Presenilin homolog; Probable catalytic subunit of the gamma-secretase complex, an endoprotease complex that catalyzes the intramembrane cleavage of integral membrane proteins such as Notch receptor. Required for S3 cleavage of Notch, which releases activated Notch protein from the cell membrane. Involved in the patterning of the optic lobes. Belongs to the peptidase A22A family.

Gamma-secretase subunit pen-2; Essential subunit of the gamma-secretase complex, an endoprotease complex that catalyzes the intramembrane cleavage of integral membrane proteins such as Notch. It probably represents the last step of maturation of gamma-secretase, facilitating endoproteolysis of presenilin and conferring gamma-secretase activity.

Furin-like protease 2; Furin is likely to represent the ubiquitous endoprotease activity within constitutive secretory pathways and capable of cleavage at the RX(K/R)R consensus motif.

Furin-like protease 1, isoforms 1/1-X/2; Furin is likely to represent the ubiquitous endoprotease activity within constitutive secretory pathways and capable of cleavage at the RX(K/R)R consensus motif.

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.

C-terminal Src kinase (Csk) encodes a cytoplasmic tyrosine kinase that acts as a tumor suppressor through Src pathway inibition as well as a mediator of the activity of the product of Egfr.

Tissue inhibitor of metalloproteinase; Metalloproteinase inhibitor that acts on both matrix metalloproteinases Mmp1 and Mmp2 in vitro. Complexes with metalloproteinases and irreversibly inactivates them by binding to their catalytic zinc cofactor (By similarity). Required for wing maturation which is the final step in morphogenesis of the adult fly. Involved in the negative regulation of developmental tissue invasion for imaginal disk eversion during metamorphosis by inhibiting Mmp-mediated basement membrane (BM) degradation. Required for oogenesis and for the long-term maintainance of [...]

Suppressor of hairless protein; 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. 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. Required for transcription of Sim. Spec [...]

Processed neurogenic locus Notch protein; Essential signaling protein which has a major role in many developmental processes. Functions as a receptor for membrane-bound ligands Delta and Serrate to regulate cell-fate determination. Upon ligand activation, and releasing from the cell membrane, the Notch intracellular domain (NICD) forms a transcriptional activator complex with Su(H) (Suppressor of hairless) and activates genes of the E(spl) complex. Regulates oogenesis, the differentiation of the ectoderm and the development of the central and peripheral nervous system, eye, wing disk, [...]