Biotin Anti-CD8 antibody [MEM-31] (ab28090)
![Flow Cytometry - Biotin Anti-CD8 antibody [MEM-31] (ab28090)](https://www.abcam.com/ps/products/28/ab28090/Images/ab28090-38991-anti-cd8-antibody-mem-31-biotin-flow-cytometry.jpg "Flow Cytometry - Biotin Anti-CD8 antibody [MEM-31] (ab28090)")
Key features and details
- Biotin Mouse monoclonal [MEM-31] to CD8
- Suitable for: Flow Cyt
- Reacts with: Human
- Conjugation: Biotin
- Isotype: IgG2a
Overview
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Product name
Biotin Anti-CD8 antibody [MEM-31]
See all CD8 primary antibodies -
Description
Biotin Mouse monoclonal [MEM-31] to CD8 -
Host species
Mouse -
Conjugation
Biotin -
Specificity
ab28090 recognizes CD8 antigen. -
Tested applications
Suitable for: Flow Cytmore details
Unsuitable for: WB -
Species reactivity
Reacts with: Human -
Immunogen
Tissue/ cell preparation (Human) Crude thymus membrane fraction
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Epitope
ab28090 recognizes a conformationally dependent epitope of CD8 antigen (does not react with formaldehyde-fixed cells) -
General notes
The purified antibody is conjugated with Biotin-LC-NHS.
Reproducibility is key to advancing scientific discovery and accelerating scientists’ next breakthrough.
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.
Properties
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Form
Liquid -
Storage instructions
Shipped at 4°C. Store at +4°C short term (1-2 weeks). Store at -20°C or -80°C. Avoid freeze / thaw cycle. -
Storage buffer
pH: 7.40
Preservative: 0.097% Sodium azide
Constituent: PBS -
Concentration information loading... -
Purity
Protein A purified -
Clonality
Monoclonal -
Clone number
MEM-31 -
Isotype
IgG2a -
Light chain type
kappa -
Research areas
Associated products
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Alternative Versions
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Isotype control
Applications
Our Abpromise guarantee covers the use of ab28090 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 |
|---|---|---|
| Flow Cyt | Use 1µg for 106 cells. ab18454 - Mouse monoclonal IgG2a, is suitable for use as an isotype control with this antibody.
|
Target
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Function
Identifies 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 disease
Defects 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 similarities
Contains 1 Ig-like V-type (immunoglobulin-like) domain. -
Post-translational
modificationsAll of the five most C-terminal cysteines form inter-chain disulfide bonds in dimers and higher multimers, while the four N-terminal cysteines do not. -
Cellular localization
Secreted and Cell membrane. - Information by UniProt
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Database links
- Entrez Gene: 925 Human
- Omim: 186910 Human
- SwissProt: P01732 Human
- Unigene: 85258 Human
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Form
CD8 beta tissue specificity: Isoform 1, isoform 3, isoform 5, isoform 6, isoform 7 and isoform 8 are expressed in both thymus and peripheral CD8+ T-cells. Expression of isoform 1 is higher in thymus CD8+ T-cells than in peripheral CD8+ T-cells. Expression of isoform 6 is higher in peripheral CD8+ T-cells than in thymus CD8+ T-cells. CD8 beta PTM: Phosphorylated as a consequence of T-cell activation. -
Alternative names
- CD8 antibody
- CD8 antigen, alpha polypeptide (p32) antibody
- CD8a antibody
see all
Images
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Flow Cytometry - Biotin Anti-CD8 antibody [MEM-31] (ab28090)Overlay histogram showing peripheral blood lymphocytes stained with ab28090 (red line). The cells were incubated with the antibody (ab28090, 1µg/1x106 cells) followed by Streptavidin-FITC conjugated protein for 30 min at 4ºC. Isotype control antibody (black line) was mouse IgG2a [ICIGG2A] (ab91361, 1µg/1x106 cells) with secondary antibody DyLight® 488 goat anti-mouse IgG (H+L) (ab96879) at 1/500 dilution used under the same conditions. Acquisition of >5,000 events was performed gating on peripheral blood lymphocytes.
References (1)
ab28090 has been referenced in 1 publication.
- Horejsí V et al. Monoclonal antibodies against human leucocyte antigens. I. Antibodies against beta-2-microglobulin, immunoglobulin kappa light chains, HLA-DR-like antigens, T8 antigen, T1 antigen, a monocyte antigen, and a pan-leucocyte antigen. Folia Biol (Praha) 32:12-25 (1986). PubMed: 2422063
