CD94 Antibody (YA4704)

Cat. No.: HY-P85012: Data Sheet User Guide for Antibodies
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CD94 Antibody (YA4704) is a Mouse-derived and non-conjugated monoclonal antibody, targeting to CD94.

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

Size		Stock
50 μL		Get quote
100 μL		Get quote

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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
Background
Documentation

Description

CD94 Antibody (YA4704) is a Mouse-derived and non-conjugated monoclonal antibody, targeting to CD94.

Host

Mouse

Clonality

Monoclonal

Species Reactivity

Human

SwissProt ID

Q13241

Gene ID

3824 [NCBI]

Immunogen

Purified recombinant Human CD94

Application &
Dilution Ratio

Application	Dilution Ratio
ELISA ELISA: Enzyme Linked Immunosorbent Assay	1:5000-100000
FC FC: Flow Cytometry	1-2μg/Test

Purity	affinity purified.	Conjugation	Non-conjugated
Modification	Unmodified

Appearance

Liquid

Formulation

Supplied in Phosphate-buffered solution.

Storage & Stability

Stored at -20°C for 1 year. Avoid repeated freeze / thaw cycles.

Shipping

Shipping with blue ice.

Background

Function：Immune receptor involved in self-nonself discrimination. In complex with KLRC1 or KLRC2 on cytotoxic and regulatory lymphocyte subsets, recognizes non-classical major histocompatibility (MHC) class Ib molecule HLA-E loaded with self-peptides derived from the signal sequence of classical MHC class Ia and non-classical MHC class Ib molecules (PubMed:10023772, PubMed:18064301, PubMed:18083576, PubMed:37264229, PubMed:9486650, PubMed:9754572). Enables cytotoxic cells to monitor the expression of MHC class I molecules in healthy cells and to tolerate self (PubMed:12387742, PubMed:18064301, PubMed:9430220). Primarily functions as a ligand binding subunit as it lacks the capacity to signal; KLRD1-KLRC1 acts as an immune inhibitory receptor. Key inhibitory receptor on natural killer (NK) cells that regulates their activation and effector functions (PubMed:30860984, PubMed:9430220, PubMed:9485206, PubMed:9486650). Dominantly counteracts T cell receptor signaling on a subset of memory/effector CD8-positive T cells as part of an antigen-driven response to avoid autoimmunity (PubMed:12387742). On intraepithelial CD8-positive gamma-delta regulatory T cells triggers TGFB1 secretion, which in turn limits the cytotoxic programming of intraepithelial CD8-positive alpha-beta T cells, distinguishing harmless from pathogenic antigens (PubMed:18064301). In HLA-E-rich tumor microenvironment, acts as an immune inhibitory checkpoint and may contribute to progressive loss of effector functions of NK cells and tumor-specific T cells, a state known as cell exhaustion (PubMed:30503213, PubMed:30860984). Upon HLA-E-peptide binding, transmits intracellular signals through KLRC1 immunoreceptor tyrosine-based inhibition motifs (ITIMs) by recruiting INPP5D/SHIP-1 and INPPL1/SHIP-2 tyrosine phosphatases to ITIMs, and ultimately opposing signals transmitted by activating receptors through dephosphorylation of proximal signaling molecules (PubMed:12165520, PubMed:9485206); KLRD1-KLRC2 acts as an immune activating receptor (PubMed:15940674, PubMed:9655483). On cytotoxic lymphocyte subsets recognizes HLA-E loaded with signal sequence-derived peptides from non-classical MHC class Ib HLA-G molecules, likely playing a role in the generation and effector functions of adaptive NK cells and in maternal-fetal tolerance during pregnancy (PubMed:30134159, PubMed:9754572). Regulates the effector functions of terminally differentiated cytotoxic lymphocyte subsets, and in particular may play a role in adaptive NK cell response to viral infection (PubMed:20952657, PubMed:21825173). Upon HLA-E-peptide binding, transmits intracellular signals via the adapter protein TYROBP/DAP12, triggering the phosphorylation of proximal signaling molecules and cell activation (PubMed:15940674, PubMed:9655483); (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. Recognizes HLA-E in complex with human cytomegalovirus UL40-derived peptide (VMAPRTLIL) and inhibits NK cell cytotoxicity; (Microbial infection) May recognize HLA-E in complex with 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). On NK cells, may recognize HLA-E in complex with SARS-CoV-2 S/Spike protein S1-derived peptide (LQPRTFLL) expressed on the surface of lung epithelial cells, inducing NK cell exhaustion and dampening antiviral immune surveillance (PubMed:32859121)

Subcellular Localization：Cell membrane; Single-pass type II membrane protein

Expression：
Tissue_specificity:Expression at protein levels in NK cell subsets (PubMed:21825173, PubMed:9430220, PubMed:9485206) . Expression at protein levels in memory/effect CD8-positive αβ T cell subsets (PubMed:12387742, PubMed:20952657) . Expression at protein levels in melanoma-specific cytotoxic T cell clones (PubMed:9485206) . Expression at protein levels in terminally differentiated cytotoxic γδ T cells (PubMed:20952657) . KLRD1-KLRC1 and KLRD1-KLRC2 are differentially expressed in NK cell and T cell populations, with only a few subsets simultaneously expressing both receptor complexes (PubMed:20952657) .

Isoforms & Post-Translational Modification：Q13241 has 3 isomers: Q13241-1: 20513 Da (predicted); Q13241-2: 20641 Da (predicted); Q13241-3: 17109 Da (predicted).

Subunit：Can form disulfide-bonded heterodimer with NKG2 family members KLRC1 and KLRC2 (PubMed:18083576, PubMed:18332182, PubMed:18448674, PubMed:9655483). KLRD1-KLRC1 heterodimer interacts with peptide-bound HLA-E-B2M heterotrimeric complex. KLRD1 plays a prominent role in directly interacting with HLA-E (PubMed:18083576). KLRD1-KLRC1 interacts with much higher affinity with peptide-bound HLA-E-B2M than KLRD1-KLRC2 (PubMed:10428963, PubMed:9486650). Interacts with the adapter protein TYROBP/DAP12; this interaction is required for cell surface expression and cell activation (PubMed:15940674, PubMed:9655483)

Synonyms

KLRD1; CD94; Natural killer cells antigen CD94; KP43; Killer cell lectin-like receptor subfamily D member 1; NK cell receptor; CD antigen CD94; CD94 nanobody;

Documentation

User Guide for Antibodies (1077 KB)