Mutations in presenilin-1 are a major cause of early onset Alzheimer's disease [1]. It has been found that presenilin-1 (Swiss:P49768) binds to beta-catenin in-vivo [3]. This family also contains SPE proteins from C.elegans.

1: Presenilins and Alzheimer's disease. Kim TW, Tanzi RE; Curr Opin Neurobiol 1997;7:683-688. PMID:9384549

2: Interaction of presenilins with the filamin family of actin-binding proteins. Zhang W, Han SW, McKeel DW, Goate A, Wu JY; J Neurosci 1998;18:914-922. PMID:9437013

3: Destabilisation of beta-catenin by mutations in presenilin-1 potentiates neuronal apoptosis. Zhang Z, Hartmann H, Do VM, Abramowski D, Sturchler-Pierrat C, Staufenbiel M, Sommer B, van de Wetering M, Clevers H, Saftig P, De Strooper B, He X, Yankner BA; Nature 1998;395:698-702. PMID:9790190