《英文msh詞典》Collapsing Factor
[入口詞] Collapsing Factor
[主題詞] Semaphorin-3A
[英文釋義] The prototypical and most well-studied member of the semaphorin family. Semaphorin-3A is an axon-repulsive guidance cue for migrating neurons in the developing nervous system. It has so far been found only in vertebrates,and binds to NEUROPILIN-1/plexin complex receptors on growth cones. Like other class 3 semaphorins,it is a secreted protein.