From this construct,
unc-103 also expresses in the pharyngeal neurons (I2 and NSM), head neurons [IL1, IL2, OLL, URAD, ASH, AVD, AUA, and SIAV and OLQ, RIV, URYV, AIN, and AIA, PCA in the post-cloacal sensilla, and one of two ray neurons in rays 1, 2, 3, 4, 6, and 9. An
unc-103::YFP translational fusion expressed from the 8.7 kb upstream region was also injected and it was observed that the anal depressor, spicule protractor, retractor, and other male sex muscles also expressed UNC-103; in the hermaphrodite, the vulva muscles also express the transgene.