Galectin-9 Antibody (766428) [Unconjugated]

Galectin-9 was detected in perfusion fixed frozen sections of mouse colon using Rat Anti-Mouse Galectin-9 Monoclonal Antibody (Catalog # MAB3535) at 25 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Rat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS017) and counterstained with hematoxylin (blue). Specific staining was localized to plasma membranes and cytoplasm of epithelial cells. View our protocol for Chromogenic IHC Staining of Frozen Tissue Sections.

Mouse thymocytes were stained with Rat Anti-Mouse Galectin‑9 Monoclonal Antibody (Catalog # MAB3535, filled histogram) or isotype control antibody (Catalog # MAB0061, open histogram), followed by Allophycocyanin-conjugated Anti-Rat IgG Secondary Antibody (Catalog # F0113). To facilitate intracellular staining, cells were fixed with paraformaldehyde and permeabilized with saponin.

• Reactivity: Mu
• Applications: IHC, CyTOF-ready, Flow
• Clone: 766428
• Clonality: Monoclonal
• Host: Rat
• Conjugate: Unconjugated
• Concentration: LYOPH

Galectin-9 Antibody (766428) [Unconjugated] Summary

• Immunogen: E. coli-derived recombinant mouse Galectin-9 (short isoform)
  Ala2-Thr322
  Accession # O08573-2
• Specificity: Detects mouse Galectin-9 in direct ELISAs. In direct ELISAs, no cross-reactivity with recombinant human Galectin-9 or recombinant mouse Galectin-4 is observed.
• Source: N/A
• Isotype: IgG2b
• Clonality: Monoclonal
• Host: Rat
• Gene: LGALS9
• Purity Statement: Protein A or G purified from hybridoma culture supernatant

Applications/Dilutions

• Dilutions:
  • CyTOF-ready
  • Immunohistochemistry 8-25 ug/mL
  • Intracellular Staining by Flow Cytometry 2.5 ug/10^6 cells

Packaging, Storage & Formulations

• Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
• Buffer: Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
• Preservative: No Preservative
• Concentration: LYOPH
• Reconstitution Instructions: Sterile PBS to a final concentration of 0.5 mg/mL.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Galectin-9 Antibody (766428) [Unconjugated]

• Ecalectin
• GAL9
• Gal-9
• galectin 9
• Galectin9
• Galectin-9
• HUAT
• lectin, galactoside-binding, soluble, 9
• LGALS9
• LGALS9A
• MGC117375
• MGC125973
• MGC125974
• Tumor antigen HOM-HD-21
• urate transporter/channel protein

Background

Mouse Galectin-9 ( beta -galactoside-binding lectin 9) is a 36-39 kDa, secreted, S-type lectin. It is 353 amino acids in length and contains no identifiable signal sequence. There are two distinct carbohydrate-binding regions (aa 81-87 and 285-291) that are joined by a linker region (aa 148-205). At least one alternate splice form exists that shows a 31 aa insertion between aa 147-148. The short form is expressed on fibroblasts, hepatocytes, endothelial cells and astrocytes. The long form is expressed on intestinal epithelium. Galectin-9 binds TIM-3 on Th1 cells, inducing apoptosis. Mouse Galectin-9 is 69% and 85% aa identical to human and rat Galectin-9, respectively.

Limitations

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.

Bioinformatics

• Gene Symbol: LGALS9
• Uniprot:
  • O08573-2()