Journal
NATURE CELL BIOLOGY
Volume 4, Issue 10, Pages 798-805Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ncb858
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The formation of axon trajectories requires integration of local adhesive interactions with directional information from attractive and repulsive cues. Here, we show that these two types of information are functionally integrated; activation of the transmembrane receptor Roundabout (Robo) by its ligand, the secreted repulsive guidance cue Slit, inactivates N-cadherin-mediated adhesion. Loss of N-cadherin-mediated adhesion is accompanied by tyrosine phosphorylation of beta-catenin and its loss from the N-cadherin complex, concomitant with the formation of a supramolecular complex containing Robo, Abelson (Abl) kinase and N-cadherin. Local formation of such a receptor complex is an ideal mechanism to steer the growth cone while still allowing adhesion and growth in other directions.
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