Protein teashirt; Homeotic protein that acts downstream of Arm in the Wg cascade during embryogenesis to determine segment identity throughout the entire trunk. Acts cooperatively with other trunk homeotic proteins to repress head homeotic genes and therefore repress head segmental identity. Necessary, in combination with Scr, for the formation of the prothoracic segment. Promotes eye development in the dorsal region of the eye disk and suppresses eye development in the ventral region in combination with Wg-signaling and several early dorso-ventral eye patterning genes. Required for pr [...]

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/ [...]

Homeobox protein abdominal-A; Sequence-specific transcription factor which is part of a developmental regulatory system that provides cells with specific positional identities on the anterior-posterior axis. Required for segmental identity of the second through eighth abdominal segments. Once a pattern of abd-A expression is turned on in a given parasegment, it remains on the more posterior parasegment, so that the complex pattern of expression is built up in the successive parasegments. Appears to repress expression of Ubx whenever they appear in the same cell, but abd-A is repressed [...]

Homeobox protein abdominal-B; Abdominal B (Abd-B) is one of the three hox genes of the bithorax complex. The product of Abd-B specifies the identity of the posterior abdominal segments, the external genitalia and the gonads. It is also involved in regulating the post-mating-response.

Homeotic protein antennapedia; Antennapedia (Antp) is the distal-most member of the Antennapedia complex; one of two Hox gene complexes. Antp encodes a sequence-specific homeodomain transcription factor, which is part of a developmental regulatory system that specifies segmental identity in the pro- and mesothorax. In adults Antp loss of function is associated with a transformation of leg into antenna while ectopic expression in the head is associated with antenna to leg and eye to wing transformations.

Homeotic protein distal-less; Transcription factor that plays a role in larval and adult appendage development. Specifies the identity of ventral appendages (including legs and antennae) and suppresses dorsal appendage development. Involved in patterning the distal-proximal limb axis. May control the adhesive properties of cells during limb morphogenesis. Also has a secondary role in the normal patterning of the wing margin.

Protein decapentaplegic; Required during oogenesis for eggshell patterning and dorsal/ventral patterning of the embryo. Acts as a morphogen during embryogenesis to pattern the dorsal/ventral axis, specifying dorsal ectoderm and amnioserosa cell fate within the dorsal half of the embryo; this activity is antagonized by binding to sog and tsg. Induces the formation of visceral mesoderm and the heart in early embryos. Required later in embryogenesis for dorsal closure and patterning of the hindgut. Also functions postembryonically as a long-range morphogen during imaginal disk development [...]

Developmental protein eyes absent; Tyrosine phosphatase thought to play a role in transcription regulation during organogenesis through its intrinsic protein phosphatase activity. The phosphatase activity was shown in vitro. Appears to function together with So and Dac in eye development. Required for the survival of eye progenitor cells at a critical stage in morphogenesis. Belongs to the HAD-like hydrolase superfamily. EYA family.

Spalt-related, isoform A; Spalt-related (salr) encodes a zinc finger transcriptional repressor that, together with the product of salm, mediates most dpp functions during development of the central part of the wing. It is repressed by the product of Ubx during haltere development.