title: Semaphorins: repulsive guidance molecules show their attractive side.
abstract: Semaphorins are known to repel growth cones of developing axons, but a study of the grasshopper limb bud shows that they can also serve as attractive guidance cues.
authors.forename: A W
authors.initials: AW
authors.lastname: Püschel
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001369:Axons / Q000502:physiology; D015816:Cell Adhesion Molecules, Neuronal / Q000737:chemistry / Q000235:genetics / Q000502:physiology*; D017124:Conserved Sequence; D004625:Embryo, Nonmammalian / Q000502:physiology; D006110:Grasshoppers; D018878:Limb Buds / Q000502:physiology; D009414:Nerve Growth Factors / Q000737:chemistry / Q000235:genetics / Q000502:physiology*; D009419:Nerve Tissue Proteins / Q000737:chemistry / Q000235:genetics / Q000502:physiology*; D039961:Semaphorins; D014714:Vertebrates
chemical_list: D015816:Cell Adhesion Molecules, Neuronal; D009414:Nerve Growth Factors; D009419:Nerve Tissue Proteins; D039961:Semaphorins