Mothers against dpp (Mad) encodes the primary transcription factor that mediates cellular response to the BMP like ligands encoded by dpp, scw and gbb. Upon phosphorylation by either the products of sax or tkv (type I BMP receptors), it forms a complex with the product of Med and translocates to the nucleus where, together with cofactors, it regulates expression of BMP response target genes; Belongs to the dwarfin/SMAD family.

Mothers against decapentaplegic homolog; Smad on X (Smox) encodes the primary transcription factor that mediates Activin signalling. Upon phosphorylation by the receptor encoded by babo, it forms a complex with the co-Smad protein encoded by Med. This complex translocates to the nucleus where it regulates expression of target genes.

Mothers against decapentaplegic homolog; Medea (Med) encodes a protein that belongs to the highly conserved Smad family. It can bind its siblings encoded by Mad or Smox to facilitate signal transduction for the product of dpp or Activin ligands in the TGF-beta family. Med-complexes function as transcriptional regulators. Many developmental roles include dorsal-ventral patterning, patterning and proliferation of the wing disc and gene expression in the mushroom body of the larval brain.

Receptor protein serine/threonine kinase; Thickveins (tkv) encodes a transforming growth factor beta type I receptor. Together with the product of put, it functions as a receptor of the product of dpp and therefore contributes to the BMP signaling pathway; Belongs to the protein kinase superfamily. TKL Ser/Thr protein kinase family. TGFB receptor subfamily.

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.

Transcriptional coactivator yorkie; Transcriptional coactivator which is the critical downstream regulatory target in the Hippo/SWH (Sav/Wts/Hpo) signaling pathway that plays a pivotal role in organ size control and tumor suppression by restricting proliferation and promoting apoptosis. The core of this pathway is composed of a kinase cascade wherein Hippo (Hpo), in complex with its regulatory protein Salvador (Sav), phosphorylates and activates Warts (Wts) in complex with its regulatory protein Mats, which in turn phosphorylates and inactivates the Yorkie (Yki) oncoprotein. The Hippo/ [...]

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.

FI18049p1; Ubiquitin protein ligase activity.

Receptor protein serine/threonine kinase; Saxophone (sax) encodes a type I BMP receptor. Together with the BMP receptors encoded by tkv and put, it transduces signaling of the BMP ligands encoded by dpp, gbb and scw, in a wide variety of developmental processes including embryonic and imaginal disc patterning; Belongs to the protein kinase superfamily. TKL Ser/Thr protein kinase family. TGFB receptor subfamily.