An antibody specific for DAF-19A/B detects DAF-19 in all nonciliated neurons. (A) DAF-19 epitopes recognized by two different antibodies. Antibody AbDAF19N is specific for the long isoforms DAF-19A/B, whereas antibody AbDAF19C recognizes all three isoforms DAF-19A/B/C. (B-E) gfp reporter lines stained with antibodies against DAF-19. AbDAF19N detects DAF-19A/B only in nonciliated neurons (D and E) and not in ciliated sensory neurons (csn) (B and C).
ceh-23::gfp marks ciliated sensory neurons,
tph-1::gfp marks the serotonergic neuron ADF (ciliated), and
nmr-1::gfp marks interneurons (nonciliated); see Supplemental Table 1 for details. (H) Schematic summary of all neurons investigated in the head region (blue, AbDAF19N; yellow, AbDAF19C; white, not determined neurons; and gray, no DAF-19 expression detected).