All of the GABAergic neurons and only these cells express
unc-25, and the
unc-25 expression was visible as soon as these neurons were generated. pSC317 and pSC100 were expressed in all 26 GABAergic neurons. pSC380, pSC379, pSC98, and pSC315 were not expressed in the RIS, AVL, and DVB neurons. pSC381 expressed GFP in all 26 GABAergic neurons.