A previous study described
kgb-1 expression from 1.77 Kb of its upstream sequence in the pharynx, intestine, body wall muscle, spermatheca, and sensory neurons, starting as early as the egg stage and continuing through adulthood (Gerke et al. 2014). A KGB-1::GFP fusion protein expressed from a 8.7 Kb of the
kgb-1 genomic locus including 4.6 Kb of the
kgb-1 upstream sequences and all introns demonstrated similar expression patterns and further revealed expression in the epidermis, vulva, and in what appear to be motor neurons. Localization of KGB-1 was prominent in intestinal and epidermal nuclei, in the apical membrane of intestinal cells, and along the muscle myofilaments.