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  • Alpha Synuclein Pre-formed Fibrils

    Human Recombinant Alpha Synuclein PFFs (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 Pre-formed Fibrils: ATTO 594

    Human Recombinant Alpha Synuclein PFFs: ATTO 594 (Type 1)

    Catalog No. SPR-322-A594

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    Expression System E. coli
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    SKU: SPR-322-A594 Category:

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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 Pre-formed Fibrils

    Mouse Recombinant Alpha Synuclein PFFs (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)

  • Amyloid Beta 1-42 Oligomers

    Human Synthetic Amyloid Beta 1-42 Oligomers

    Catalog No. SPR-488

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    Expression System Synthetic
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    SPR-488_Amyloid-Beta-1-42-Oligomers-Protein-TEM-3_panel.png
    WB of Amyloid Beta Peptide Protein (Monomers, Oligomers, and PFFS) (SPR-485, SPR-488, SPR-487)Toxicity of Amyloid Beta Peptide Protein (Monomers, Oligomers, and PFFS) (SPR-485, SPR-488, SPR-487)AFM of Amyloid Beta Peptide Protein (Monomers, Oligomers, and PFFS) (SPR-485, SPR-488, SPR-487)

  • Tau-441 (2N4R) Wild-Type Oligomers

    Human Recombinant Tau-441 (2N4R) Wild-Type Oligomers (Baculovirus/Sf9)

    Catalog No. SPR-497

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    Expression System Baculovirus (Sf9)
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    SPR-497_Tau-441-2N4R-Wild-Type-Oligomers-Protein-AFM-1.png
    Native-PAGE of Tau-441 (2N4R) Wild-Type Oligomers (SPR-497)Toxicity of Tau-441 (2N4R) Wild-Type Oligomers (SPR-497)SDS-Page of Tau-441 (2N4R) Wild-Type Oligomers (SPR-497)Dot Blot of Tau-441 (2N4R) Wild-Type Oligomers (SPR-497)

  • TDP-43 Hexamutant (W→S) Monomers

    Human Recombinant TDP-43 (W68S, W113S, W172S, W334S, W385S, W412S) Mutant Monomers

    Catalog No. SPR-522

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    Expression System E. coli
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    SPR-522_TDP-43-Hexamutant-W→S-Monomers-Protein-SDS-Page-1.png

  • Alpha Synuclein S129A Mutant Pre-formed Fibrils

    Human Recombinant Alpha Synuclein S129A Mutant PFFs

    Catalog No. SPR-506

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    Expression System E. coli
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    SPR-506_Alpha-Synuclein-S129A-Mutant-Pre-formed-Fibrils-Protein-TEM-1.png
    SDS-Page of Human Alpha Synuclein S129A Mutant Pre-formed Fibrils Protein (SPR-506)Thioflavin T assay of Human Alpha Synuclein S129A Mutant Pre-formed Fibrils Protein (SPR-506)Sedimentation assay of Human Alpha Synuclein S129A Mutant Pre-formed Fibrils Protein (SPR-506)TEM of Human Alpha Synuclein S129A Mutant Pre-formed Fibrils Protein (SPR-506)TEM of Human Alpha Synuclein S129A Mutant Pre-formed Fibrils Protein (SPR-506)

  • Tau-441 (2N4R) P301S Mutant Monomers

    Human Recombinant Tau-441 (2N4R) P301S Mutant Monomers

    Catalog No. SPR-327

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    Expression System E. coli
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    SPR-327_Tau-Protein-Monomer-SDS-PAGE-1.png
    Thioflavin T emission curves show increased fluorescence (correlated to tau aggregation) over time in active tau monomers (SPR-327). A greater increase in fluorescence is seen when 50 μM active monomer (SPR-327) is combined with 10 μM of active fibrils (SPR-329 or SPR-330), as the active fibrils seed the formation of new fibrils from the pool of active monomers.

  • HOP Protein

    Human Recombinant HOP Protein

    Catalog No. SPR-302

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    Expression System E. coli
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    SPR-302_HOP_Protein_SDS-Page.png

  • Alpha Synuclein Pre-formed Fibrils

    Human Recombinant Alpha Synuclein PFFs (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.ICC/IF of human Alpha Synuclein Protein Preformed Fibrils Protein (SPR-322)ICC/IF of human Alpha Synuclein Protein Preformed Fibrils Protein (SPR-322)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).