PR:000037668 presenilin-1 sequence variant L250V (human) hPSEN1/var:L250V|UniProtKB:P49768-1, Leu-250, CHEBI:30015 associated_with_disease_progression DOID:10652 Alzheimer's disease Alzforum:psen1-l250v EXP NCBITaxon:9606 Alzforum:psen1-l250v 20180510 PRO:DAN