title: Guidance receptors find their places in the axonal order.
abstract: In this issue of Neuron, Katsuki and colleagues show that cell-autonomous mechanisms divide Drosophila axons into proximal and distal compartments. Axon guidance receptors selectively localize to one compartment. A diffusion barrier exists near the compartment boundary, suggesting that it may have properties like those of the axon initial segment in mammalian neurons.
authors.affiliation: Division of Biology, California Institute of Technology, Pasadena, CA 91125, USA. ashley@caltech.edu
authors.forename: Ashley P
authors.initials: AP
authors.lastname: Wright
authors.forename: Kai
authors.initials: K
authors.lastname: Zinn
mesh_terms: D000818:Animals; D001369:Axons / Q000502:physiology*; D002465:Cell Movement / Q000502:physiology*; D016764:Cell Polarity / Q000502:physiology*; D004330:Drosophila; D009474:Neurons / Q000166:cytology