2 Union Square, Union City, CA 94587

Home >> Antibodies >> CD99 / MIC2 (Ewing's Sarcoma Marker)

CD99 / MIC2 (Ewing's Sarcoma Marker)

Mouse Monoclonal Antibody [Clone [12E7]]

Catalog #


0.1 ml
0.5 ml

Price (USD)



Culture Supernatant
Culture Supernatant

Catalog No


0.1 ml
0.5 ml


Culture Supernatant
Culture Supernatant

Price (USD)


Formalin-fixed, paraffin-embedded human Ewing's Sarcoma stained with CD99 Monoclonal Antibody (12E7).

Product Details


12E7; E2 antigen; MIC 2X; MIC 2Y; MIC2; Protein MIC2; Surface antigen MIC2; T-cell surface glycoprotein E2

Positive Control

MOLT-4 cells. Pancreas or Ewing's sarcoma.

Known Applications & Suggested Dilutions

Flow Cyt, IF, IHC-P         More Details

Flow Cytometry (5-10ul/million cells)
Immunofluorescence (1:50-1:100)
Immunohistochemistry (Formalin-fixed) (1:50-1:100 for 30 minutes at RT)(Staining of formalin-fixed tissues requires heating tissue sections in 10mM Tris with 1mM EDTA, pH 9.0, for 45 min at 95°C followed by cooling at RT for 20 minutes)
Optimal dilution for a specific application should be determined.


Human acute lymphocytic leukemia T-cells

Cellular Localization

Cell surface

Species Reactivity


Host / Ig Isotype

Mouse / IgG1, kappa

Mol. Weight of Antigen


Specificity & Comments

Recognizes a sialoglycoprotein of 27-32kDa, identified as CD99, or MIC2 gene product, or E2 antigen. MIC2 gene is located in the pseudo-autosomal region of the human X and Y chromosome. MIC2 gene encodes two distinct proteins, which are produced by alternative splicing of the CD99 gene transcript and are identified as bands of 30 and 32kDa (p30/32).Although its function is not fully understood, CD99 is implicated in various cellular processes including homotypic aggregation of T cells, upregulation of T cell receptor and MHS molecules, apoptosis of immature thymocytes and leukocyte diapedesis.CD99 is expressed on the cell membrane of some lymphocytes, cortical thymocytes, and granulosa cells of the ovary. Most pancreatic islet cells, Sertoli cells of the testis, and some endothelial cells express this antigen. Mature granulocytes express very little or no CD99. MIC2 is strongly expressed on Ewing's sarcoma cells and primitive peripheral neuroectodermal tumors.

Related Products

Tissue culture supernatant with 0.05% Azide. Contact us if you require it in a different format.

Key References

  1. Levy R, Dilley J, Fox RI, Warnke R. A human thymus-leukemia antigen defined by hybridoma monoclonal antibodies. PNAS USA 1979;76(12):6552-6


  •  Entrez Gene ID: 4267
  •  Gene Symbol: CD99
  •  SwissProt: P14209
  •  Chromosome Location: Xp22.33
  •  Unigene: 653349