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  • RI-EXT peptide

    For research use only. NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE.

    Catalog Number: MPE0005625

    Product Quantity: 5mg/20mg

    Price: Varies

    Availability: In Stock

    Online Inquiry

    Product Information

    There is no cure or prevention treatment for Type 1 Diabetes (T1D). Insulin peptide InsB:9-23 (SHLVEALYLVCGERG) and HLA-DQ8 molecule are key elements in T1D development. A retro-inverso-d-amino acid based peptide RI-EXT (ffGGreGcvlylaevlhsG) could block the binding between InsB:9-23 and HLA-DQ8. RI-EXT blocks the presentation of InsB:9-23 to autoreactive T-cells. RI-EXT could lead to innovative therapies for the treatment of T1D.

    Product Name: RI-EXT peptide
    Molecular Formula: C94H140N24O26S
    Molecular Weight: 2054.32
    Sequence: ffGGreGcvlylaevlhsG (lower case letters on behalf of D-amino acid)
    Three letter code: H-D-Phe-D-Phe-Gly-Gly-D-Arg-D-Glu-Gly-D-Cys-D-Val-D-Leu-D-Tyr-D-Leu-D-Ala-D-Glu-D-Val-D-Leu-D-His-D-Ser-Gly-OH
    Length (aa): 66
    Peptide Purity (HPLC): >95%; 98% and 99% purity available upon request
    Quantity/Unit: 1 Vial
    * Optional Service: TFA Removal Service is available upon request.

    Technical Information

    Source: Synthetic
    Storage Guidelines: Store at -20°C for up to 1 year. should be refrigerated after reconstitution. For more details, please refer to the manual: Handling and Storage of Synthetic Peptides
    Solubility: Soluble in water
    Appearance: White to off-white powder
    Shipping: Peptides are shipped at ambient temperature by standard shipment process.
    About TFA salt: Trifluoroacetic acid (TFA) is a strong acid, which is commonly used to cleave synthesized peptides from solid-phase resins and is also used to improve HPLC performance in the peptide purification step. By default, custom peptides are delivered as lyophilized TFA salts, and can contain as much as 10-45% TFA.
    TFA in custom peptides can cause inexplicable discrepancies in subsequent assay data. For instance, TFA in nM concentrations has been shown to interfere with cellular assays, inhibiting cellular proliferation in some instances, and increasing cell viability in others. It has also been found to be an unintended allosteric modulator of the glycine receptor, GlyR.
    TFA Removal Service is recommended for: > Peptides that will be used in cellular assays > Peptides that will be used as APIs or in manufactured products > For hydrophilic peptides containing numerous basic residues

    Related Products / Services

    Custom Peptide Synthesis:   RI-EXT peptide peptide synthesis services include standard chemical peptide synthesis, peptide modification, peptide libraries, and recombinant peptide expression. Read more...

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