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HLA-E Antibody (Center)
Affinity Purified Rabbit Polyclonal Antibody (Pab)
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- BACKGROUND
Application 
| WB, E |
|---|---|
| Primary Accession | P13747 |
| Reactivity | Human |
| Host | Rabbit |
| Clonality | Polyclonal |
| Isotype | Rabbit IgG |
| Calculated MW | 40058 Da |
| Antigen Region | 108-135 aa |
| Gene ID | 3133 |
|---|---|
| Other Names | HLA class I histocompatibility antigen, alpha chain E, MHC class I antigen E, HLA-E, HLA-62, HLAE |
| Target/Specificity | This HLA-E antibody is generated from rabbits immunized with a KLH conjugated synthetic peptide between 108-135 amino acids from the Central region of human HLA-E. |
| Dilution | WB~~1:1000 |
| Format | Purified polyclonal antibody supplied in PBS with 0.09% (W/V) sodium azide. This antibody is purified through a protein A column, followed by peptide affinity purification. |
| Storage | Maintain refrigerated at 2-8°C for up to 2 weeks. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles. |
| Precautions | HLA-E Antibody (Center) is for research use only and not for use in diagnostic or therapeutic procedures. |
| Name | HLA-E {ECO:0000303|PubMed:9486650, ECO:0000312|HGNC:HGNC:4962} |
|---|---|
| Function | Non-classical major histocompatibility class Ib molecule involved in immune self-nonself discrimination. In complex with B2M/beta-2-microglobulin binds nonamer self-peptides derived from the signal sequence of classical MHC class Ia molecules (VL9 peptides - VMAPRT[V/L][L/V/I/F]L) (PubMed:18083576, PubMed:18339401, PubMed:35705051, PubMed:37264229, PubMed:9754572). Peptide-bound HLA-E- B2M heterotrimeric complex primarily functions as a ligand for natural killer (NK) cell inhibitory receptor KLRD1-KLRC1, enabling NK cells to monitor the expression of other MHC class I molecules in healthy cells and to tolerate self (PubMed:17179229, PubMed:18083576, PubMed:37264229, PubMed:9486650, PubMed:9754572). Upon cellular stress, preferentially binds signal sequence-derived peptides from stress- induced chaperones and is no longer recognized by NK cell inhibitory receptor KLRD1-KLRC1, resulting in impaired protection from NK cells (PubMed:12461076). Binds signal sequence-derived peptides from non- classical MHC class Ib HLA-G molecules and acts as a ligand for NK cell activating receptor KLRD1-KLRC2, likely playing a role in the generation and effector functions of adaptive NK cells and in maternal- fetal tolerance during pregnancy (PubMed:30134159, PubMed:37264229, PubMed:9754572). Besides self-peptides, can also bind and present pathogen-derived peptides conformationally similar to VL9 peptides to alpha-beta T cell receptor (TCR) on unconventional CD8-positive cytotoxic T cells, ultimately triggering antimicrobial immune response (PubMed:16474394, PubMed:20195504, PubMed:30087334, PubMed:34228645). Presents HIV gag peptides (immunodominant KAFSPEVIPMF and subdominant KALGPAATL epitopes) predominantly to CD8-positive T cell clones expressing a TRAV17-containing TCR, triggering HLA-E-restricted T cell responses (PubMed:34228645). Presents mycobacterial peptides to HLA-E- restricted CD8-positive T cells eliciting both cytotoxic and immunoregulatory functions (PubMed:20195504, PubMed:35705051). |
| Cellular Location | Cell membrane; Single-pass type I membrane protein. Golgi apparatus membrane |
| Tissue Location | Expressed in secretory endometrial cells during pregnancy (at protein level). The expression in nonlymphoid tissues is restricted to endothelial cells from all types of vessels, including arteries, veins, capillaries, and lymphatics (at protein level). In lymphoid organs, it is mainly expressed in endothelial venules, B and T cells, monocytes, macrophages, NK cells and megakaryocytes (at protein level). |
Research Areas
Citations (0)
Thousands of laboratories across the world have published research that depended on the performance of antibodies from Abcepta to advance their research. Check out links to articles that cite our products in major peer-reviewed journals, organized by research category.
Submit your citation using an Abcepta antibody to
info@abcepta.com, and receive a free "I Love Antibodies" mug.
info@abcepta.com, and receive a free "I Love Antibodies" mug.
Application Protocols
Provided below are standard protocols that you may find useful for product applications.
Background
HLA-E preferably binds to a peptide derived from the signal sequence of most HLA-A, -B, -C and -G molecules.
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$ 182.50
$ 70.00
Cat# AP8517C
Ordering Information
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