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FITC-Labeled Monoclonal Anti-G4S linker Antibody, Rabbit IgG (016) (0.03% Proclin)

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  • 抗体来源(Source)

    Monoclonal Anti-G4S linker Antibody, Rabbit IgG (016) is a rabbit monoclonal antibody recombinantly expressed from human 293 cells (HEK293), which provides higher batch consistency and long term security of supply.

  • 应用(Application)

    Flow Cytometry (Evaluation of cell surface expressed CARs of varying specificity containing a G4S linker within the scFv of the extracellular domain).

  • 克隆号(Clone)

    016

  • 种属(Species)

    Rabbit

  • 亚型(Isotype)

    Rabbit IgG | Rabbit Kappa

  • 特异性(Specificity)

    Specifically recognizes the scFv-based CARs containing a G4S linker.

  • 偶联(Conjugate)

    FITC

    Excitation source: 488 nm spectral line, argon-ion laser

    Excitation Wavelength: 488 nm

    Emission Wavelength: 535 nm

  • 推荐稀释比(Recommended Dilution)

    1:50

  • 制剂(Formulation)

    Lyophilized from 0.22 μm filtered solution in PBS, 0.03% Proclin 300, pH7.4 with trehalose as protectant.

    Contact us for customized product form or formulation.

  • 重构方法(Reconstitution)

    Please see Certificate of Analysis for specific instructions.

    For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

  • 存储(Storage)

    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.
  • 质量管理控制体系(QMS)

    1. 质量管理体系(ISO, GMP)
    2. 质量优势
    3. 质控流程

产品展示

  • 活性(Bioactivity)-FACS

     G4S linker FACS

    Flow cytometric analysis of Anti-MSLN CAR-293 cells staining with FITC-Labeled Monoclonal Anti-G4S linker Antibody, Rabbit IgG (016) (Cat. No. G4S-FAFYP1) at 1:50 dilution (2 μL of the antibody stock solution corresponds to labeling of 1e6 cells in a final volume of 100 µL), compared with negative control. FITC signal was used to evaluate the binding activity (QC tested).

    Protocol
  •  G4S linker FACS

    Non-specificity of FITC-Labeled Monoclonal Anti-G4S linker Antibody, Rabbit IgG (016) (Cat. No. G4S-FAFYP1) binding to CD3+ cells present in human PBMC. 5e5 of human PBMCs were simultaneously stained with PE anti-CD3 antibody and FITC-Labeled Monoclonal Anti-G4S linker Antibody, Rabbit IgG (016) (2 μL of the antibody stock solution corresponds to labeling of 5e5 cells in a final volume of 100 µL) and washed and then analyzed with FACS. Both PE and FITC positive signals was used to evaluate the non-specific binding activity to human CD3+ cells (QC tested).

    Protocol
  •  G4S linker FACS

    Flow cytometric analysis of Anti-CD22 CAR-293 cells staining with FITC-Labeled Monoclonal Anti-G4S linker Antibody, Rabbit IgG1 (016) (Cat. No. G4S-FAFYP1) at 1:50 dilution (2 μL of the antibody stock solution corresponds to labeling of 1e6 cells in a final volume of 100 µL), compared with isotype control antibody. FITC signal was used to evaluate the binding activity (Routinely tested).

    Protocol
  •  G4S linker FACS

    Flow cytometric analysis of Anti-CD19 CAR-293 cells staining with FITC-Labeled Monoclonal Anti-G4S linker Antibody, Rabbit IgG1 (016) (Cat. No. G4S-FAFYP1) at 1:50 dilution (2 μL of the antibody stock solution corresponds to labeling of 1e6 cells in a final volume of 100 µL), compared with isotype control antibody. FITC signal was used to evaluate the binding activity (Routinely tested).

    Protocol
  • Compared Data

     G4S linker COMPARED_DATA

    Flow cytometric analysis of Anti-MSLN CAR-293 cells staining with FITC-Labeled Monoclonal Anti-G4S linker Antibodies. FITC signal was used to evaluate the binding activity of anti-G4S linker antibody. The biological activity level of G4S-FAFYP1 is superior to Competitor-H (Routinely tested).

    Protocol
  •  G4S linker COMPARED_DATA

    Flow cytometric analysis of Anti-CD22 CAR-293 cells staining with FITC-Labeled Monoclonal Anti-G4S linker Antibodies. FITC signal was used to evaluate the binding activity of anti-G4S linker antibody. The biological activity level of G4S-FAFYP1 is superior to Competitor-H (Routinely tested).

    Protocol

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背景介绍

The G4S linker is emerged as the most common linking peptides for scFvs. It is composed of the repeated sequence (Gly-Gly-Gly-Gly-Ser) and commonly found as either a 15-mer (G4S)3 or 20-mer(G4S)4 within scFv fragments. The G4S linker has become an integral part of the vast majority of CARs as it links the VH and VL recognition domains of scFvs. The G4S linker is commonly used in CARs targeting solid tumor antigens, such as HER2 and CEA, while the whitlow/218 linker peptide is predominantly used in CAR constructs targeting hematological malignancies such as CD19 CAR products.

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