Plexin A is a neuronal semaphorin receptor that controls axon guidance

Margaret L. Winberg, Jasprina N. Noordermeer, Luca Tamagnone, Paolo M. Comoglio, Melanie K. Spriggs, Marc Tessier-Lavigne, Corey S. Goodman

Research output: Contribution to journalArticlepeer-review

Abstract

The Semaphorins comprise a large family of secreted and transmembrane proteins, some of which function as repellents during axon guidance. Semaphorins fall into seven subclasses. Neuropilins are neuronal receptors for class III Semaphorins. In the immune system, VESPR, a member of the Plexin family, is a receptor for a viral-encoded Semaphorin. Here, we identify two Drosophila Plexins, both of which are expressed in the developing nervous system. We present evidence that Plexin A is a neuronal receptor for class I Semaphorins (Sema 1a and Sema 1b) and show that Plexin A controls motor and CNS axon guidance. Plexins, which themselves contain complete Semaphorin domains, may be both the ancestors of classical Semaphorins and binding partners for Semaphorins.

Original languageEnglish
Pages (from-to)903-916
Number of pages14
JournalCell
Volume95
Issue number7
DOIs
Publication statusPublished - Dec 23 1998

ASJC Scopus subject areas

  • Cell Biology
  • Molecular Biology

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