Fig. 1. Expression of nph-1 and nph-4 in C. elegans. (Top) Diagram showing the position of the neurons examined in A and B. (A) nph-1::CFP (L1 Stage) and (B) nph-4::DsRed2 (adult) are expressed in the ciliated sensory neurons of the worm including the amphid and labial neurons in the head (left panels) as well as the phasmid neurons in the tail (right panels). In this figure and all following figures, anterior is toward the left.