Tau (K18) P301L Mutant Pre-formed Fibrils
Human Recombinant Tau (K18) P301L Mutant PFFs
Product Specifications
Background
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 hyperphosphorylated tau fibrils (3) . There are six isoforms of tau in the adult human brain: three with four repeat units (4R) and three with three repeat units (3R) (4) . K18 is a truncated form of human tau containing only the 4 microtubule binding repeats (5) . P301L (PL) is a mutation where proline is replaced by leucine at codon 301 of tau, and has been linked to frontotemporal dementia (6) .
Product Name Alternative
Tau PFFs, Tau PFF, Tau protein Pre-formed Fibrils, Tau aggregates, microtubule-associated protein Tau, MAPT, MAP, microtubule-associated protein, Paired Helical Filament-Tau, Phf-Tau, Neurofibrillary Tangle Protein, G Protein Beta1/Gamma2 Subunit-Interacting Factor 1, Isoform 4, tubulin-associated unit
UNSPSC
12352202
UN Code
Non-hazardous
Hazard Statement
Non-hazardous
Gene ID
4137
Swiss Prot
P10636
Cellular Locus
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
Expression System
E. coli
Host
E. coli
Origin Species
Human
Target
Tau (K18) P301L Mutant
Conjugation
No tag
Nature
Recombinant
Sequence
SRLQTAPVPM PDLKNVKSKI GSTENLKHQP GGGKVQIINK KLDLSNVQSK CGSKDNIKHVLGGGSVQIVY KPVDLSKVTS KCGSLGNIHH KPGGGQVEVK SEKLDFKDRV QSKIGSLDNI THVPGGGNKK IETHKLTFRE
Applications
WB | SDS-PAGE | In vivo assay | In vitro assay
Field of Research
Alzheimer's Disease | Axon Markers | Cell Markers | Cell Signaling | Cytoskeleton | Microtubules | MT Associated Proteins | Neurodegeneration | Neuron Markers | Neuroscience | Tangles & Tau
Purification Method
Ion-exchange Purified
Purification
Ion-exchange Purified
Limit Of Detection
Certified >95% pure using SDS-PAGE analysis. Made with low endotoxin monomer.
Concentration
2 mg/ml
Purity
>95%
Activity
Thioflavin T emission curve shows increased fluorescence (correlated to tau protein fibrillation) when active tau PFFs are combined with active tau monomers.
Weight
0.05
Length
Partial
Buffer
10 mM HEPES, 100 mM NaCl pH 7.4
Molecular Weight
~15.1 kDa
Precautions
Not for use in humans. Not for use in diagnostics or therapeutics. For research use only.
Additionnal Information
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-328.
References & Citations
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. Matsumoto, G. et al. (2018). Int J Mol Sci. 19, 1497.
4. Goedert, M. and Spillantini, M. G. (2017). Mol Brain. 10:18.
5. Guo, J. and Lee, M.Y. (2013). FEBS Lett. 587(6): 717-723.
6. Alberici, A. et al. (2004). J Neurol Neurosurg Psychiatry. 75:1607-1610.
Shipping Conditions
Dry Ice. Shipping note: Product will be shipped separately from other products purchased in the same order.
Storage Conditions
-80ºC
Notes
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-328.
Protein Length
Partial
Background Reference 01
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. Matsumoto, G. et al. (2018) . Int J Mol Sci. 19, 1497. 4. Goedert, M. and Spillantini, M. G. (2017) . Mol Brain. 10:18. 5. Guo, J. and Lee, M.Y. (2013) . FEBS Lett. 587 (6) : 717-723. 6. Alberici, A. et al. (2004) . J Neurol Neurosurg Psychiatry. 75:1607-1610.
Location
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
AA Sequence
MSRLQTAPVPM PDLKNVKSKI GSTENLKHQP GGGKVQIINK KLDLSNVQSK CGSKDNIKHVLGGGSVQIVY KPVDLSKVTS KCGSLGNIHH KPGGGQVEVK SEKLDFKDRV QSKIGSLDNI THVPGGGNKK IETHKLTFRE
Immunogen Species
Human
Documents
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