three different binding patterns are observed for different lectin : equal receptor density throughout the plasmalemma of the growing neuron ( e.g. , ricinus communis agglutinin i in scg neurons ) , gradual decrease ( e.g. , wheat-germ agglutinin in scg and sc neurons ) and gradual increase ( e.g. , ricinus communis agglutinin ii in sc neurons ) in the density of lectin receptors as one moves from the perikaryon to the growth cone .
C0027882
neurons
C0599444
perikaryon