Description: This 9M1-3 monoclonal antibody reacts with human Galectin-9. Galectin-9 is one of fifteen members of the galectin family of glycan-binding proteins. It is expressed on activated T helper cells and Foxp3+ T regulatory cells and plays a critical role in the regulation of immune function. Interaction of Galectin-9 with its ligand, TIM3, induces apoptosis in Th1 and Th17, inhibits Th17 polarization and IFN gamma expression, and drives Treg expansion. Galectin-9 is also thought to contribute to the survival and expansion of some tumors by inhibiting the anti-tumor response and promoting immune evasion. Along with Galectin-1 and Galectin-3, high levels of Galectin-9 expression are associated with poor cancer prognosis, making these potential therapeutic targets.
Applications Reported: This 9M1-3 antibody has been reported for use in flow cytometric analysis and functional assays. (Fluorochrome-conjugated 9M1-3 is recommended for use in intracellular flow cytometry).
Applications Tested: This 9M1-3 antibody has been tested by flow cytometric analysis of normal human peripheral blood cells. This can be used at less than or equal to 1 µg per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest.
Storage and handling: Use in a sterile environment.
Filtration: 0.2 µm post-manufacturing filtered.
Purity: Greater than 90%, as determined by SDS-PAGE.
Endotoxin Level: Less than 0.001 ng/µg antibody, as determined by LAL assay.
Aggregation: Less than 10%, as determined by HPLC.
The galectins are a family of beta-galactoside-binding proteins implicated in modulating cell-cell and cell-matrix interactions. The protein encoded by this gene is an S-type lectin. It is overexpressed in Hodgkin's disease tissue and might participate in the interaction between the H and RS cells with their surrounding cells and might thus play a role in the pathogenesis of this disease and/or its associated immunodeficiency. Multiple alternatively spliced transcript variants have been found for this gene.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: Ecalectin; Gal-9; Gal9; Galectin-9; Galectin9; HOM HD 21; lectin, galactoside binding soluble 9; lectin, galactoside-binding, soluble, 9; Tumor antigen HOM-HD-21; urate transporter/channel protein
Gene Aliases: HUAT; LGALS9; LGALS9A
UniProt ID: (Human) O00182
Entrez Gene ID: (Human) 3965
Molecular Function: extracellular matrix protein