Transient receptor potential cation channel, mucolipin (Trpml) encodes a ion channel involved in autophagy, lateral inhibition and TOR signalling regulation.

Transient-receptor-potential-like protein; A light-sensitive calcium channel that is required for inositide-mediated Ca(2+) entry in the retina during phospholipase C (PLC)-mediated phototransduction. Required for vision in the dark and in dim light. Binds calmodulin. Trp and trpl act together in the light response, although it is unclear whether as heteromultimers or distinct units. Also forms a functional cation channel with Trpgamma. Activated by fatty acids, metabolic stress, inositols and GTP-binding proteins.

Polycystic kidney disease 2 (Pkd2) encodes a calcium permeable cation channel of the transient receptor potential (TRP) family. Its roles include sperm motility, smooth muscle contraction, larval feeding behavior, detection of mechanical stimuli and cold nociception.

Putative gustatory receptor 28b; Probable gustatory receptor which mediates acceptance or avoidance behavior, depending on its substrates (By similarity). Atypical expression suggests also nongustatory roles in the nervous system and tissues involved in proprioception, hygroreception, and other sensory modalities. It is also possible that it has chemosensory roles in the detection of internal ligands; Belongs to the insect chemoreceptor superfamily. Gustatory receptor (GR) family. Gr66a subfamily.

Dopamine receptor 1; Receptor for dopamine. The activity of this receptor is mediated by G proteins which activate adenylyl cyclase. Might be involved in the processing of visual information and/or visual learning. Important for Pavlovian conditioning: required in the mushroom body as a receptor conveying unconditional stimuli information, has a role in memory formation for aversive and appetitive learning. Sleep-deprivation-induced impairments in learning can be partially explained through alterations in dopamine signaling, Dop1R1 expression levels are reduced; sleep may have a role i [...]

Amiloride-sensitive Na+ channel; Pickpocket (ppk) encodes an acid-sensing sodium channel from the degenerin/epithelial sodium channel (DEG/ENaC) family. It contributes to mechanical nociception, larval behavior and dendrite morphogenesis.

Transient receptor potential-gamma protein; A light-sensitive calcium channel that is required for inositide-mediated Ca(2+) entry in the retina during phospholipase C (PLC)-mediated phototransduction (By similarity). Forms a regulated cation channel when heteromultimerized with trpl; Belongs to the transient receptor (TC 1.A.4) family. STrpC subfamily.

Gustatory receptor for bitter taste 66a; Gustatory receptor required for response to the bitter in taste neurons. Gr66a cells respond to bitter compounds such as caffeine, theophylline, threonine or valine. Flies avoid bitter substances, suggesting that Gr66a neuron activity is sufficient to mediate avoidance behavior. Required for sensing and avoiding N,N- Diethyl-meta-toluamide (DEET), the most widely used insect repellent worldwide, as well as to L-canavanine, a plant-derived insecticide. Gr66a neurons are also involved in the sex-specific perception of molecules inducing male avoid [...]

Gustatory receptor 5a for trehalose; Gustatory receptor required for response to the sugar trehalose in taste neurons. Gr5a neurons selectively respond to sugars, in contrast to Gr66a cells which respond to bitter compounds. Flies are attracted to sugars and avoid bitter substances, suggesting that Gr5a neuron activity is sufficient to mediate acceptance behavior. Sugar signal transduction occurs through coupling with G-proteins such as Galpha49B and G-salpha60A.