TMEM97 and PGRMC1 do not mediate sigma-2 ligand-induced cell death

a Chemical structures of sigma-2 ligands used in the current study. b Competition curves of [3H](+)-pentazocine binding for sigma-1 receptors on guinea pig brain membranes and [3H]DTG binding for sigma-2 receptors on rat liver membranes in the presence of increasing concentrations of non-radioactive sigma-2 ligand