title: Axon guidance mechanisms: semaphorins as simultaneous repellents and anti-repellents.
authors: H
authors: H
authors: Chen
authors: Z
authors: Z
authors: He
authors: M
authors: M
authors: Tessier-Lavigne
mesh_terms: D000818:Animals; D001369:Axons / Q000502:physiology*; D002352:Carrier Proteins / Q000502:physiology*; D006023:Glycoproteins / Q000502:physiology*; D009414:Nerve Growth Factors / Q000502:physiology*; D009419:Nerve Tissue Proteins / Q000502:physiology*; D040121:Semaphorin-3A; D013564:Sympathetic Nervous System / Q000502:physiology
chemical_list: D002352:Carrier Proteins; D006023:Glycoproteins; D009414:Nerve Growth Factors; D009419:Nerve Tissue Proteins; D040121:Semaphorin-3A; C099435:semaphorin A(V)