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Name: Class 1 Semaphorins
Description: Transmembrane proteins involved in axonal guidance of peripheral neurons in the developing CNS of invertebrates. Semaphorin-1 refers to the class of SEMAPHORINS with an extracellular sema domain and a short cytoplasmic domain. Sema-1 was first identified in grasshopper as fasciclin IV, and has since been described in Drosophila and C. elegans. Two distinct members of this class of semaphorins exist: SEMA-1a (the original sema-1) and SEMA-1b, a homologous protein isolated from Drosophila which may be more important for neuronal differentiation than migration.
Sema 1; Semaphorin 1; Semaphorin-1; Semaphorins, Class 1