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Alexa Fluor® 647 Mouse Anti-Human Disialoganglioside GD2 14.G2a RUO

Alexa Fluor® 647 Mouse Anti-Human Disialoganglioside GD2 

Clone  14.G2a   (RUO)

  • Brand BD Pharmingen™
  • Vol. Per Test 5 µl
  • Isotype Mouse BALB/c IgG2a
  • Reactivity Human (QC Testing) 
  • Application Flow cytometry (Routinely Tested) 
  • Immunogen LAN-1 human neuroblastoma cells
  • Storage Buffer Aqueous buffered solution containing BSA, protein stabilizer, and ≤0.09% sodium azide.
  • Regulatory Status RUO
Product Details Recommended Assay References

Description

Gangliosides are sialic-acid bearing glycolipids that are expressed on the surface of all mammalian cells, and are likely involved in mediating cell-substratum interactions. They are important target antigens for antibody dependent cellular cytotoxicity (ADCC) of human melanoma and neuroblastoma cells. Human melanoma cells produce gangliosides, designated as GD2 and GD3 which are deposited in the subtratum-attached material, and may play a significant role in the melanoma metastatic phenotype. Clone 14.G2a specifically reacts with human and mouse GD2 ganglioside. LAN-1 human neuroblastoma cells were used as immunogen. Clone 14.G2a is an isotype switch variant selected from the parental IgG3-producing hybridoma 14.18 and has identical reactivity as the parental antibody. Clone 14.G2a is routinely tested by flow cytometry using M21 human melanoma cells.

Format
  • Format Alexa Fluor® 647
  • Excitation Source Red 633 nm
  • Excitation Max 650 nm
  • Emission Max 668 nm

Alexa Fluor® 647 conjugates are highly photostable and remain fluorescent over a broad pH range. The excitation and emission maxima are nearly identical to those of APC. However, APC tends to be brighter while Alexa Fluor® 647 is more optimal for intracellular applications. This fluorochrome exhibits uncommon photostability, making it an ideal choice for use in fluorescence microscopy. Due to nearly identical excitation and emission properties but different spillover characteristics, APC and Alexa Fluor® 647 cannot be used simultaneously.

Other Formats →

Suggested Companion Products

Alexa Fluor® 647 Mouse IgG2a, κ Isotype Control RUO
100 Tests Cat No: 557715

Stain Buffer (FBS) RUO
500 mL Cat No: 554656

Resources & Tools
 Spectrum Viewer  Panel Designer  Spectrum Viewer  Download TDS  Regulatory Document Website
Preparation and Storage

Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze. The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. The antibody was conjugated to Alexa Fluor® 647 under optimum conditions, and unreacted Alexa Fluor® 647 was removed.

Product Notices

  1. Since applications vary, each investigator should titrate the reagent to obtain optimal results.
  2. The Alexa Fluor®, Pacific Blue™, and Cascade Blue® dye antibody conjugates in this product are sold under license from Molecular Probes, Inc. for research use only, excluding use in combination with microarrays, or as analyte specific reagents. The Alexa Fluor® dyes (except for Alexa Fluor® 430), Pacific Blue™ dye, and Cascade Blue® dye are covered by pending and issued patents.
  3. Alexa Fluor® is a registered trademark of Molecular Probes, Inc., Eugene, OR.
  4. Alexa Fluor® 647 fluorochrome emission is collected at the same instrument settings as for allophycocyanin (APC).
  5. Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
  6. For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
  7. An isotype control should be used at the same concentration as the antibody of interest.
  8. Source of all serum proteins is from USDA inspected abattoirs located in the United States.
  9. Please refer to www.bdbiosciences.com/pharmingen/protocols for technical protocols.


  1. Cheresh DA, Honsik CJ, Staffileno LK, Jung G, Reisfeld RA. Disialoganglioside GD3 on human melanoma serves as a relevant target antigen for monoclonal antibody-mediated tumor cytolysis. Proc Natl Acad Sci U S A. 1985; 82(15):5155-5159. View reference

  2. Cheresh DA, Klier FG. Disialoganglioside GD2 distributes preferentially into substrate-associated microprocesses on human melanoma cells during their attachment to fibronectin. J Cell Biol. 1986; 102(5):1887-1897. View reference

  3. Cheresh DA, Pierschbacher MD, Herzig MA, Mujoo K. Disialogangliosides GD2 and GD3 are involved in the attachment of human melanoma and neuroblastoma cells to extracellular matrix proteins. J Cell Biol. 1986; 102(3):688-696. View reference

  4. Frost JD, Hank JA, Reaman GH, et al. A phase I/IB trial of murine monoclonal anti-GD2 antibody 14.G2a plus interleukin-2 in children with refractory neuroblastoma: a report of the Children's Cancer Group. Cancer. 1997; 80(2):317-333. View reference

  5. Hakomori S. Tumor-associated carbohydrate antigens. Annu Rev Immunol. 1984; 2:103-126. View reference

  6. Lode HN, Reisfeld RA, Handgretinger R, Nicolaou KC, Gaedicke G, Wrasidlo W. Targeted therapy with a novel enediyene antibiotic calicheamicin theta(I)1 effectively suppresses growth and dissemination of liver metastases in a syngeneic model of murine neuroblastoma. Cancer Res. 1998; 58(14):2925-2928. View reference

  7. Mujoo K, Cheresh DA, Yang HM, Reisfeld RA. Disialoganglioside GD2 on human neuroblastoma cells: target antigen for monoclonal antibody-mediated cytolysis and suppression of tumor growth. Cancer Res. 1987; 47(4):1098-1104. View reference

  8. Mujoo K, Kipps TJ, Yang HM, et al. Functional properties and effect on growth suppression of human neuroblastoma tumors by isotype switch variants of monoclonal antiganglioside GD2 antibody 14.18. Cancer Res. 1989; 49(11):2857-2861. View reference

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