NPHP-1 and NPHP-4 localize to TZs of male-specific CEM cilia. 3D deconvolution images of NPHP-1∷GFP (a) and NPHP-4∷GFP (c) expressed only in male-specific CEM neurons and overlaid on Nomarski images (b and d). NPHP-1∷GFP and NPHP-4∷GFP localize to the CEM TZ but not the cilium proper (a–d). The CEM axoneme emanates from the TZ to the cuticle (territories of CEM cilium are indicated by brackets in b and d). Lateral view is shown. Bar, 10 μm.