ZAC mRNA is expressed in prostate, thyroid, trachea, lung, brain (adult and fetal), spinal cord, skeletal muscle, heart, placenta, pancreas, liver, kidney and stomach. The endogenous ligand for ZAC is thought to be Zn2+, although ZAC has also been found to activate spontaneously. The function of spontaneous ZAC activation is unknown.
^ abcDavies PA, Wang W, Hales TG, Kirkness EF (January 2003). "A novel class of ligand-gated ion channel is activated by Zn2+". The Journal of Biological Chemistry. 278 (2): 712–7. PMID12381728. doi:10.1074/jbc.M208814200.
^Houtani T, Munemoto Y, Kase M, Sakuma S, Tsutsumi T, Sugimoto T (September 2005). "Cloning and expression of ligand-gated ion-channel receptor L2 in central nervous system". Biochemical and Biophysical Research Communications. 335 (2): 277–85. PMID16083862. doi:10.1016/j.bbrc.2005.07.079.