{"product_id":"tau-and-alpha-synuclein-co-polymer-fibrils-bhp11901224","title":"Tau and Alpha Synuclein Co-Polymer Fibrils","description":"\u003ch2\u003eBackground\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eTau\u003c\/strong\u003e is provided as a recombinant protein reagent for \u003cstrong\u003eresearch use only\u003c\/strong\u003e. It is commonly used as a defined molecular component in biochemical and cell-free systems where controlled protein input supports mechanistic study and assay development.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eProtein identity context:\u003c\/strong\u003e Tau (source species: Human).\u003c\/p\u003e\u003cp\u003eHuman Recombinant Tau-441 (2N4R) and Human Recombinant Alpha Synuclein Co-Polymer Fibrils\u003c\/p\u003e\u003cp\u003eBrain-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).\u003c\/p\u003e\u003ch2\u003eBiological significance and function\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eTau\u003c\/strong\u003e is used in RUO research to interrogate molecular mechanisms, interaction networks, and pathway-linked phenotypes in experimental systems. This protein is frequently discussed in research themes such as \u003cstrong\u003eNeuroscience\u003c\/strong\u003e and \u003cstrong\u003eNeurodegeneration\u003c\/strong\u003e.\u003c\/p\u003e\u003ch2\u003eMolecular characteristics\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eMolecular characteristics:\u003c\/strong\u003e Key molecular attributes can influence binding behavior, stability, and assay background—especially for multimeric, disulfide-rich, or PTM-dependent proteins.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSource species:\u003c\/strong\u003e Human\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtein length:\u003c\/strong\u003e Full Length (Tau 2N4R: 1-441 aa, ASYN: 1-140 )\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtein size:\u003c\/strong\u003e 2N4R: 45.84 kDa, ASYN: 14.46 kDa\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e \u0026gt;95%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpression system:\u003c\/strong\u003e E. coli\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurification:\u003c\/strong\u003e Ion-exchange Purified\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage buffer:\u003c\/strong\u003e 1X PBS pH 7.4\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePost-translational considerations:\u003c\/strong\u003e E. coli expression typically yields a non-glycosylated recombinant form. This is often appropriate for intracellular enzymes and many binding studies, but extracellular ligands\/receptors or disulfide-rich proteins may show activity or stability differences when PTMs are required.\u003c\/p\u003e\u003ch2\u003eExpression and purification strategy\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eExpression system:\u003c\/strong\u003e E. coli. Expression host choice can influence folding and PTM state, which may affect binding or activity depending on protein class.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePurification strategy:\u003c\/strong\u003e Ion-exchange Purified. Purification method and formulation help determine sample homogeneity and background in downstream biochemical assays.\u003c\/p\u003e\u003ch2\u003eResearch interpretation\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eResearch interpretation:\u003c\/strong\u003e Recombinant protein reagents can support controlled experiments such as reconstitution of molecular interactions, quantitative calibration, and mechanistic perturbation studies with defined inputs. Interpreting outcomes typically benefits from pairing the primary readout with orthogonal markers that report on pathway state, localization, and complex formation.\u003c\/p\u003e","brand":"StressMarq Biosciences Inc.","offers":[{"title":"100 ug","offer_id":53016294130029,"sku":"SPR-495B","price":740.0,"currency_code":"USD","in_stock":true},{"title":"100 ug x 2","offer_id":53016294162797,"sku":"SPR-495C","price":1325.0,"currency_code":"USD","in_stock":true},{"title":"100 ug x 5","offer_id":53016294195565,"sku":"SPR-495E","price":2575.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/SPR-495_Tau-and-Alpha-Synuclein-co-polymer-fibrils-Protein-TEM-1.png?v=1770644830","url":"https:\/\/www.ebiohippo.com\/products\/tau-and-alpha-synuclein-co-polymer-fibrils-bhp11901224","provider":"BioHippo","version":"1.0","type":"link"}