Human S100A9 Antibody

Catalog # Availability Size / Price Qty
Detection of Human S100A9 by Western Blot.
2 Images
Product Details
Citations (1)
Supplemental Products

Human S100A9 Antibody Summary

Species Reactivity
Detects human S100A9 in direct ELISAs and Western blots. In Western blots, no cross-reactivity with recombinant human (rh) S100A1, 2, 7, 8, 11, 13, rhS100B, rhS100P, recombinant mouse S100A4, 6, 10, or 16 is observed.
Monoclonal Mouse IgG2B Clone # 474315
Protein A or G purified from hybridoma culture supernatant
E. coli-derived recombinant human S100A9
Accession # P06702
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.

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Recommended Concentration
Western Blot
0.5 µg/mL
See below
8-25 µg/mL
See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Western Blot Detection of Human S100A9 antibody by Western Blot. View Larger

Detection of Human S100A9 by Western Blot. Western blot shows lysates of human peripheral blood mononuclear cells (PBMC), human spleen tissue, human tonsil tissue, and human cartilage tissue. PVDF membrane was probed with 0.5 µg/mL of Mouse Anti-Human S100A9 Monoclonal Antibody (Catalog # MAB5578) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF018). A specific band was detected for S100A9 at approximately 14 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Immunocytochemistry S100A9 antibody in Capan-1 Human Cell Line by Immunocytochemistry (ICC). View Larger

S100A9 in Capan-1 Human Cell Line. S100A9 was detected in immersion fixed Capan-1 human pancreatic adenocarcinoma cell line using 10 µg/mL Mouse Anti-Human S100A9 Monoclonal Antibody (Catalog # MAB5578) for 3 hours at room temperature. Cells were stained with the NorthernLights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (red; Catalog # NL007) and counterstained with DAPI (blue). View our protocol for Fluorescent ICC Staining of Cells on Coverslips.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Preparation and Storage

Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Size / Price
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & 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.

Background: S100A9

Human S100A9 (also MRP-14, Calgranulin-B, and p14) is a 14 kDa member of the S100 family of EF-hand calcium-binding proteins. It is 114 amino acids (aa) in length and contains short sequential modules. There is an N-terminal helical region, followed by a calcium-binding EF-hand domain, two more helical regions, a second EF-hand domain, and three additional helical regions. S100A9 will noncovalently heterodimerize with S100A8. In the presence of calcium, this heterodimer will form a heterotetramer. S100A9 is expressed in granulocytes, monocytes, and macrophages during acute and chronic inflammation. Human S100A9 shares 62% and 57% aa identity with rat and mouse S100A9, respectively.

Long Name
S100 Calcium Binding Protein A9
Entrez Gene IDs
6280 (Human); 20202 (Mouse)
Alternate Names
CAGBMigration inhibitory factor-related protein 14; Calgranulin B; calgranulin-B; Calprotectin L1H subunit; CFAGMRP-14,60B8AG; CGLB; L1AG; LIAG; MAC387; MIF; MRP-14; MRP14Leukocyte L1 complex heavy chain; NIF; P14; protein S100-A9; S100 calcium binding protein A9 (calgranulin B); S100 calcium binding protein A9; S100 calcium-binding protein A9 (calgranulin B); S100 calcium-binding protein A9; S100A9

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Citation for Human S100A9 Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citation: Showing 1 - 1

  1. Lipid and protein tumor markers for head and neck squamous cell carcinoma identified by imaging mass spectrometry
    Authors: J Schmidt, B Kajtár, K Juhász, M Péter, T Járai, A Burián, L Kereskai, I Gerlinger, T Tornóczki, G Balogh, L Vígh, L Márk, Z Balogi
    Oncotarget, 2020;11(28):2702-2717.
    Species: Human
    Sample Types: Whole Tissue
    Applications: IHC


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