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Home / Proteins & Peptide

Human Recombinant Tau-441 (2N4R) and Human Recombinant Alpha Synuclein Co-Polymer Fibrils

SKU : BHP11901224

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StressMarq Biosciences Inc.

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Mfr.No.	SPR-495, SPR-495B, SPR-495C, SPR-495E
Alternative Names	MAPT, 2N4R, Tau40 neurofibrillary tangle protein, paired-helical filament, PHFs, SNCA, NACP, PARK1, asyn, alpha-synuclein, pre-formed fibril, PFFs, mixed fibrils
Certificate Of Analysis	Protein certified >95% pure on SDS-PAGE & Nanodrop analysis
Field Of Use	Not for use in humans. Not for use in diagnostics or therapeutics. For research use only.
Scientific Background	Brain-specific tau isoforms vary in the number of N-terminal inserts and C- terminal repeat domains due to alternative splicing of exons; the 2N4R isoform of tau is expressed in adult brain yet is absent from the fetal brain (1). Tau and alpha-synuclein polymerize into amyloid fibrils to form filamentous inclusions in neurodegenerative diseases such as Alzheimer s and Parkinson s disease. Tau has been shown to interact with alpha-synuclein in vitro (2), with synergistic cross-seeding between tau and alpha-synuclein resulting in polymerization of each other into fibrillary amyloid lesions in neuronal cultures and in vivo (3,4). Recombinant tau and alpha-synuclein co-polymer fibrils have demonstrated a more widespread transmission of induced pathology in a rodent model of tauopathies compared to pure Tau or alpha-synuclein fibrils alone (5). These co-polymer fibrils have also shown enhanced alpha-synuclein aggregation in vitro, and more severe alpha-synuclein pathology and Parkinson s disease-like symptoms in mice (6).
Species	Human
Specificity	2N4R: 45.84 kDa, ASYN: 14.46 kDa
Concentration	Total Protein Concentration: 2mg/mL (1mg/ml of tau and 1mg/ml of aSyn)
Purification	Ion-exchange Purified
Expression System	E. coli
Amino Acid Sequence	Tau:<br />MAEPRQEFEVMEDHAGTYGLGDRKDQGGYTMHQDQEGDTDAGLKESPLQTPTEDGSEEPGSETSDAKSTPTAEDVTAPLVDEGAPGKQAAAQPHTEIPEGTTAEEAGIGDTPSLEDEAAGHVTQARMVSKSKDGTGSDDKKAKGADGKTKIATPRGAAPPGQKGQANATRIPAKTPPAPKTPPSSGEPPKSGDRSGYSSPGSPGTPGSRSRTPSLPTPPTREPKKVAVVRTPPKSPSSAKSRLQTAPVPMPDLKNVKSKIGSTENLKHQPGGGKVQIINKKLDLSNVQSKCGSKDNIKHVPGGGSVQIVYKPVDLSKVTSKCGSLGNIHHKPGGGQVEVKSEKLDFKDRVQSKIGSLDNITHVPGGGNKKIETHKLTFRENAKAKTDHGAEIVYKSPVVSGDTSPRHLSNVSSTGSIDMVDSPQLATLADEVSASLAKQGL<br />Asyn: <br />MDVFMKGLSKAKEGVVAAAEKTKQGVAEAAGKTKEGVLYVGSKTKEGVVHGVATVAEKTKEQVTNVGGAVVTGVTAVAQKTVEGAGSIAAATGFVKKDQLGKNEEGAPQEGILEDMPVDPDNEAYEMPSEEGYQDYEPEA
Cite This Product	Human Recombinant Tau and Alpha Synuclein Co-Polymer Fibrils (StressMarq Biosciences Inc. \| Victoria BC CANADA \| Catalog # SPR-495B)
Nature	Recombinant
Protein Length	Full Length (Tau 2N4R: 1-441 aa, ASYN: 1-140 )

Gross Weight (kg)	1.4
Launch Date	2023/03/22
Net Weight (g)	0.01
Swissprot	P10636-8 and P37840-1
Target Details	Tau and Alpha Synuclein Co-Polymer
Research Area	Tangles & Tau, Multiple System Atrophy, Neurodegeneration, Alzheimer's Disease, Parkinson's Disease, Synuclein, Neuroscience

Adr Code	Non-hazardous
Country Of Origin	Canada
Tarriff Code	3822.19.0030
Un Code For Transport	Non-hazardous
Unspsc Code	12352202
Shipping Temperature	Dry Ice. Shipping note: Product will be shipped separately from other products purchased in the same order.
Purity	>95%
Storage Buffer	1X PBS pH 7.4
Storage Temperature	-80°C

Applications	SDS PAGE, In vitro assay, WB

Reference	1. Goedert et al. Multiple Isoforms of Human Microtubule-associated Protein Tau: Sequences and Localization in Neurofibrilary Tangles of Alzheimer s Disease. Neuron. 1989;3(4):519-526. 2. Jensen et al. alpha-synuclein Binds to Tau and Stimulates the Protein Kinase A-catalyzed Tau Phosphorylation of Serine Residues 262 and 356. 1999. JBC. 274(36): 25481-25489. DOI:https://doi.org/10.1074/jbc.274.36.25481 3. Giasson et al. Initiation and Synergistic Fibrillization of Tau and Alpha-Synuclein. Science. 2003; 300: 636-40. DOI: 10.1126/science.1082324 4. Guo et al. Distinct alpha-synuclein Strains Differentially Promote Tau Inclusions in Neurons. 2013. Cell. 154(1) doi:10.1016/j.cell.2013.05.057. 5. Williams et al. Differential Cross-seeding Properties of Tau and alpha-synuclein in Mouse Models of Tauopathy and Synucleinopathy. Brain Communications. 2020; 2(2):fcaa090. doi:10.1093/braincomms/fcaa090 6. Pan et al. Tau Accelerates alpha-synuclein Aggregation and Spreading in Parkinson s Disease. 2022. Brain. Doi: 10.1093/brain/awac171

Product Manual	Datasheet

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Combination SKU	Supplier No.	Size	Your price	Quantity
BHP11901224-1	SPR-495B	100 ug	$740		Add to Cart
BHP11901224-2	SPR-495C	100 ug x2	$1325		Add to Cart
BHP11901224-3	SPR-495E	100 ug x5	$2575		Add to Cart

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