ASTROTACTIN

Neuronal surface glycoprotein (100-105 kD; 3 EGF-like repeat domains, 2 fibronectin III repeats), that functions in murine cerebellar granule cell migration in vitro, acting as the ligand for neuron-glial cell binding. Message has been detected in neuronal precursors in the cerebellum, hippocampus, cerebrum and olfactory bulb in the brain. See weaver mutant.