The
pat-4::gfp transgene is initially expressed weakly throughout postgastrulation embryos. By 420 min postfertilization, PAT-4/ILK::GFP is primarily observed in the body-wall muscle cells, where it colocalizes with the integrin PAT-3 subunit.
pat-4::gfp is also transiently expressed in the pharynx during embryogenesis. In adult hermaphrodites,
pat-4::gfp expression is observed in body-wall muscle cells, the spermatheca, the vulva muscles, a subset of the mechanosensory neurons (ALM, AVM, PLM, and PVM), the distal tip cells, the uterine muscles, and the anal depressor and anal sphincter muscles.