Anti-HLA Class I antibody [MEM-123] (ab2217)


  • Product nameAnti-HLA Class I antibody [MEM-123]
    See all HLA Class I primary antibodies
  • Description
    Mouse monoclonal [MEM-123] to HLA Class I
  • SpecificityThis antibody reacts with all human classical MHC Class I molecules in native cell-surface forms as well as with human HLA-G cDNA transfected cells. This antibody completely blocks the binding of pan MHC antibody (ab7855) but does not block binding of anti-HLA-G(ab7758/7904) to surface-expressed HLA-G.
  • Tested applicationsSuitable for: ICC/IF, Flow Cyt, ELISA, IPmore details
  • Species reactivity
    Reacts with: Human, Monkey
  • Immunogen

    Tissue/ cell preparation. COS-7 cells transfected with human CD48.


  • FormLiquid
  • Storage instructionsShipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C or -80°C. Avoid freeze / thaw cycle.
  • Storage bufferPreservative: 15mM Sodium Azide
    Constituents: PBS, pH 7.4
  • Concentration information loading...
  • Purity>95% by SDS-PAGE
  • Purification notesPurified from ascities by protein-A affinity chromatography.
  • ClonalityMonoclonal
  • Clone numberMEM-123
  • Myelomaunknown
  • IsotypeIgG3
  • Light chain typeunknown
  • Research areas


Our Abpromise guarantee covers the use of ab2217 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
ICC/IF Use at an assay dependent concentration.
Flow Cyt Use a concentration of 0.5 - 4 µg/ml.
ELISA Use at an assay dependent concentration.
IP Use at an assay dependent concentration.


Anti-HLA Class I antibody [MEM-123] images

  • Flow Cytometry analysis of human peripheral blood cells labeling HLA Class I with Anti-HLA Class I antibody [MEM-123] (ab2217).
  • ICC/IF image of ab2217 stained HeLa cells. The cells were 4% formaldehyde fixed (10 min) and then incubated in 1%BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab2217, 1µg/ml) overnight at +4°C. The secondary antibody (green) was Alexa Fluor® 488 goat anti-mouse IgG (H+L) used at a 1/1000 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM.

  • Overlay histogram showing Jurkat cells stained with ab2217 (red line). The cells were fixed with 4% paraformaldehyde (10 min) and then permeabilized with 0.1% PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab2217, 0.5µg/1x106 cells) for 30 min at 22ºC. The secondary antibody used was DyLight® 488 goat anti-mouse IgG (H+L) (ab96879) at 1/500 dilution for 30 min at 22ºC. Isotype control antibody (black line) was mouse IgG3 [MG3-35] (ab18394, 1µg/1x106 cells) used under the same conditions. Acquisition of >5,000 events was performed. This antibody gave a positive signal in Jurkat cells fixed with 80% methanol (5 min)/permeabilized with 0.1% PBS-Tween for 20 min used under the same conditions.

References for Anti-HLA Class I antibody [MEM-123] (ab2217)

ab2217 has not yet been referenced specifically in any publications.

Product Wall

Abcam has not validated the combination of species/application used in this Abreview.
Application Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)
Sample Cow Tissue sections (Femoral artery)
Antigen retrieval step Heat mediated - Buffer/Enzyme Used: pH 6 Citrate buffer
Permeabilization No
Specification Femoral artery
Blocking step Dako Serum free protein block (casein X0909) as blocking agent for 30 minute(s) · Concentration: 0.25% · Temperature: 21°C
Fixative Formaldehyde

Abcam user community

Verified customer

Submitted Jun 30 2017

Thank you for contacting us.

To our knowledge our HLA Class I antibodies have not been tested to not detect HLA-G. I did find that our anti-HLA Class I [MEM-123] antibodies have the following specificity:

This antibody reacts with al...

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Thank you for your email. Ab2217 is isotype IgG3; ab9090 is isotype IgG1; and ab3975 is isotype IgG1. You may also find the isotype information on our online datasheets. If you have any additional questions, please contact us again.

This antibody is reactive only with the native form of the protein but not with the denaturated form (i.e it is not suitable for Western blotting). It is not known if it differs from W6/32 significantly. However, there are some data suggesting that W6/...

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