Erratum to: O-GlcNAc Glycosylation of nNOS Promotes Neuronal Apoptosis Following Glutamate Excitotoxicity

Erratum to: Cell Mol Neurobiol DOI 10.1007/s10571-017-0477-1

The original version of this article unfortunately contained the errors in the caption of Figures 3 and 4. The corrected figure captions are given below:

Fig. 3 The interaction between nNOS and OGT was recently reported (Ryu et al. 2016). As OGT catalyzes the OGlcNAc modification of nNOS during excitotoxicity, we speculated whether nNOS interacts with OGT. Immunofluorescent staining showed that nNOS was strongly co-localized with OGT 3 h after ischemia compared with the sham group (a–g). In addition, nNOS directly interacts with OGT in brain tissue as indicated by reciprocal immunoprecipitation studies (h, i). Subsequently, immunoprecipitation studies showed that in PC12 cells treated with or without glutamate, nNOS interacted with OGT directly, and the interaction between nNOS and OGT was enhanced by glutamate stimulation as well as O-GlcNAcylation of nNOS (j). Thus, we have sufficient reason to conclude that excitotoxicity induces the increase in nNOS O-GlcNAcylation due to an enhanced interaction between nNOS and OGT

Fig. 4 Identification of O-GlcNAc sites of nNOS. PC12 cells were transfected with WT or mutated nNOS and OGT for 36 h and then subjected to immunoprecipitation with anti-Myc-Tag(19C2) and IgG antibody and then analyzed by western blot as well as the total lysate of PC12 cells (a) n = 3