Amyloid Precursor Frameshift Mutant C-Terminal Peptide

(4S)-4-[[(2S)-6-amino-2-[[(2S)-2-[[(2S)-2-[[(2S,3R)-2-[[(2S)-2-[[2-[[(2S)-2-amino-5-(diaminomethylideneamino)pentanoyl]amino]acetyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]-3-hydroxybutanoyl]amino]-3-hydroxypropanoyl]amino]-3-hydroxypropanoyl]amino]hexanoyl]amino]-5-[[(2S)-1-[[(1S)-1-carboxyethyl]amino]-4-methyl-1-oxopentan-2-yl]amino]-5-oxopentanoic acid;2,2,2-trifluoroacetic acid