Tau Truncated Fragment (AA297-391) (dGAE) Pre-formed Fibrils

Alzheimer’s Disease (AD) is the most common neurodegenerative disease, affecting 10% of seniors over the age of 65 (1). It was named after Alois Alzheimer, a German scientist who discovered tangled bundles of fibrils where neurons had once been in the brain of a deceased patient in 1907 (2). Tau (tubulin-associated unit) is normally located in the axons of neurons where it stabilizes microtubules. Tauopathies such as AD are characterized by neurofibrillary tangles containing paired helical filaments (PHFs). A truncated 95-amino acid fragment corresponding to residues 297-391 of full-length tau has been shown to assemble into PHF-like fibrils in vitro in the absence of additives or templates (3). This fragment has been found in the core of PHFs from AD brains and forms filaments that closely resemble PHFs isolated from AD brains (3).

Tau aggregate, Tau PFFs, Tau PFF, Tau protein aggregate, Tau protein, microtubule-associated protein Tau, MAPT, MAP, microtubule-associated protein, Truncated Tau Protein Aggregate, Paired Helical Filament-Tau, Phf-Tau, Neurofibrillary Tangle Protein, G Protein Beta1/Gamma2 Subunit-Interacting Factor 1, Isoform 2, tubulin-associated unit, 95-amino acid Tau protein fragment, Truncated Tau Protein

Cytoplasm | Axolemma | Axolemma Plasma Membrane | Axon | Cell Body | Cell membrane | Cytoplasmic Ribonucleoprotein Granule | Cytoplasmic Side | Cytoskeleton | Cytosol | Dendrite | Growth cone | Microtubule | Microtubule Associated Complex | Neurofibrillary Tangle | Neuronal Cell Body | Nuclear Periphery | Nuclear Speck | Nucleus | Peripheral membrane protein | Plasma Membrane | Tubulin Complex

Thioflavin T emission curves show increased fluorescence (correlated to tau aggregation) over time when truncated tau fragment (AA297-391) (dGAE) monomer is combined with truncated tau fragment (AA297-391) (dGAE) Pre-formed Fibrils.

For best results, sonicate immediately prior to use. Refer to the Neurodegenerative Protein Handling Instructions on our website, or the product datasheet for further information. Monomer source is catalog# SPR-444.

1. www.alz.org/alzheimers-dementia/facts-figures 2. Alzheimer, A. Über eine eigenartige Erkrankung der Hirnrinde. Allg. Z. Psychiatr. Psych.-Gerichtl. Med. 64, 146–148 (1907) 3. Al-Hilaly, Y.K. et al. Alzheimer's Disease-like Paired Helical Filament Assembly from Truncated Tau Protein Is Independent of Disulfide Crosslinking. J. Mol. Biol. 429(23):3650-3665 (2017)