Anti-Mouse CD366 (Tim-3) Antibody

Product Details


CloneRMT3-23
ApplicationFlow Cytometry, Block, IHC-F
ReactivityMouse
FormatPurified
Target NameCD366, Tim-3, cell immunoglobulin and mucin domain containing 3 protein, hepatitis virus cellular receptor 2
IsotypeRat IgG2a
Antibody TypeMonoclonal
Regulatory StatusRUO
FormulationPhosphate-buffered solution, pH 7.2, containing 0.09% sodium azide
Protein Concentration0.5 mg/mL
Storage & HandlingThe antibody solution should be stored between 2°C and 8°C
Recommended UsageFor flow cytometric staining, it is recommended to use less than 0.2 µg of this reagent per 0.5-1.0 million cells in a 100 µL volume. Optimal reagent performance should be determined by titration for each specific application
See All FormatsClone RMT3-23

Background Information


Mouse CD336, also known as NKp46 and encoded by the Ncr1 gene, is a natural cytotoxicity receptor expressed almost exclusively on natural killer (NK) cells and a small subset of innate lymphoid cells (ILC1s and ILC3s). It is one of the principal activating receptors that enables NK cells to recognize and eliminate virus-infected, transformed, and stressed cells without prior antigen sensitization. Engagement of CD336 triggers NK cell activation, resulting in the release of cytotoxic granules containing perforin and granzymes, production of cytokines such as interferon-γ (IFN-γ) and tumor necrosis factor-α (TNF-α), and enhancement of immune responses through interactions with dendritic cells and macrophages.

Structurally, mouse CD336 is a type I transmembrane glycoprotein belonging to the immunoglobulin superfamily. It contains two extracellular C2-type immunoglobulin-like domains, a transmembrane region containing a positively charged residue, and a short cytoplasmic tail lacking intrinsic signaling motifs. Signal transduction occurs through association with the adaptor proteins FcRγ and CD3ζ, both of which contain immunoreceptor tyrosine-based activation motifs (ITAMs). CD336 recognizes a diverse range of ligands, including viral hemagglutinins from influenza and other viruses, fungal ligands, and several cellular molecules that are upregulated during cellular stress or malignant transformation. Additional tumor-associated ligands continue to be identified, although many remain incompletely characterized.

CD336 plays a critical role in host defense against viral infections, tumor immune surveillance, and regulation of inflammatory responses. Mice lacking CD336 exhibit impaired NK cell-mediated cytotoxicity and increased susceptibility to certain viral infections and experimental tumors. Conversely, excessive NK cell activation through CD336 may contribute to tissue injury during chronic inflammation. Because of its selective expression on NK cells, CD336 has become an important therapeutic target and biomarker. Anti-NKp46 antibodies are widely used to identify and isolate mouse NK cells, while preclinical therapeutic strategies include NKp46-directed bispecific antibodies, agonists that enhance NK cell activation, and engineered NK cell therapies designed to improve antitumor immunity. These approaches aim to potentiate innate immune responses while minimizing off-target effects on non-NK immune cells.

Isotype Control


Rat IgG2a Isotype Control Antibody

Data Sheets


Anti-Mouse CD366 (Tim-3) Antibody TDS

Related Protocols


Flow Cytometry Protocol

Frequently Asked Questions


How do I determine the optimal antibody concentration/titer for my experiment?
We recommend titrating each new antibody lot on your own cell type and instrument, since optimal concentration depends on cell density, target expression level, and cytometer sensitivity. Suggested starting dilutions or test sizes (e.g., µg or µl per 10^6 cells) are provided on the product page as a starting reference point, not a fixed requirement.

Can these antibodies be used for intracellular or intranuclear staining, or only surface staining?
Intended use (surface, intracellular, or both) is specified per product, indicated under Application. The appropriate Related Protocol is linked for each product. If you need to detect both surface and intracellular markers in the same panel, confirm each antibody's compatibility with your fixation/permeabilization protocol before combining them.

What controls should I use alongside these antibodies?
Matched isotype controls (same host species, isotype, and conjugate) are available for most clones to help distinguish specific binding from background/non-specific staining and are linked on each product page. Unstained, single-color compensation, and fluorescence-minus-one (FMO) controls are also recommended, especially for multicolor panel design.

Can I combine InnoCyto Flow Cytometry antibodies into a multicolor panel?
Yes — antibodies across our catalog are designed to be panel-compatible, and conjugate options are offered specifically to support multiplexing. When building a panel, pair bright fluorophores with low-expression targets, avoid excessive spectral overlap, and confirm compensation is set up correctly for your specific fluorochrome combination. Use our Panel Builder to simplify the process.

Have a product or application question? Consult our FAQs or contact us.