PR:000037671 presenilin-1 sequence variant V261F (human) hPSEN1/var:V261F|UniProtKB:P49768-1, Val-261, CHEBI:29997 associated_with_disease_progression DOID:10652 Alzheimer's disease Alzforum:psen1-v261f EXP NCBITaxon:9606 Alzforum:psen1-v261f 20180510 PRO:DAN