Provided herein are novel peptide and nucleotide sequences, their pharmaceutical use, as well as novel polypeptides capable of inhibiting at least partially the interaction between presenilin 1 or presenilin 2 and the .beta.-amyloid peptide precursor or a .beta.-amyloid peptide; also provided are in vitro tests and methods for detecting molecules and in particular, molecules capable of inhibiting said interaction.

Con tal que adjunto estén las secuencias del peptide y del nucleotide de la novela, su uso farmacéutico, así como los polipéptidos de la novela capaces de inhibir por lo menos parcialmente la interacción entre el presenilin 1 o el presenilin 2 y el precursor del peptide del beta.-amiloide o un peptide del beta.-amiloide; también se proporcionan las pruebas y los métodos ines vitro para detectar las moléculas y en el detalle, moléculas capaces de inhibir la interacción dicha.

 
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< Mutant presenilin 1 polypeptides

< .beta.-secretase

> Method for identifying compounds that modulate the interaction of amyloid beta or its aggregates with a voltage gated sodium channel

> Methods and reagents for identifying inhibitors of proteolysis of membrane-associated proteins

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