HLA E Antibody (YA3437)

Cat. No.: HY-P83701: Data Sheet COA
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User Guide for Antibodies
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HLA E Antibody (YA3437) is a Mouse-derived and non-conjugated IgG1 monoclonal antibody, targeting to HLA E.

For research use only. We do not sell to patients.

Size	Stock	Quantity
50 μL	In-stock	Estimated Time of Arrival: December 31
100 μL	In-stock	Estimated Time of Arrival: December 31
250 μL	Get quote

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HLA E Antibody (YA3437) Featured Recommendations:

WB: Western Blot;
IHC-P: Immunohistochemistry-Paraffin;
IHC-F: Immunohistochemistry-Frozen;
ICC/IF: Immunocytochemistry/Immunofluorescence;
IF-Tissue: Immunofluorescence-Tissue;
mIHC: Multiplex Immunohistochemical;
IP: Immunoprecipitation;
ChIP: Chromatin Immunoprecipitation;
FC: Flow Cytometry;
ELISA: Enzyme Linked Immunosorbent Assay

Product Detail
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Background
Documentation

Description

HLA E Antibody (YA3437) is a Mouse-derived and non-conjugated IgG1 monoclonal antibody, targeting to HLA E.

Host

Mouse

Clonality

Monoclonal

Molecular Weight

Predicted band size: 40 kDa;

Observed band size: 40 kDa

Note: Due to possible protein modifications or aggregation, the molecular weight should be confirmed by actual measurement, and the predicted value is for reference only.

Species Reactivity

Human

SwissProt ID

P13747

Gene ID

3133 [NCBI]

Immunogen

Recombinant HLA-E of human origin.

Application &
Dilution Ratio

Application	Dilution Ratio
WB WB: Western Blot	1:100-1:1000
IP IP: Immunoprecipitation	1-2 μg per 100-500 μg of total protein(1 ml of cell lysate)
FC FC: Flow Cytometry	1 μg per 1 x 10⁶ cells

Purity	Protein A affinity purified.	Conjugation	Non-conjugated
Modification	Unmodified	Isotype	IgG1

Appearance

Liquid

Formulation

Supplied in PBS with < 0.1% sodium azide and 0.1% gelatin.

Storage & Stability

Stored at 2-8°C for 1 year, do not freeze.

Shipping

Shipping with blue ice.

Verification Image

Western blot analysis of extracts from RaJi (lane 2(20μg), THP-1 (lane 3(20μg), HL60 (lane 4(20μg) and SiHa (lane 5(20μg) usingHLA E Antibody (HY-P83701). Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80993, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature.

Background

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); (Microbial infection) Viruses like human cytomegalovirus have evolved an escape mechanism whereby virus-induced down-regulation of host MHC class I molecules is coupled to the binding of viral peptides to HLA-E, restoring HLA-E expression and inducing HLA-E-dependent NK cell immune tolerance to infected cells; (Microbial infection) May bind HIV-1 gag/Capsid protein p24-derived peptide (AISPRTLNA) on infected cells and may inhibit NK cell cytotoxicity, a mechanism that allows HIV-1 to escape immune recognition; (Microbial infection) Upon SARS-CoV-2 infection, may contribute to functional exhaustion of cytotoxic NK cells and CD8-positive T cells (PubMed:32859121). Binds SARS-CoV-2 S/Spike protein S1-derived peptide (LQPRTFLL) expressed on the surface of lung epithelial cells, inducing NK cell exhaustion and dampening of antiviral immune surveillance (PubMed:32859121)

Subcellular Localization：Cell membrane; Single-pass type I membrane protein; Golgi apparatus membrane; Secreted

Expression：
Tissue_specificity: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)

Induction:Pro-inflammatory cytokines including TNF, IL1B and IFNG up-regulate membrane bound HLA-E expression on endothelial and NK cells and induce the release of soluble HLA-E (sHLA-E) in the extracellular compartment

Positive sample: PBL, BJAB, CCRF- CEM, AML-193.

Subunit：Forms a heterotrimer with B2M and a self- or a pathogen-derived peptide (peptide-bound HLA-E-B2M) (PubMed:18339401, PubMed:30087334, PubMed:35705051).

RRID

AB_3676628

Database

Entrez Gene: 3133 Human

SwissProt: P13747 Human

OMIM: 143010 Human

Synonyms

HLA class I histocompatibility antigen E alpha chain antibody; EA1.2 antibody; EA2.1 antibody; HLA 6.2 antibody; HLA class I histocompatibility antigen alpha chain E antibody; HLA class I histocompatibility antigen E alpha chain precursor antibody; HLA class I histocompatibility antigen E alpha chain precursor antibody; HLA6.2 antibody; HLAE antibody; Lymphocyte antigen antibody; Major histocompatibility complex class I E antibody; MHC antibody; MHC class I antigen E antibody; MHC HLA E alpha 1 antibody; MHC HLA E alpha 2.1 antibody; QA1 antibody;

Documentation

Select Batch:

Data Sheet (236 KB) SDS (254 KB)

COA (205 KB)

User Guide for Antibodies (1077 KB)

HLA E Antibody (YA3437) Related Classifications

Help & FAQs

Do most proteins show cross-species activity?
Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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HLA E Antibody (YA3437)

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