B类丛蛋白的成员，如PLXNB2是跨膜受体参与轴突导向和细胞迁移响应于信号量（PrRead等）。（2002年）[PubMed 12183458]。[由OMIM提供，2008年3月]
Members of the B class of plexins, such as PLXNB2 are transmembrane receptors that participate in axon guidance and cell migration in response to semaphorins (Perrot et al. (2002) [PubMed 12183458]).[supplied by OMIM, Mar 2008]