T Cell Immunoglobulin and Mucin Domain-3 Recombinant Protein | Havcr2 recombinant protein

Recombinant Mouse T Cell Immunoglobulin and Mucin Domain-3 Protein

Cat. Num. AAA2556751

• Gene Names: Havcr2; Tim3; TIM-3; Timd3
• Purity: >95% as determined by reducing SDS-PAGE.
• Synonyms: T Cell Immunoglobulin and Mucin Domain-3; Recombinant Mouse T Cell Immunoglobulin and Mucin Domain-3 Protein; Hepatitis A virus cellular receptor 2 homolog; HAVcr-2; T-cell immunoglobulin and mucin domain-containing protein 3; T-cell immunoglobulin mucin receptor 3; T-cell membrane protein 3; Tim3; Timd3; Havcr2 recombinant protein

• Host: Human Cells
• Purity/Purification: >95% as determined by reducing SDS-PAGE.
• Form/Format: Lyophilized from a 0.2 mum filtered solution of PBS, pH 7.4.
• Sequence Length: 281

• Species: Mouse
• Endotoxin: <1.0 EU per mug as determined by LAL test.
• Fragment: Met1-Arg191
• Fusion Tag: C-6His
• Preparation and Storage: Lyophilized protein should be stored at < -20 degree C, though stable at room temperature for 3 weeks.; Reconstituted protein solution can be stored at 4-7 degree C for 2-7 days.; Aliquots of reconstituted samples are stable at < -20 degree C for 3 months.

Related Product Information for Havcr2 recombinant protein

Protein Construction: Recombinant Mouse T cell Immunoglobulin and Mucin Domain-3 is produced by our Mammalian expression system and the target gene encoding Arg20-Ala193 is expressed with a 6His tag at the C-terminus.

Background: T cell immunoglobulin and mucin domain-3 (TIM3), also called hepatitis A virus cellular receptor 2 (HAVCR2), is a transmembrane glycoprotein of the TIM family of immune regulating molecules and plays an important role in the Th1-mediated immune response. TIM3 is expressed on the Th1 cells, CD8 T-cells, monocytes, and dendritic cells, but not on Th2 cells. TIM3 expressed by monocytes and dendritic cells facilitates phagocytosis of apoptotic cells and up-regulates cross-presentation of apoptotic cell-associated antigens through interaction with phosphatidylserine. Engagement of TIM3 by its ligand galectin-9 induces a range of immunosuppressive functions which enhance immune tolerance and inhibit anti-tumor immunity. Stimulation of TIM3 with an agonistic antibody promotes inflammation through the activation of innate immune cells. TIM3 is also regarded as a potential target molecule for immunotherapy. TIM3 and programmed cell death 1 (PD-1) as two important coinhibitory regulators of T cell responses, have been implicated with the T-cell dysfunction or exhaustion associated with chronic HBV infection including HBV-related HCC.

NCBI and Uniprot Product Information

• NCBI GI #: 18182531
• NCBI GeneID: 171285
• Molecular Weight: Molecular Mass: 19.9kDa; Actual Protein Molecular Mass: 38-55kDa
• NCBI Official Full Name: T cell immunoglobulin mucin-3
• NCBI Official Synonym Full Names: hepatitis A virus cellular receptor 2
• NCBI Official Symbol: Havcr2
• NCBI Official Synonym Symbols: Tim3; TIM-3; Timd3
• NCBI Protein Information: hepatitis A virus cellular receptor 2 homolog
• UniProt Protein Name: Hepatitis A virus cellular receptor 2 homolog
• Protein Family: Hepatitis A virus cellular receptor
• UniProt Gene Name: Havcr2
• UniProt Synonym Gene Names: Tim3; Timd3; HAVcr-2; TIMD-3; TIM-3

Uniprot Description

Cell surface receptor implicated in modulating innate and adaptive immune responses. Generally accepted to have an inhibiting function. Reports on stimulating functions suggest that the activity may be influenced by the cellular context and/or the respective ligand (PubMed:18006747). Regulates macrophage activation (PubMed:11823861). Inhibits T-helper type 1 lymphocyte (Th1)-mediated auto- and alloimmune responses and promotes immunological tolerance (PubMed:14556006, PubMed:18006747). In CD8+ cells attenuates TCR-induced signaling, specifically by blocking NF-kappaB and NFAT promoter activities resulting in the loss of IL-2 secretion. The function may implicate its association with LCK proposed to impair phosphorylation of TCR subunits (). In contrast, shown to activate TCR-induced signaling in T-cells probably implicating ZAP70, LCP2, LCK and FYN (PubMed:21807895). Expressed on Treg cells can inhibit Th17 cell responses (). Receptor for LGALS9. Binding to LGALS9 is believed to result in suppression of T-cell responses; the resulting apoptosis of antigen-specific cells may implicate HAVCR2 phosphorylation and disruption of its association with BAG6 (PubMed:22863785). Binding to LGALS9 is proposed to be involved in innate immune response to intracellular pathogens. Expressed on Th1 cells interacts with LGALS9 expressed on Mycobacterium tuberculosis-infected macrophages to stimulate antibactericidal activity including IL-1 beta secretion and to restrict intracellular bacterial growth (PubMed:20937702). However, the function as receptor for LGALS9 has been challenged (). Also reported to enhance CD8+ T-cell responses to an acute infection such as by Listeria monocytogenes (PubMed:24567532). Receptor for phosphatidylserine (PtSer); PtSer-binding is calcium-dependent (PubMed:20083673). May recognize PtSer on apoptotic cells leading to their phagocytosis. Mediates the engulfment of apoptotic cells by dendritic cells (PubMed:19224762). Expressed on T-cells, promotes conjugation but not engulfment of apoptotic cells (PubMed:20083673). Expressed on dendritic cells (DCs) positively regulates innate immune response and in synergy with Toll-like receptors promotes secretion of TNF-alpha (PubMed:18006747). In tumor-imfiltrating DCs suppresses nucleic acid-mediated innate immune repsonse by interaction with HMGB1 and interfering with nucleic acid-sensing and trafficking of nucleid acids to endosomes (PubMed:22842346). Can enhance mast cell production of Th2 cytokines Il-4, IL-6 and IL-13 (PubMed:17620455). Expressed on natural killer (NK) cells acts as a coreceptor to enhance IFN-gamma production in response to LGALS9. In contrast, shown to suppress NK cell-mediated cytotoxicity (). Negatively regulates NK cell function in LPS-induced endotoxic shock (PubMed:25337993).