial glia. In specific tissues such as eye and thorax, promotes N/Notch protein stability b [...]

Protein Notchless; Plays a role in regulating Notch activity. Belongs to the NLE1/RSA4 family.

Weary, isoform B; Weary (wry) encodes a ligand for the receptor encoded by N. It is involved in the Notch signaling pathway and normal heart function.

GDP-fucose protein O-fucosyltransferase 1; Catalyzes the reaction that attaches fucose through an O- glycosidic linkage to a conserved serine or threonine residue found in the consensus sequence C2-X(4,5)-[S/T]-C3 of EGF domains, where C2 and C3 are the second and third conserved cysteines. Specifically uses GDP- fucose as donor substrate and proper disulfide pairing of the substrate EGF domains is required for fucose transfer. Plays a crucial role in Notch signaling. Initial fucosylation of Notch/N by POFUT1 generates a substrate for Fringe/Fng, an acetylglucosaminyltransferase that c [...]

Polypeptide N-acetylgalactosaminyltransferase 35A; Polypeptide N-acetylgalactosaminyltransferases catalyze the transfer of an N-acetyl-D-galactosamine residue to a serine or threonine residue on the protein receptor. Displays the same enzyme activity toward MUC1, MUC4, and EA2. Not involved in glycosylation of erythropoietin (EPO). It can both act as a peptide transferase that transfers GalNAc onto unmodified peptide substrates, and as a glycopeptide transferase that requires the prior addition of a GalNAc on a peptide before adding additional GalNAc moieties. Protein modification by t [...]

GDP-fucose protein O-fucosyltransferase 1; Catalyzes the reaction that attaches fucose through an O- glycosidic linkage to a conserved serine or threonine residue found in the consensus sequence C2-X(4,5)-[S/T]-C3 of EGF domains, where C2 and C3 are the second and third conserved cysteines. Specifically uses GDP- fucose as donor substrate and proper disulfide pairing of the substrate EGF domains is required for fucose transfer. Plays a crucial role in Notch signaling. Initial fucosylation of Notch/N by POFUT1 generates a substrate for Fringe/Fng, an acetylglucosaminyltransferase that c [...]

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.

Polypeptide N-acetylgalactosaminyltransferase 35A; Polypeptide N-acetylgalactosaminyltransferases catalyze the transfer of an N-acetyl-D-galactosamine residue to a serine or threonine residue on the protein receptor. Displays the same enzyme activity toward MUC1, MUC4, and EA2. Not involved in glycosylation of erythropoietin (EPO). It can both act as a peptide transferase that transfers GalNAc onto unmodified peptide substrates, and as a glycopeptide transferase that requires the prior addition of a GalNAc on a peptide before adding additional GalNAc moieties. Protein modification by t [...]

GDP-fucose protein O-fucosyltransferase 1; Catalyzes the reaction that attaches fucose through an O- glycosidic linkage to a conserved serine or threonine residue found in the consensus sequence C2-X(4,5)-[S/T]-C3 of EGF domains, where C2 and C3 are the second and third conserved cysteines. Specifically uses GDP- fucose as donor substrate and proper disulfide pairing of the substrate EGF domains is required for fucose transfer. Plays a crucial role in Notch signaling. Initial fucosylation of Notch/N by POFUT1 generates a substrate for Fringe/Fng, an acetylglucosaminyltransferase that c [...]

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.

Neurogenic locus protein delta; Acts as a ligand for Notch (N) receptor. Essential for proper differentiation of ectoderm. Dl is required for the correct separation of neural and epidermal cell lineages. Fringe (fng) acts in the Golgi to determine the type of O-linked fucose on the EGF modules in N, altering the ability of N to bind with Delta (Dl). O-fut1 also has a role in modulating the interaction.

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.

GDP-fucose protein O-fucosyltransferase 1; Catalyzes the reaction that attaches fucose through an O- glycosidic linkage to a conserved serine or threonine residue found in the consensus sequence C2-X(4,5)-[S/T]-C3 of EGF domains, where C2 and C3 are the second and third conserved cysteines. Specifically uses GDP- fucose as donor substrate and proper disulfide pairing of the substrate EGF domains is required for fucose transfer. Plays a crucial role in Notch signaling. Initial fucosylation of Notch/N by POFUT1 generates a substrate for Fringe/Fng, an acetylglucosaminyltransferase that c [...]

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.

E3 ubiquitin-protein ligase Su(dx); E3 ubiquitin-protein ligase which accepts ubiquitin from an E2 ubiquitin-conjugating enzyme in the form of a thioester and then directly transfers the ubiquitin to targeted substrates. Down-regulates Notch/N signaling pathway, probably by promoting Notch ubiquitination, endocytosis and degradation. Involved in wing growth and leg joint formation.

Neurogenic locus protein delta; Acts as a ligand for Notch (N) receptor. Essential for proper differentiation of ectoderm. Dl is required for the correct separation of neural and epidermal cell lineages. Fringe (fng) acts in the Golgi to determine the type of O-linked fucose on the EGF modules in N, altering the ability of N to bind with Delta (Dl). O-fut1 also has a role in modulating the interaction.

E3 ubiquitin-protein ligase Su(dx); E3 ubiquitin-protein ligase which accepts ubiquitin from an E2 ubiquitin-conjugating enzyme in the form of a thioester and then directly transfers the ubiquitin to targeted substrates. Down-regulates Notch/N signaling pathway, probably by promoting Notch ubiquitination, endocytosis and degradation. Involved in wing growth and leg joint formation.

E3 ubiquitin-protein ligase Nedd-4; Essential E3 ubiquitin-protein ligase which accepts ubiquitin from an E2 ubiquitin-conjugating enzyme in the form of a thioester and then directly transfers the ubiquitin to targeted substrates. Down- regulates Notch/N signaling pathway by promoting Notch ubiquitination, endocytosis and degradation.

E3 ubiquitin-protein ligase Su(dx); E3 ubiquitin-protein ligase which accepts ubiquitin from an E2 ubiquitin-conjugating enzyme in the form of a thioester and then directly transfers the ubiquitin to targeted substrates. Down-regulates Notch/N signaling pathway, probably by promoting Notch ubiquitination, endocytosis and degradation. Involved in wing growth and leg joint formation.

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.

E3 ubiquitin-protein ligase Su(dx); E3 ubiquitin-protein ligase which accepts ubiquitin from an E2 ubiquitin-conjugating enzyme in the form of a thioester and then directly transfers the ubiquitin to targeted substrates. Down-regulates Notch/N signaling pathway, probably by promoting Notch ubiquitination, endocytosis and degradation. Involved in wing growth and leg joint formation.

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.

E3 ubiquitin-protein ligase Su(dx); E3 ubiquitin-protein ligase which accepts ubiquitin from an E2 ubiquitin-conjugating enzyme in the form of a thioester and then directly transfers the ubiquitin to targeted substrates. Down-regulates Notch/N signaling pathway, probably by promoting Notch ubiquitination, endocytosis and degradation. Involved in wing growth and leg joint formation.

FI04474p; Sanpodo (spdo) encodes a four-pass transmembrane domain containing protein that interacts with both the product of numb and the Notch signaling pathway to enable precursor cells to divide asymmetrically to produce daughter cells of distinct fates. Its roles include cell fate specification in the nervous system, mesoderm, and endoderm.