Key Product Details

Species Reactivity

Human

Applications

Immunohistochemistry, Immunohistochemistry-Paraffin, Western Blot

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgG1 Clone # OTI2E2

Format

Azide and BSA Free

Concentration

LYOPH mg/ml

View all TIM-3 Antibodies »

Product Specifications

Immunogen

Human recombinant protein fragment corresponding to amino acids 22-202 of human HAVCR2(NP_116171) produced in E.coli.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG1

Theoretical MW

33.2 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Scientific Data Images for TIM-3 Antibody (OTI2E2) - Azide and BSA Free

Western Blot: TIM-3 Antibody (OTI2E2)Azide and BSA Free [NBP2-74520]

Western Blot: TIM-3 Antibody (OTI2E2)Azide and BSA Free [NBP2-74520]

Western Blot: TIM-3 Antibody (OTI2E2) - Azide and BSA Free [NBP2-74520] - HEK293T cells were transfected with the pCMV6- ENTRY control (Left lane) or pCMV6-ENTRY HAVCR2 (Right lane) cDNA for 48 hrs and lysed. Equivalent amounts of cell lysates (5 ug per lane) were separated by SDS-PAGE and immunoblotted with anti HAVCR2.(1:2000
Immunohistochemistry: TIM-3 Antibody (OTI2E2) - Azide and BSA Free [NBP2-74520]

Immunohistochemistry: TIM-3 Antibody (OTI2E2) - Azide and BSA Free [NBP2-74520]

Immunohistochemistry: TIM-3 Antibody (OTI2E2) - Azide and BSA Free [NBP2-74520] - Analysis of Human lymphoma tissue. (Heat-induced epitope retrieval by 1 mM EDTA in 10mM Tris, pH8.5, 120C for 3min)
Immunohistochemistry: TIM-3 Antibody (OTI2E2) - Azide and BSA Free [NBP2-74520]

Immunohistochemistry: TIM-3 Antibody (OTI2E2) - Azide and BSA Free [NBP2-74520]

Immunohistochemistry: TIM-3 Antibody (OTI2E2) - Azide and BSA Free [NBP2-74520] - Analysis of Adenocarcinoma of Human breast tissue. (Heat-induced epitope retrieval by 1 mM EDTA in 10mM Tris, pH8.5, 120 degrees C for 3min)
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Applications for TIM-3 Antibody (OTI2E2) - Azide and BSA Free

Application
Recommended Usage

Immunohistochemistry

1:150

Immunohistochemistry-Paraffin

1:150

Formulation, Preparation, and Storage

Purification

Immunogen affinity purified

Reconstitution

we recommend adding 100uL distilled water to a final antibody concentration of about 1 mg/mL. To use this carrier-free antibody for conjugation experiment, we strongly recommend performing another round of desalting process.

Formulation

Lyophilized from PBS (pH 7.3) with 8% Trehalose

Format

Azide and BSA Free

Preservative

No Preservative

Concentration

LYOPH mg/ml

Shipping

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

Stability & Storage

Store at -20C. 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

Gene Symbol

HAVCR2

Additional TIM-3 Products

Product Documents for TIM-3 Antibody (OTI2E2) - Azide and BSA Free

Product Datasheets

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

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Product Specific Notices for TIM-3 Antibody (OTI2E2) - Azide and 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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