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  • Alpha Synuclein Protein

    Human Recombinant Alpha Synuclein Protein Pre-formed Fibrils: ATTO 594 (Type 1)

    Catalog No. SPR-322-A594

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    Expression System E. coli
    Tags ATTO 594
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    SPR-322-A594_Alpha-Synuclein-Protein-Protein-TEM-1.png
    Thioflavin T Assay for SPR-322-A594Human iPSC-derived neurons seeded with ATTO594 labelled alpha synuclein PFFs (SPR-322-A594)TEM of ATTO conjugated alpha syuclein pre-formed fibrils

  • Alpha Synuclein Protein

    Human Recombinant Alpha Synuclein Pre-formed Fibrils (Type 1)

    Catalog No. SPR-322

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    Expression System E. coli
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    SPR-322_Alpha-Synuclein-Protein-Preformed-Fibrils-Protein-TEM-7.png
    Αlpha Synuclein Oligomers Have Distinct Secondary Structure Differences Compared to Fibrils.Alpha Synuclein Pre-formed Fibrils (PFF), Type 1 (cat#SPR-322) and Type 2 (cat#SPR-317) do have small secondary structure differences.StressMarq’s Alpha Synuclein PFFs (red) cat#SPR-322, were shown to be taken up by SH-SY5Y cells and transmitted to neuronal iPSCs within 14 days.SDS-Page of Type 1 Human Recombinant Alpha Synuclein Protein Pre-formed Fibrils (SPR-322)Type 1 alpha synuclein Pre-formed Fibrils (SPR-322) seed the formation of new alpha synuclein fibrils from the pool of alpha synuclein monomers (SPR-321) as shown by increased fluorescence intensity by Thioflavin T over time.Immunocytochemistry/Immunofluorescence of Human Alpha Synuclein Protein Protein (SPR-322)Mouse neurocortical primary cells seeded with fluorescently-labelled alpha synuclein PFFsMouse neurocortical primary cells seeded with fluorescently-labelled alpha synuclein PFFs cause endogenous alpha synuclein phosphorylationTEM of Type 1 Alpha Synuclein Pre-formed Fibrils (PFFs) (SPR-322)IHC of Sprague-Dawley rat brain injected with Type 1 human alpha synuclein Pre-formed Fibrils (SPR-322)Primary rat hippocampal neurons show lewy body inclusion formation when treated with Type 1 Alpha Synuclein Protein Pre-formed Fibrils (SPR-322) (D-F), but not when treated with Type 2 Alpha Synuclein Protein Pre-formed Fibrils (SPR-317) (A-C).Toxicity results comparing Active Human Recombinant Alpha Synuclein Pre-formed Fibrils (Type 2) and Active Human Recombinant Alpha Synuclein Pre-formed Fibrils (Type 1)

  • Alpha Synuclein Protein

    Mouse Recombinant Alpha Synuclein Pre-formed Fibrils (Type 1)

    Catalog No. SPR-324

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    Expression System E. coli
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    SPR-324_Alpha-Synuclein-Protein-Preformed-Fibrils-ICC-IF-1.png
    IHC of mouse brain injected with alpha synuclein monomers and fibrilsIHC of mouse brain injected with alpha synuclein monomers and fibrilsIHC of Sprague-Dawley rat brain injected with Type 1 mouse alpha synuclein Pre-formed Fibrils (SPR-324)Mouse hippocampal neurons treated with mouse alpha synuclein PFFs show phosphorylationTEM of Type 1 mouse alpha synuclein Pre-formed Fibrils (SPR-324).Mouse Type 1 alpha synuclein Pre-formed Fibrils (SPR-324) seed the formation of new alpha Synuclein fibrils from the pool of alpha synuclein monomers (SPR-323) as shown by increased fluorescence intensity by Thioflavin T over time.TEM of Type 1 mouse alpha synuclein Pre-formed Fibrils (SPR-324).SDS-Page of Type 1 Mouse Recombinant Alpha Synuclein Protein Pre-formed Fibrils (SPR-324)

  • Alpha Synuclein Protein

    Human Recombinant Alpha Synuclein Pre-formed Fibrils (Type 2)

    Catalog No. SPR-317

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    Expression System E. coli
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    SPR-317_Alpha-Synuclein-Preformed-Fibrils-Protein-TEM-4.png
    TEM of Type 2 Alpha Synuclein Pre-formed Fibrils (PFFs) (SPR-317)Alpha Synuclein Pre-formed Fibrils (PFF), Type 1 (cat#SPR-322) and Type 2 (cat#SPR-317) do have small secondary structure differences.SDS-Page of Type 2 Human Recombinant Alpha Synuclein Protein Pre-formed Fibrils (SPR-317)Type 2 alpha synuclein Pre-formed fibrils (SPR-317) do not seed the formation of new alpha synuclein fibrils from the pool of alpha synuclein monomers (SPR-321) at the same rate as Type 1 alpha synuclein Pre-formed fibrils (SPR-322) as shown by lower fluorescence intensity values of Thioflavin T over time.Primary rat hippocampal neurons show lewy body inclusion formation when treated with Type 1 Alpha Synuclein Protein Pre-formed Fibrils (SPR-322) (D-F), but not when treated with Type 2 Alpha Synuclein Protein Pre-formed Fibrils (SPR-317) (A-C).Toxicity results comparing Active Human Recombinant Alpha Synuclein Pre-formed Fibrils (Type 2) and Active Human Recombinant Alpha Synuclein Pre-formed Fibrils (Type 1)LDH assay shows effect of alpha synuclein PFFs on mouse primary neuronsMTT assay effects of alpha synuclein PFFs on mouse primary neurons

  • Alpha Synuclein Protein

    Human Recombinant Alpha Synuclein Protein Monomers (Type 1)

    Catalog No. SPR-321

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    Expression System E. coli
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    SPR-321_Alpha-Synuclein-Protein-Monomer-Thioflavin-T-assay-1.png
    SDS-Page of huma alpha synuclein monomer (SPR-321)

  • Alpha Synuclein Protein

    Mouse Recombinant Alpha Synuclein Protein Monomers (Type 1)

    Catalog No. SPR-323

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    Expression System E. coli
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    SPR-323_Alpha-Synuclein-Protein-IHC-1.png
    Mouse alpha Synuclein monomers (SPR-323) form new alpha synuclein fibrils through the seeding activity of Type 1 alpha synuclein pre-formed fibrils (SPR-324) as shown by increased fluorescence intensity by Thioflavin T over time.SDS-Page of Mouse Recombinant Alpha Synuclein Protein Monomer (SPR-323)

  • Alpha Synuclein Protein

    Human Recombinant Alpha Synuclein Protein Monomers (Type 2)

    Catalog No. SPR-316

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    Expression System E. coli
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    SPR-316_Alpha-Synuclein-Protein-Monomer-Protein-SDS-Page-1.png
    Alpha Synuclein monomers (SPR-316) do not form new alpha synuclein fibrils when combined with Type 1 alpha synuclein Pre-formed fibrils (SPR-322) as shown by a limited increase in fluorescence intensity by Thioflavin T over time.Alpha Synuclein Monomer RT-QuiC AssayΑlpha Synuclein Oligomers Have Distinct Secondary Structure Differences Compared to Fibrils.Alpha Synuclein Pre-formed Fibrils (PFF), Type 1 (cat#SPR-322) and Type 2 (cat#SPR-317) do have small secondary structure differences.LDH assay shows effect of alpha synuclein monomers on mouse primary neuronsMTT assay shows effects of alpha synuclein monomers on mouse primary neurons

  • AHA1 Protein

    Human Recombinant AHA1 Protein

    Catalog No. SPR-309

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    Expression System E. coli
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    SPR-309_AHA1-Protein-SDS-Page-1.png

  • Tau Protein

    Human Recombinant Tau-441 (2N4R) P301S Mutant Protein Pre-formed Fibrils: ATTO 488

    Catalog No. SPR-329-A488

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    Expression System E. coli
    Tags ATTO 488
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    SPR-329-A488_Tau-Protein-Protein-TEM-1.png
    TEM of ATTO conjugated tau pre-formed fibrilsThioflavin T assay of ATTO-488 conjugated tau fibrils

  • Tau Protein

    Human Recombinant Tau-441 (2N4R) P301S Mutant Protein Pre-formed Fibrils

    Catalog No. SPR-329

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    Expression System E. coli
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    SPR-329_Tau-Protein-Peformed-Fibrils-TEM-1.png
    TEM of recombinant Tau441 (2N4R), P301S mutant Pre-formed Fibrils (PFFs)Thioflavin T emission curves show increased fluorescence (correlated to tau aggregation) when tau Pre-formed fibrils (SPR-329) are combined with tau monomers (SPR-327). The Pre-formed fibrils seed the formation of new fibrils from a pool of monomers.SDS-PAGE of ~67 kDa Human Tau 2N4R P301S Pre-formed Fibrils (PFFs)