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Your Position: Home > All Other Proteins > Siglec-3 > CD3-HP2E3

PE-Labeled Human Siglec-3 / CD33 Protein, His Tag (Site-specific conjugation)

  • Synonym
    CD33,SIGLEC3,gp67
  • Source
    PE-Labeled Human Siglec-3, His Tag (CD3-HP2E3) is produced via site-specific conjugation of PE to Human Siglec-3, His Tag under optimal conditions with a proprietary technology. Human Siglec-3, His Tag is expressed from human 293 cells (HEK293). It contains AA Asp 18 - His 259 (Accession # AAH28152.1).
    Predicted N-terminus: Asp 18
  • Molecular Characterization
    Online(Asp 18 - His 259) AAH28152.1

    This protein carries a polyhistidine tag at the C-terminus.

    The protein has a calculated MW of 29.4 kDa.

  • Application
    Evaluation of anti-CD33 CAR expression by flow cytometry (Please note that this product is NOT compatible to streptavidin detection system).
  • Conjugate

    PE

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

    Excitation Wavelength: 488 nm

    Emission Wavelength: 575 nm

  • Formulation

    Lyophilized from 0.22 μm filtered solution in PBS, 0.5% BSA, pH7.4. Normally trehalose is added as protectant before lyophilization.

    Contact us for customized product form or formulation.

  • 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.

  • Storage

    For long term storage, the product should be stored at 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 12 months in lyophilized state;
    2. -70°C for 3 months under sterile conditions after reconstitution.
Bioactivity-FACS
FACS assay shows that recombinant Biotinylated FACS

5e5 of anti-Siglec-3 CAR-293 cells were stained with 100 μL of 1:50 dilution (2 μL stock solution in 100 μL FACS buffer) of PE-Labeled Human Siglec-3, His Tag (Cat. No. CD3-HP2E3) and negative control protein respectively. PE signal was used to evaluate the binding activity (QC tested).

  • Background
    Myeloid cell surface antigen CD33 is also known as SIGLEC3, Siglecs (sialic acid binding Ig­like lectins) and GP67, is a single-pass type I membrane protein which belongs to the immunoglobulin superfamily and SIGLEC (sialic acid binding Ig-like lectin) family. Human CD33 / Siglec-3 cDNA encodes a 364 amino acid (aa) polypeptide with a hydrophobic signal peptide, an N-­terminal Ig-­like V­-type domain, one Ig­-like C2-­type domains, a transmembrane region and a cytoplasmic tail. CD33 / Siglec-3 usually considered myeloid-specific, but it can also be found on some lymphoid cells. In the immune response, CD33 / Siglec-3 may act as an inhibitory receptor upon ligand induced tyrosine phosphorylation by recruiting cytoplasmic phosphatase(s) via their SH2 domain(s) that block signal transduction through dephosphorylation of signaling molecules. CD33 / Siglec-3 induces apoptosis in acute myeloid leukemia.
  • Clinical and Translational Updates
      
  • Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.

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Price(USD) : $319.00

Price(USD) : $1980.00

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  • Latest Research Phase:Approved

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