Netrin unc-6; Component of an extracellular matrix cue that guides dorsoventral migrations on the epidermis. Required for the guidance of pioneer axons and migrating cells along the body wall. During gonad morphogenesis, involved in distal tip cell (DTC) migration from the dorsal side of the hermaphrodite body to the midbody to allow for formation of gonad arms. Its association with either unc-40 or unc-5 receptors will lead to axon attraction or repulsion, respectively. Involved in the positioning of ray 1, the most anterior ray sensilium, in the male tail. Required for the formation [...]

Slit homolog 1 protein; Functions as a ligand for sax-3 receptor during larval development. Acts via the sax-3/Robo receptor to direct ventral axon guidance and guidance at the midline during embryonic development.

Abnormal cell migration protein 10; Required cell non-autonomously for proper development of the excretory canals and for the long-range anterior-posterior migrations of embryonic neurons CAN, ALM and HSN. Plays a role, probably downstream of ced-10/rac1, in orientating axonal growth of HSN and AVM neurons in response to guidance cues such as slt- 1. May regulate growth cone polarization by promoting asymmetric F-actin assembly. May be involved in signal transduction during cell migration. Belongs to the MRL family.

WH1 domain-containing protein.

Guanine nucleotide exchange factor UNC-73A.

Protein sax-3; Required to confine migrating sex myoblasts to the ventral muscle quadrants during their migration through the body and for multiple aspects of sensory, motor, and interneuron axon guidance. Belongs to the immunoglobulin superfamily. ROBO/SAX3 family.

Netrin receptor unc-5; Receptor for netrin (unc-6) required for axon guidance. Mediates axon repulsion of neuronal growth cones in the developing nervous system upon ligand binding. Axon migration is mediated by the secreted unc-6, which promotes attraction of neurons and axons through binding to the unc-40 receptor, while repulsion requires both unc-5 and unc-40 receptors. Involved in the ventral-dorsal and anterior-posterior migration of distal tip cells along the body, which may be mediated by Wnt receptor mom-5, ced- 10/Rac, ced-12/ELMO and mig-2/RhoG.

Protein eva-1; Acts as a receptor for slt-1. Required for the guidance of the AVM pioneer axon to the ventral nerve cord. Acts as a unc-40 coreceptor to enhance the sensitivity of unc-40 to the madd-4 midline guidance cue to guide muscle arm extensions (muscle arms) and AVM mechanosensory axons towards the dorsoventral midline. Belongs to the EVA1 family.

Protein madd-4; Component of an extracellular matrix cue that is involved in the guidance of dorsoventral midline migrations and in the specification of postsynaptic domains at neuromuscular junctions (NMJs). Acts as a ligand for the netrin receptor unc-40 and the neuroligin receptor nlg-1. Secreted by the dorsal and ventral nerve cords to attract sensory axons and muscle membrane extensions called muscle arms. In parallel with unc-6 and slt-1, involved in the netrin receptor unc-40 dependent guidance of the AVM and PVM mechanosensory axons along the dorsal-ventral axis. The unc-40 cor [...]