FBP1 and tick-borne encephalitis: For confirmation of the differences observed in CSF metabolites across the neurological-TBE patient groups, the levels of S-Adenosylmethionine (SAM), Fructose-1,6-bisphosphatase 1 (FBP1) and Phosphoenolpyruvic acid (PEP) were profiled in human iPSC-derived motor neurons (hMN) (Fig. 6A) infected with TBEV strain Hypr.