APC-Labeled Monoclonal Anti-Whitlow 218 linker Antibody, Rabbit IgG (P3C09) (0.03% Proclin)

Cat. No. / Size
Price
Availability
Qty
218-AHFMY3-25tests
$280.00
In Stock - Delivery in 2-3 business days
218-AHFMY3-200tests
$1490.00
In Stock - Delivery in 2-3 business days

Product Details

  • Source

    APC-Labeled Monoclonal Anti-Whitlow 218 linker Antibody, Rabbit IgG (P3C09) is a monoclonal antibody recombinantly expressed from HEK293 cells, which provides higher batch consistency and long term security of supply.

  • Antibody Type

    Recombinant Monoclonal

  • Clone

    P3C09

  • Isotype

    Rabbit IgG, Kappa

  • Host Species

    Rabbit

  • Reactivity

    Human

  • Immunogen

    Purified 218 linker protein

  • Conjugate

    APC

    Excitation Wavelength: 640 nm

    Emission Wavelength: 661 nm

  • Specificity

    This product is a specific antibody specifically reacts with CAR or scFv containing the 218 linker sequence.

  • Application

    Flow Cytometry (Evaluation of CAR and SCFV containing 218linker on Human cells).

  • Recommended Dilution

    1:50

  • Form

    Lyophilized

  • Formulation

    Lyophilized from a 0.22 μm-filtered solution in PBS (pH 7.4) containing 0.03% ProClin 300 and 0.2% BSA, with trehalose as protectant.

    Please contact us for customized product forms or formulations.

  • Reconstitution

    Please refer to the Certificate of Analysis (CoA) for specific instructions.

  • Shipping

    Lyophilized product is shipped at ambient temperature.

  • Storage

    For long term storage, the product should be stored in a lyophilized state at -20°C or lower.

    Please protect from light and avoid repeated freeze-thaw cycles.

    This product is stable after storage at:

    1. -20°C to -70°C for 24 months in lyophilized state;
    2. -70°C for 12 months after reconstitution.
    3. 2-8 °C for 12 months after reconstitution.
  • Notices

    Product Specific Notices: For research use only.

  • ACRO Quality Management System

    1. QMS(ISO, GMP)
    2. Quality Advantages
    3. Quality Control Process

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Performance Data

  • Bioactivity-Flow Cytometry

     218 linker FACS

    Flow cytometric analysis of Anti-BCMA (C11D5.3) CAR 293 cells staining with APC-Labeled Monoclonal Anti-Whitlow 218 linker Antibody, Rabbit IgG (P3C09) (Cat. No. 218-AHFMY3) at 1:50 dilution (2 μL of the antibody stock solution corresponds to labeling of 1e6 cells in a final volume of 100 µL). APC signal was used to evaluate the binding activity (QC tested).

    Protocol
  • Compared Data

     218 linker COMPARED_DATA

    Flow cytometric analysis of Anti-BCMA (C11D5.3) CAR 293 cells staining with APC-Labeled Monoclonal Anti-Whitlow 218 Linker Antibody, Rabbit IgG (P3C09) (0.03% Proclin) (Cat. No. 218-AHFMY3) at 1:50 dilution (2 μL of the antibody stock solution corresponds to labeling of 1e6 cells in a final volume of 100 µL) and Company C. APC signal was used to evaluate the binding activity. The biological activity level of 218-AHFMY3 is superior to Company C (Routinely tested).

    Protocol

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FAQ

  • product

    Can lyophilized proteins remain stable during room-temperature shipping or temporary room-temperature exposure?

    In general, lyophilized proteins remain stable during room-temperature shipping or temporary exposure to room-temperature conditions.


    Many ACROBiosystems recombinant proteins are supplied in lyophilized (freeze-dried) form. The lyophilization process effectively removes moisture from the product, helping reduce degradation-related reactions and improve protein stability during transportation and storage.


    To evaluate the stability of lyophilized proteins under normal temperature conditions, ACROBiosystems conducted a stability study on 11 representative lyophilized protein products at 37°C. The study demonstrated that these proteins maintained good quality stability after storage at 37°C for approximately 20 days. Based on these validation results, temporary room-temperature exposure during shipping or handling is generally not expected to have a significant impact on product quality or downstream application performance.


    To ensure optimal long-term stability, products should be stored according to the storage conditions specified in the product Certificate of Analysis (COA) upon receipt.


    Supporting Document


Background

The whitlow/218 linker, with the sequence GSTSGSGKPGSGEGSTKG, is a commonly used synthetic peptide linker. Whitlow/218 linker often leveraged to connect the variable heavy (VH) domain and variable light (VL) domain of single-chain variable fragments (scFvs) and chimeric antigen receptors (CARs) that utilize an extracellular domain scFv for target antigen recognition. The scFv containing the 218 linker showed reduced aggregation and was found to be more stable to proteolysis in vitro.

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