Liprin-alpha, isoform E; Liprin-alpha (Liprin-alpha) encodes a scaffolding protein that interacts with the receptor phosphatase Lar. It is involved in synapse morphogenesis and axon guidance.

Ras-related protein Rab-3; Rab3 (Rab3) encodes a member of a large family of Ras-like small GTPases. Localized primarily at the synapse, Rab3 product is involved in mechanisms that control synaptic development and function, including the regulation of active zone protein composition at the neuromuscular junction.

Synaptobrevin; Unknown, but synaptobrevins are presumed to be involved in targeting and fusion of synaptic vesicles with the presynaptic membrane as well as in neurotransmitter release.

RIM-binding protein, isoform F; RIM-binding protein (Rbp) encodes an active zone protein involved in neuromuscular synaptic transmission and presynaptic active zone organization.

Synaptotagmin 1; May have a regulatory role in the membrane interactions during trafficking of synaptic vesicles at the active zone of the synapse. It binds acidic phospholipids with a specificity that requires the presence of both an acidic head group and a diacyl backbone.

Complexin (cpx) encodes a presynaptic cytosolic protein that regulates SNARE complex assembly and fuction. It has both positive and negative roles in synaptic transmission, serving as the synaptic vesicle fusion clamp and as an activator of evoked release; Belongs to the complexin/synaphin family.

Calmodulin; Calmodulin mediates the control of a large number of enzymes, ion channels and other proteins by Ca(2+) (By similarity). Among the enzymes to be stimulated by the calmodulin-Ca(2+) complex are a number of protein kinases and phosphatases (By similarity). In photoreceptor cells, light-induced Ca(2+) influx activates calmodulin, which in turn is likely to promote Crag activity in trafficking of newly synthesized ninaE (Rh1) from the trans-Golgi network to rhabdomere membranes. Together with Akap200, regulates PKA activity and ethanol-induced sensitivity and tolerance.

Syntaxin-1A; Plays a critical role in several secretory processes, including cuticle secretion and neurotransmitter release, and probably assists in neuronal membrane maturation or the final stages of neuronal differentiation. Essential for embryonic viability and development. Required for coordinated peristaltic contractions. Recruited by Unc-13-4B to secretory lysosome-related organelles (SLs) that are essential for tracheal lumen fusion between previously separate tracheal branches (anastomosis). Possibly promotes the intracellular fusion of the extending tracheal stalk cell lumens [...]

Synaptosomal-associated protein 25kDa (Snap25) encodes a synaptic target SNARE protein and a component of SNARE protein complexes known to function in neurotransmitter release. It functions in synaptic transmission in larvae and is essential in adults; Belongs to the SNAP-25 family.