Key features and details
- Alexa Fluor® 488 Mouse monoclonal [OX-8] to CD8 alpha
- Suitable for: Flow Cyt, IHC-P
- Reacts with: Rat
- Conjugation: Alexa Fluor® 488. Ex: 495nm, Em: 519nm
- Isotype: IgG1
Product nameAlexa Fluor® 488 Anti-CD8 alpha antibody [OX-8]
See all CD8 alpha primary antibodies
DescriptionAlexa Fluor® 488 Mouse monoclonal [OX-8] to CD8 alpha
ConjugationAlexa Fluor® 488. Ex: 495nm, Em: 519nm
Tested applicationsSuitable for: Flow Cyt, IHC-Pmore details
Species reactivityReacts with: Rat
Tissue, cells or virus corresponding to Rat CD8 alpha. High molecular weight rat thymocyte glycoproteins
- IHC-P: Normal rat spleen tissue sections.Flow Cyt: Lewis rat splenocytes.
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Abcam is leading the way with our range of recombinant antibodies, knockout-validated antibodies and knockout cell lines, all of which support improved reproducibility.
We are also planning to innovate the way in which we present recommended applications and species on our product datasheets, so that only applications & species that have been tested in our own labs, our suppliers or by selected trusted collaborators are covered by our Abpromise™ guarantee.
In preparation for this, we have started to update the applications & species that this product is Abpromise guaranteed for.
We are also updating the applications & species that this product has been “predicted to work with,” however this information is not covered by our Abpromise guarantee.
Applications & species from publications and Abreviews that have not been tested in our own labs or in those of our suppliers are not covered by the Abpromise guarantee.
Please check that this product meets your needs before purchasing. If you have any questions, special requirements or concerns, please send us an inquiry and/or contact our Support team ahead of purchase. Recommended alternatives for this product can be found below, as well as customer reviews and Q&As.
Storage instructionsShipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C. Avoid freeze / thaw cycle. Stable for 12 months at -20°C. Store In the Dark.
Storage bufferPreservative: 0.02% Sodium azide
Constituents: 30% Glycerol, 1% BSA, PBS
Concentration information loading...
PurityProtein G purified
Light chain typekappa
Our Abpromise guarantee covers the use of ab256296 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|IHC-P||1/50. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.|
FunctionIdentifies cytotoxic/suppressor T-cells that interact with MHC class I bearing targets. CD8 is thought to play a role in the process of T-cell mediated killing. CD8 alpha chains binds to class I MHC molecules alpha-3 domains.
Involvement in diseaseDefects in CD8A are a cause of familial CD8 deficiency (CD8 deficiency) [MIM:608957]. Familial CD8 deficiency is a novel autosomal recessive immunologic defect characterized by absence of CD8+ cells, leading to recurrent bacterial infections.
Sequence similaritiesContains 1 Ig-like V-type (immunoglobulin-like) domain.
modificationsAll of the five most carboxyl-terminal cysteines form inter-chain disulfide bonds in dimers and higher multimers, while the four N-terminal cysteines do not.
Cellular localizationSecreted and Cell membrane.
- Information by UniProt
- alpha polypeptide (p32) antibody
- CD_antigen=CD8a antibody
- CD8 antibody
Lewis rat splenocytes stained with ab256296 (right) or mouse IgG1κ Alexa Fluor® 488 isotype (left). Lewis rat splenocytes were incubated for 30 min on ice in 1x PBS / 10 % rat serum to block FC receptors and non-specific protein-protein interaction followed by the antibody (ab256296) or mouse IgG1κ Alexa Fluor® 488 isotype (1x 106 in 100 µl at 0.2 µg/ml (1/2500)) for 30 min on ice. The cells were simultaneously stained with CD3.
Acquisition of >30,000 events were collected using a 50 mW Blue laser (488nm) and 530/30 bandpass filter. Events were gated on viable lymphocytes.
IHC image of CD8 alpha staining in a section of formalin-fixed paraffin-embedded normal rat spleen.
The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6) in a Biocare Medical NxGen pressure cooker using retrieval settings of 110°C for 20 minutes. Non-specific protein-protein interactions were then blocked in TBS containing 0.025% (v/v) Triton X-100, 0.3M (w/v) glycine and 1% (w/v) BSA for 1h at room temperature. The section was then incubated overnight at +4°C in TBS containing 0.025% (v/v) Triton X-100 and 1% (w/v) BSA with ab256296 at 1/50 dilution (shown in green). Nuclear DNA was labeled with DAPI (shown in blue). The section was then mounted using Fluoromount®.
Image was taken with a confocal microscope (Leica-Microsystems, TCS SP8).
For other IHC staining systems (automated and non-automated), customers should optimize variable parameters such as antigen retrieval conditions, antibody concentrations and incubation times.
To our knowledge, customised protocols are not required for this product. Please try the standard protocols listed below and let us know how you get on.
ab256296 has not yet been referenced specifically in any publications.