Expression in the alimentary canal: Strong and consistent expression in M2, rectal epithelial cells. Weak or rare expression in anterior arcades, posterior arcades.
C10C6.7 expression is visible in nine cells: interneuron RIS; pharyngeal neurons M1, M2, Motor-interneuron, an unidentified pair of pharyngeal neurons and an unidentified pair of sensory neurons.
A transcriptional GFP expression construct driven by trxr-1 promoter was expressed only in M2 neurons. The expression level of translational TRXR-1::gfp was especially high in intestine, vulva and pharynx.