• Product nameAnti-S100A9 antibody [CF-557]
    See all S100A9 primary antibodies
  • Description
    Mouse monoclonal [CF-557] to S100A9
  • Tested applicationsSuitable for: Flow Cytmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Purified granulocyte antigen of Human origin.

  • Positive control
    • Human peripheral blood leukocytes



Our Abpromise guarantee covers the use of ab112228 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
Flow Cyt Use 2µg for 106 cells. ab170190-Mouse monoclonal IgG1, is suitable for use as an isotype control with this antibody.


  • FunctionCalcium-binding protein. Has antimicrobial activity towards bacteria and fungi. Important for resistance to invasion by pathogenic bacteria. Up-regulates transcription of genes that are under the control of NF-kappa-B. Plays a role in the development of endotoxic shock in response to bacterial lipopolysaccharide (LPS) (By similarity). Promotes tubulin polymerization when unphosphorylated. Promotes phagocyte migration and infiltration of granulocytes at sites of wounding. Plays a role as a pro-inflammatory mediator in acute and chronic inflammation and up-regulates the release of IL8 and cell-surface expression of ICAM1. Extracellular calprotectin binds to target cells and promotes apoptosis. Antimicrobial and proapoptotic activity is inhibited by zinc ions.
  • Tissue specificityExpressed by macrophages in acutely inflammed tissues and in chronic inflammation. Detected in peripheral blood leukocytes, in neutrophils and granulocytes. Detected at sites of vascular inflammation (at protein level). Also expressed in epithelial cells constitutively or induced during dermatoses.
  • Sequence similaritiesBelongs to the S-100 family.
    Contains 2 EF-hand domains.
  • Post-translational
    Phosphorylated. Phosphorylation inhibits activation of tubulin polymerization.
  • Cellular localizationSecreted. Cytoplasm. Cytoplasm > cytoskeleton. Cell membrane. Associates with tubulin filaments in activated monocytes. Targeted to the cell surface upon calcium influx. Released from blood leukocytes upon exposure to CSF2/GM-CSF, bacterial lipopolysaccharide (LPS) and during inflammatory processes. Serum levels are high in patients suffering from chronic inflammation.
  • Information by UniProt
  • Database links
  • Alternative names
    • Leukocyte L1 complex heavy chain antibody
    • 60B8AG antibody
    • CAGB antibody
    • Calgranulin B antibody
    • Calgranulin-B antibody
    • Calprotectin L1H subunit antibody
    • CFAG antibody
    • CGLB antibody
    • Cystic fibrosis antigen B antibody
    • L1AG antibody
    • Leukocyte L1 complex heavy chain antibody
    • LIAG antibody
    • MAC387 antibody
    • MIF antibody
    • Migration inhibitory factor related protein 14 antibody
    • Migration inhibitory factor-related protein 14 antibody
    • MRP 14 antibody
    • MRP-14 antibody
    • MRP14 antibody
    • Myeloid-related protein 14 antibody
    • NIF antibody
    • OTTHUMP00000015331 antibody
    • p14 antibody
    • Protein S100-A9 antibody
    • S100 A9 antibody
    • S100 calcium binding protein A9 antibody
    • S100 calcium binding protein A9 calgranulin B antibody
    • S100 calcium-binding protein A9 antibody
    • S100A9 antibody
    • S10A9_HUMAN antibody
    see all

Anti-S100A9 antibody [CF-557] images

  • Tissue Distribution by Flow Cytometry Analysis
    Cell cncentration: 1 x 106 cells per test
    ab112228 concentration used: 2.0 µg/106 cells
    Isotypic control (shaded): Purified Mouse IgG1
    Cell source: Human peripheral blood leukocytes
    PE Secondary antibody
    Percentage of cells stained above control: 74.7%

References for Anti-S100A9 antibody [CF-557] (ab112228)

This product has been referenced in:
  • Thacher SM  et al. Cell type and gene-specific activity of the retinoid inverse agonist AGN 193109: divergent effects from agonist at retinoic acid receptor gamma in human keratinocytes. Cell Growth Differ 10:255-62 (1999). Read more (PubMed: 10319995) »
  • Klein ES  et al. Identification and functional separation of retinoic acid receptor neutral antagonists and inverse agonists. J Biol Chem 271:22692-6 (1996). Read more (PubMed: 8798442) »

See all 3 Publications for this product

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