Abcam, ab213786, Human Galectin-9 / Gal-9 ELISA Kit

Size: 1 x 96Tests
Human Galectin-9 / Gal-9 ELISA Kit is a Sandwich (quantitative) ELISA for the measurement of Human Galectin-9 / Gal-9 in Human in Cell/Tissue Extracts, Cell Culture Media, Biofluids samples.
Key facts
Detection method:Colorimetric,
Sample types:Cell Lysate, Cell culture supernatant, EDTA Plasma, Heparin Plasma, Serum,
Reacts with:Human,
Assay type:Sandwich (quantitative),
Sensitivity:< 10 pg/mL,
Range:93.8 - 6000 pg/mL,
Assay time:3h 30m,
Assay Platform:Pre-coated microplate (12 x 8 well strips)

Product details:
The Human Galectin-9 / Gal-9 Enzyme-Linked Immunosorbent Assay (ELISA) kit (ab213786) is designed for the quantitative detection of Human Galectin-9 in cell culture supernatants, cell lysates, serum and plasma (heparin, EDTA).
The ELISA kit is based on standard sandwich enzyme-linked immunosorbent assay technology. A polyclonal antibody from goat specific for Galectin-9 has been precoated onto 96-well plates. Standards (Expression system for standard: E.coli; Immunogen sequence: M1-T355) and test samples are added to the wells, a biotinylated detection polyclonal antibody from goat specific for Galectin-9 is added subsequently and then followed by washing with PBS or TBS buffer. Avidin-Biotin-Peroxidase Complex was added and unbound conjugates were washed away with PBS or TBS buffer. HRP substrate TMB was used to visualize HRP enzymatic reaction. TMB was catalyzed by HRP to produce a blue color product that changed into yellow after adding acidic stop solution. The density of yellow is proportional to the Human Galectin-9 amount of sample captured in plate.
Galectin-9, also called HUAT or LGALS9A is a protein that in humans is encoded by the LGALS9 gene. This gene is mapped to 17q11.2. 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. The protein has N- and C- terminal carbohydrate-binding domains connected by a link peptide.

Properties and Storage Information:
Shipped at conditions-Blue Ice, Appropriate short-term storage conditions--20°C, Appropriate long-term storage conditions--20°C, Storage information--20°C

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
Galectin-9 also known as Gal-9 or LGALS9 is a β-galactoside-binding lectin with a molecular mass of around 40 kDa. It shows expression in various tissues including the thymus spleen and liver. The galectin-9 protein is involved in cell-cell and cell-matrix interactions where it binds to glycoproteins and glycolipids. Researchers commonly use methods like Galectin-9 ELISA to measure its levels in different biological samples.
Biological function summary
Galectins like galectin-9 play essential roles in regulating diverse immune responses. Galectin-9 acts within the immune system by modulating inflammation and apoptosis. It acts as both a pro-apoptotic factor for T cells and a protein mediator in innate immune functions. Galectin-9 proteins can form complexes with other lectins and cell surface receptors contributing to cellular signaling processes.
Pathways
Galectin-9 is integral to the immune system's functional networks. It participates in the T-cell regulation pathways and the innate immunity pathways. In these pathways it interacts with other proteins like TIM-3 which mediates T-cell apoptosis and contributes to immune tolerance. These interaction networks play important roles in maintaining the body's immune homeostasis.
Galectin-9 has associations with autoimmune diseases and cancer. Its regulatory effects on T cells connect it to autoimmune conditions where abnormal T-cell activation occurs. In cancer the alteration in galectin-9 expression levels affects tumor immunity. The interaction of galectin-9 with other proteins like TIM-3 is important in cancer progression making it a target of interest for therapeutic interventions.