Neural antibodies associated with autoimmune encephalitis including NMDAR, LGI1, GABABR, CASPR2, AMPAR1, AMPAR2, DPPX, IgLON5, GAD65, GlyR, mGluR5, D2R, MOG, GFAP, mGluR1, mGluR2, GABAARα1, GABAARβ3, NMDAR GluN2A, NMDAR GluN2B, Neurexin-3α, KLHL11, Cavα2δ, PDE10A, GluK2, AK5, KCTD16, NCAM1 in serum and CSF were tested using cell-based assays (CBA) with immunofluorescence double staining. This evidence concerns the gene GRM2 and autoimmune encephalitis.