“…[5,6] Minic et al reported the first evidence that an HSP70-like protein specifically binds to the GlcNAc residue. [7] Recently, Lefebvre and co-workers directly proved that the O-GlcNAc-specific protein is a member of the HSP70 family by using an MS-based proteomics approach. [8] They also found that the GlcNAc-directed lectin activity of HSP70 can be modulated by glucose availability and utilization.…”