Tau-441 (2N4R) P301S Mutant Pre-formed Fibrils
Human Recombinant Tau-441 (2N4R) P301S Mutant PFFs (Baculovirus/Sf9)
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) . 2N4R, or Tau-441 is the full length tau protein. P301S is a mutation encoded by exon 10 (4) that impairs the ability of tau to assemble microtubules (5) .
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, mouse Tau protein, P301S mutant Tau, 2N4R Tau, Tau441
UNSPSC
12352202
UN Code
Non-hazardous
Hazard Statement
Non-hazardous
Gene ID
4137
Swiss Prot
P10636
Accession Number
NP_005901.2
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
Baculovirus/Sf9
Host
Baculovirus
Origin Species
Human
Target
Tau-441 (2N4R) P301S Mutant
Conjugation
No Tag
Nature
Recombinant
Sequence
MAEPRQEFEV MEDHAGTYGL GDRKDQGGYT MHQDQEGDTD AGLKESPLQT PTEDGSEEPG SETSDAKSTP TAEDVTAPLV DEGAPGKQAA AQPHTEIPEG TTAEEAGIGD TPSLEDEAAG HVTQARMVSK SKDGTGSDDK KAKGADGKTK IATPRGAAPP GQKGQANATR IPAKTPPAPK TPPSSGEPPK SGDRSGYSSP GSPGTPGSRS RTPSLPTPPT REPKKVAVVR TPPKSPSSAK SRLQTAPVPM PDLKNVKSKI GSTENLKHQP GGGKVQIINK KLDLSNVQSK CGSKDNIKHVSGGGSVQIVY KPVDLSKVTS KCGSLGNIHH KPGGGQVEVK SEKLDFKDRV QSKIGSLDNI THVPGGGNKK IETHKLTFRE NAKAKTDHGA EIVYKSPVVS GDTSPRHLSN VSSTGSIDMV DSPQLATLAD EVSASLAKQG L
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. Low endotoxin <5 EU/mL @ 2mg/mL.
Concentration
2 mg/ml
Purity
>95%
Activity
Thioflavin T emission curves show increased fluorescence (correlated to tau aggregation) over time when tau monomers (SPR-473) are combined with tau fibrils (SPR-471) .
Weight
0.05
Length
Full Length
Buffer
PBS pH 7.4
Molecular Weight
~45.8 kDa
Precautions
Not for use in humans. Not for use in diagnostics or therapeutics. For research use only.
Additionnal Information
SPR-471 is post-translationally modified due to baculovirus/SF9 insect cells expression system. Monomer source is catalog# SPR-473. 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.
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. Bugiani, O. et al. (1999). J Neuropathol Exp Neurol. 58(6):667-77.
Shipping Conditions
Dry Ice. Shipping note: Product will be shipped separately from other products purchased in the same order.
Storage Conditions
-80ºC
Notes
SPR-471 is post-translationally modified due to baculovirus/SF9 insect cells expression system. Monomer source is catalog# SPR-473. 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.
Protein Length
Full Length
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. Bugiani, O. et al. (1999) . J Neuropathol Exp Neurol. 58 (6) :667-77.
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
MAEPRQEFEV MEDHAGTYGL GDRKDQGGYT MHQDQEGDTD AGLKESPLQT PTEDGSEEPG SETSDAKSTP TAEDVTAPLV DEGAPGKQAA AQPHTEIPEG TTAEEAGIGD TPSLEDEAAG HVTQARMVSK SKDGTGSDDK KAKGADGKTK IATPRGAAPP GQKGQANATR IPAKTPPAPK TPPSSGEPPK SGDRSGYSSP GSPGTPGSRS RTPSLPTPPT REPKKVAVVR TPPKSPSSAK SRLQTAPVPM PDLKNVKSKI GSTENLKHQP GGGKVQIINK KLDLSNVQSK CGSKDNIKHVSGGGSVQIVY KPVDLSKVTS KCGSLGNIHH KPGGGQVEVK SEKLDFKDRV QSKIGSLDNI THVPGGGNKK IETHKLTFRE NAKAKTDHGA EIVYKSPVVS GDTSPRHLSN VSSTGSIDMV DSPQLATLAD EVSASLAKQG L
Immunogen Species
Human
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