Semaphorin-3A/SEMA3A proteins are critical for shaping the olfactory system and influence puberty-related neuronal control. SEMA3A is known for inducing neuronal growth cone collapse, which leads to the formation of complex neuronal circuits by guiding the growth cone through a motor inhibitory mechanism. Semaphorin-3A/SEMA3A Protein, Human (HEK293, His-Flag) is the recombinant human-derived Semaphorin-3A/SEMA3A protein, expressed by HEK293 , with N-6*His, N-Flag labeled tag.