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Your Position: Home > Immune Checkpoint Proteins > Galectin-9 > Human Galectin-9 / LGALS9 Protein

Human Galectin-9 / LGALS9 Protein

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  • Synonym
    Galectin-9,LGALS9,Ecalectin
  • Source
    Human Galectin-9 (LG9-H5143) is expressed from E.coli cells. It contains AA Met 1 - Thr 323 (Accession # O00182-2).
    Predicted N-terminus: Met
  • Molecular Characterization
    Galectin-9(Met 1 - Thr 323) O00182-2

    This protein carries a polyhistidine tag at the N-terminus.

    The protein has a calculated MW of 37.4 kDa.

  • Endotoxin
    Less than 1.0 EU per μg by the LAL method.
  • Formulation

    Lyophilized from 0.22 μm filtered solution in 20 mM MOPS, 150 mM NaCl, 1 mM EDTA, 2 mM DTT, pH7.5. Normally trehalose is added as protectant before lyophilization.

    Contact us for customized product form or formulation.

  • Reconstitution

    Please see Certificate of Analysis for specific instructions.

    For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

  • Storage

    For long term storage, the product should be stored at lyophilized state at -20°C or lower.

    Please avoid repeated freeze-thaw cycles.

    No activity loss was observed after storage at:

    1. 4-8°C for 12 months in lyophilized state;
    2. -70°C for 3 months under sterile conditions after reconstitution.
  • Background
    Galectin-9 (LGALS9) is also known as tumor antigen HOM-HD-21 and ecalectin. Galectins are a family of proteins defined by their binding specificity for β-galactoside sugars, such as N-acetyllactosamine (Galβ1-3GlcNAc or Galβ1-4GlcNAc), which can be bound to proteins by either N-linked or O-linked glycosylation. As for Galectin-9, it has high affinity for the Forssman pentasaccharide, and it is also the ligand for HAVCR2/TIM3. Forthermore, Galectin-9 stimulates bactericidal activity in infected macrophages by causing macrophage activation and IL1B secretion which restricts intracellular bacterial growth.
  • References
  • Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.

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