Key Product Details

Validated by

Biological Validation

Species Reactivity

Validated:

Human

Applications

Flow (Cell Surface), Flow Cytometry

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgG1 kappa Clone # F38-2E2

Format

BSA Free

Concentration

1.0 mg/ml

View all TIM-3 Antibodies »

Product Summary for TIM-3 Antibody (F38-2E2) - BSA Free

Immunogen

This antibody was raised against recombinant human TIM-3. [Uniprot# Q8TDQ0]

Clonality

Monoclonal

Host

Mouse

Isotype

IgG1 kappa

Scientific Data Images for TIM-3 Antibody (F38-2E2) - BSA Free

Flow Cytometry: TIM-3 Antibody (F38-2E2) - BSA Free [NBP2-27220]

Flow Cytometry: TIM-3 Antibody (F38-2E2) - BSA Free [NBP2-27220]

Flow Cytometry: TIM-3 Antibody (F38-2E2) [NBP2-27220] - Cell surface staining of unstimulated (A) and Con A stimulated (B) human PBMCs with purified human TIM-3 antibody (Red) and mouse IgG1 isotype control (Green)and PE-conjugated secondary antibody this antibody was used for this test (cells were not fixed for testing).
Flow (Cell Surface): TIM-3 Antibody (F38-2E2) - BSA Free [NBP2-27220]

Flow (Cell Surface): TIM-3 Antibody (F38-2E2) - BSA Free [NBP2-27220]

Flow (Cell Surface): TIM-3 Antibody (F38-2E2) [NBP2-27220] - Analysis using the PE conjugate of NBP2-27220. Staining of Con A stimulated human PBMCs with PE-conjugated human TIM-3 antibody (Red) and mouse IgG1 isotype control (Green)was used for this test (cells were not fixed for testing).
Flow (Cell Surface): TIM-3 Antibody (F38-2E2) - BSA Free [NBP2-27220]

Flow (Cell Surface): TIM-3 Antibody (F38-2E2) - BSA Free [NBP2-27220]

Flow (Cell Surface): TIM-3 Antibody (F38-2E2) [NBP2-27220] - hPBMC cells were either stimulated with Con A (panel B) or grown in normal media (panel A). A cell surface stain was performed with TIM-3 (F38-2E2) NBP2-27220 and Mouse IgG1 Kappa NBP2-27287. Cells were incubated with antibody for 20 minutes. A co-stain was also performed with CD4 (RPA-T4) NBP2-27216AF647.

Applications for TIM-3 Antibody (F38-2E2) - BSA Free

Application
Recommended Usage

Flow Cytometry

0.5-1ug/10^6cells
Please Note: Optimal dilutions of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Protein G purified

Formulation

PBS

Format

BSA Free

Preservative

0.05% Sodium Azide

Concentration

1.0 mg/ml

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.

Background: TIM-3

T cell immunoglobulin and mucin-domain containing 3 (TIM-3) is a type I transmembrane protein that functions in suppressing immune cell responses and is considered a checkpoint receptor (1,2). TIM-3 is an inhibitory receptor that was first identified as a cell marker for interferon-gamma (IFN-gamma)-producing CD4+ T helper (Th1) and CD8+ T cytotoxic (Tc1) cells (1,2). TIM-3 is also expressed on other immune cell types: regulatory T cells (Treg), natural killer (NK) cells, macrophages, and dendritic cells (DCs), as well as leukemia stem cells (LSCs) (1-3). Human TIM-3 protein is 301 amino acids (aa) in length with a theoretical molecular weight (MW) of 33.4 kDa and shares ~63% aa sequence identity with mouse TIM-3 (2,4). The TIM-3 protein has an extracellular IgV domain, a mucin and stalk domain with O- and N-glycosylation sites, a transmembrane domain, and an intracellular tail with conserved tyrosine residues (2,3). Ligands for TIM-3 include soluble galectin-9, high-mobility group protein B1 (HMGB1), phosphatidylserine (PtdSer), and carcinoembyronic antigen-related cell adhesion molecule-1 (CEACAM-1) (1-3,5). Each of these ligands interact with different regions of the TIM-3 IgV domain. In the absence of ligand binding, the unphosphorylated intracellular tyrosine residues of TIM-3 are associated with HLA-B associated transcript 3 (Bat3), which recruits Lck and this Bat3-Lck complex preserves T cell signaling (1-3,5). When TIM-3 is engaged, an intracellular signaling cascade is initiated to inhibit immune cell activation. (1-3,5). Specifically, the tyrosine residues of TIM-3 are phosphorylated, Bat3 is released, and this results in suppression of immune responses (1-3, 5). Persistent, sustained TIM-3 signaling eventually results in T cell exhaustion (1-3,5).

Dysregulation of TIM-3 expression is associated with autoimmune diseases as shown by studies where inhibition of TIM-3 using blocking antibodies worsened disease progression in experimental autoimmune encephalomyelitis (EAE) models of multiple sclerosis (MS) (2,3,5). Conversely, high levels of TIM-3 have been shown during viral infection as well as in many cancer types where its increased expression may be an indicator of poor prognosis (2,3,5). TIM-3 has emerged as a potential cancer immunotherapy target as preclinical studies blocking TIM-3 results in increased anti-tumor immunity and prevents tumor growth (3,5). Studies have suggested combination therapy of TIM-3 blockade with blockade of other checkpoint inhibitors such as programmed death 1 (PD-1) or lymphocyte activation gene 3 (LAG-3) is more effective than TIM-3 blockade alone (3,5).

References

1. Acharya N, Sabatos-Peyton C, Anderson AC. Tim-3 finds its place in the cancer immunotherapy landscape. J Immunother Cancer. 2020; 8(1):e000911. https://doi.org/10.1136/jitc-2020-000911

2. Das M, Zhu C, Kuchroo VK. Tim-3 and its role in regulating anti-tumor immunity. Immunol Rev. 2017; 276(1):97-111. https://doi.org/10.1111/imr.12520

3. Joller N, Kuchroo VK. Tim-3, Lag-3, and TIGIT. Curr Top Microbiol Immunol. 2017; 410:127-156. https://doi.org/10.1007/82_2017_62

4. Uniprot (Q8TDQ0)

5. Wolf Y, Anderson AC, Kuchroo VK. TIM3 comes of age as an inhibitory receptor. Nat Rev Immunol. 2020; 20(3):173-185. https://doi.org/10.1038/s41577-019-0224-6

Long Name

T Cell Immunoglobulin Mucin-3

Alternate Names

CD366, HAVcr-2, HAVCR2, KIM-3, SPTCL, TIM3, TIMD3, anti human tim 3, anti human tim-3, anti-TIM 3, TIM 3 human, TIM-3 human

Entrez Gene IDs

84868 (Human)

Gene Symbol

HAVCR2

UniProt

Q8TDQ0

Additional TIM-3 Products

Product Documents for TIM-3 Antibody (F38-2E2) - BSA Free

Product Datasheets

Certificate of Analysis

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Product Specific Notices for TIM-3 Antibody (F38-2E2) - BSA Free

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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