S100A9 Antibody (MRP14/840) Summary
Description |
200ug/ml of antibody purified from Bioreactor Concentrate. Prepared in 1 mM PBS with 0.05% BSA & 0.05% azide. Also available WITHOUT BSA at 1.0 mg/ml. (NBP3-11441)
Antibody with azide - store at 2 to 8C. |
Immunogen |
Recombinant human S100A9 protein (Uniprot: P06702) |
Localization |
Cytoplasmic |
Marker |
Macrophage Marker |
Specificity |
Recognizes a protein of14kDa, identified as MRP-14 (also known as Calgranulin B or S100AA9). It comprises 60% of the cytoplasmic protein fraction of circulating polymorphonuclear granulocytes and is also found in monocytes, macrophages and ileal tissue eosinophils. Peripheral blood monocytes carry the antigen extra- and intracellularly, neutrophils only intracellularly. It is a potent chemotactic factor for neutrophils. Plasma concentrations are elevated in diseases associated with increased neutrophil activity, like inflammatory bowel disease. Granulocytes terminate their existence after transmigration through the intestinal wall. Therefore, it is also detectable in feces. Elevated levels have been observed in body fluids such as plasma, saliva, gingival crevicular fluid, stools, and synovial fluid during infection and inflammatory conditions. This monoclonal antibody reacts with neutrophils, monocytes, and macrophages, and has been shown as an important marker for identifying macrophages in tissue sections. |
Isotype |
IgM Kappa |
Clonality |
Monoclonal |
Host |
Mouse |
Gene |
S100A9 |
Purity |
Protein L or PEG purified |
Innovator's Reward |
Test in a species/application not listed above to receive a full credit towards a future purchase. |
Applications/Dilutions
Dilutions |
- Flow Cytometry 1-2 ug/million cells
- Immunocytochemistry/ Immunofluorescence 1-2 ug/ml
- Immunofluorescence 0.5 - 1.0 ug/ml
- Immunohistochemistry
- Immunohistochemistry-Paraffin 1-2 ug/ml
|
Application Notes |
Immunohistochemistry (Formalin-fixed): Not suitable for frozen tissues. 1-2ug/ml for 30 minutes at RT. Staining of formalin-fixed tissues requires heating tissue sections in 10mM Tris with 1mM EDTA, pH 9.0, for 45 min at 95C followed by cooling at RT for 20 minutes. Optimal dilution for a specific application should be determined. |
Theoretical MW |
14 kDa. Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors. |
Packaging, Storage & Formulations
Storage |
Store at 4C. |
Buffer |
1 mM PBS with 0.05% BSA |
Preservative |
0.05% Sodium Azide |
Concentration |
0.2 mg/ml |
Purity |
Protein L or PEG purified |
Alternate Names for S100A9 Antibody (MRP14/840)
Background
S100A9 is a member of the S100 family of proteins containing 2 EF-hand calcium-binding motifs. S100 proteins are localized in the cytoplasm and/or nucleus of a wide range of cells, and are involved in the regulation of a number of cellular processes such as cell cycle progression and differentiation. S100A9 may function in the inhibition of casein kinase, and altered expression is associated with the disease cystic fibrosis. Overexpression of S100A9 has also recently been linked to a poor prognosis with invasive ductal carcinoma of the breast.
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.
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Product General Protocols
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
Video Protocols
FAQs for S100A9 Antibody (NBP2-45292). (Showing 1 - 2 of 2 FAQ).
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Have any of your S100A9 antibodies been tested for use in neutralization, or blocking assays, on human samples?
- Unfortunately at this time we have not tested, or received customer feedback on our S100A9 antibodies for use in blocking or neutralizing assays. If you were planning on testing any of our S100A9 antibodies for neutralizing or blocking capabilities, we would recommend our Innovator’s Reward Program. Under the terms of this program we would be happy to provide a credit for a free vial in exchange for new data on this previously untested or reported application. Please submit this data in the form of an online review. Additional <a href="http://www.novusbio.com/support/innovators-reward.html" target="_self">Innovators Reward Program</a> information can be found using this link.
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We would like to stain paraffin embedded human intestinal tissue for Calprotectin. One question will be which cells express the majority of Calprotectin - invading neutrophils vs epithelium for example. The antibody list you provide is quite extensive. Which antibody would you recommend for our purpose? Which tissue would you recommend as positive control.
- Nine of our antibodies to Calprotectin have been validated for IHC-P with human tissue, and you can see all of these products. A number of our IHC images were generated using human spleen samples, and as such this may be a good choice of a positive control tissue. We do sell a human spleen slide product, which is suitable for IHC-P. Unfortunately I do not have an in-depth knowledge of Calprotectin, however the image shown for our antibody with catalogue number NBP1-02826 demonstrates clear staining of neutrophils. The following paper also suggests that the protein is abundant in neutrophils: PMID 11435495.
Secondary Antibodies
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