BBS2 and Bardet-Biedl syndrome: Dysfunction of the BBS proteins leads to Bardet-Biedl syndrome in humans and sensory defects in C. elegans. Here, we characterize and clone my13, a novel allele of bbs-7 and provide additional evidence for the role of bbs-7 in primary cilia structure, sensory neuron function, and communication between neurons and sheath glia.