The following serum autoimmune encephalitis antibodies were negative: Hu, Yo, Ri, Amphiphysin, Ma2/Ta, CV2/CRMP5, AQP4, NMDA, AMPA1, AMPA2, GABAB, CASPR2, LGI1, GAD65. This evidence concerns the gene DPYSL5 and autoimmune encephalitis.