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Key Specifications Table
| Species Reactivity | Key Applications | Host | Format | Antibody Type |
|---|---|---|---|---|
| H | ELISA, WB, IH(P) | M | Purified | Monoclonal Antibody |
| Description | |
|---|---|
| Catalogue Number | CBL419 |
| Brand Family | Chemicon® |
| Trade Name |
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| Description | Anti-Eosinophil Major Basic Protein Antibody, clone BMK13 |
| Alternate Names |
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| Product Information | |
|---|---|
| Format | Purified |
| Presentation | The monoclonal is presented at a concentration of 100μg/ml in phosphate buffered saline containing 10mM sodium azide and 1mg/ml bovine serum albumin. We recommend that each laboratory determine an optimum working titre for use in its particular application. |
| Quality Level | MQ100 |
| Applications | |
|---|---|
| Application | Anti-Eosinophil Major Basic Protein Antibody, clone BMK13 is an antibody against Eosinophil Major Basic Protein for use in ELISA, WB, IH(P). |
| Key Applications |
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| Application Notes | Immunohistochemistry: Clone BMK-13 reacts with fresh frozen tissues that were sectioned (6μm), dried for 1 hour at room temperature and fixed in 1:1 solution of methanol and acetone, and airdried for 1 hour. Sections can be stored wrapped in aluminium foil at -70°C until used. For paraffin embedded sections, 4% PFA (3hr) should be used for skin biopsies. 5 μM sections are dewaxed, and rehydrated with water. A proteinase treatment of 0.1% trypsin for 15 minutes in water should be performed prior to blocking and antibody staining.The antibody reacts better in frozen tissues than in paraffin embedded tissues. Western blotting: purified normal human eosinophils were treated with digitonin (5mg/mL) for 10 minutes before boiling in sample buffer and run on a 15% SDS-PAGE. Purified MBP migrates at ~ 14kDa, and typical human samples range from 10-16kDa. ELISA development for MBP estimation. Optimal working dilutions must be determined by the end user. |
| Biological Information | |
|---|---|
| Clone | BMK13 |
| Concentration | Please refer to the Certificate of Analysis for the lot-specific concentration. |
| Host | Mouse |
| Specificity | CBL419 is specific for eosinophil major basic protein irrespective of the stages of eosinophil activation and can be regarded as a "pan-eosinophil" marker. This antibody will recognize the 23.8 kDa secreated pro-form of MBP (Pregnancy Associated MBP) found in the placenta and serum of pregnant women as well as the 13.8 kDa mature form of the protein which is found in the matrix of the eosinophil large specific granual. It does not cross-react with horse, mouse or rat MBP. |
| Isotype | IgG1 |
| Species Reactivity |
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| Antibody Type | Monoclonal Antibody |
| Entrez Gene Number |
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| Entrez Gene Summary | The protein encoded by this gene is the predominant constituent of the crystalline core of the eosinophil granule. High levels of the proform of this protein are also present in placenta and pregnancy serum, where it exists as a complex with several other proteins including pregnancy-associated plasma protein A (PAPPA), angiotensinogen (AGT), and C3dg. This protein may be involved in antiparasitic defense mechanisms as a cytotoxin and helminthotoxin, and in immune hypersensitivity reactions. It is directly implicated in epithelial cell damage, exfoliation, and bronchospasm in allergic diseases. |
| Gene Symbol |
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| Non-Reactive Species |
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| UniProt Number |
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| UniProt Summary | FUNCTION: SwissProt: P13727 # Cytotoxin and helminthotoxin. Also induces non-cytolytic histamine release from human basophils. Involved in antiparasitic defense mechanisms and immune hypersensitivity reactions. The proform acts as a proteinase inhibitor, reducing the activity of PAPPA. SIZE: 222 amino acids; 25232 Da SUBUNIT: In pregnancy serum, the proform exists as a disulfide- linked 2:2 heterotetramer with PAPPA, as a disulfide-linked 2:2 heterotetramer with AGT, and as a complex (probably a 2:2:2 heterohexamer) with AGT and C3dg. SUBCELLULAR LOCATION: Note=The proform is secreted. The mature protein is found in the matrix of the eosinophils large specific granule (crystalloid core). TISSUE SPECIFICITY: High levels of the proform in placenta and pregnancy serum; in placenta, localized to X cells of septa and anchoring villi. Lower levels in a variety of other tissues including kidney, myometrium, endometrium, ovaries, breast, prostate, bone marrow and colon.DEVELOPMENTAL STAGE: Levels of the proform increase in serum and placenta during pregnancy. SIMILARITY: SwissProt: P13727 ## Contains 1 C-type lectin domain. MISCELLANEOUS: Binds heparin. Does not bind calcium. |
| Product Usage Statements | |
|---|---|
| Usage Statement |
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| Storage and Shipping Information | |
|---|---|
| Storage Conditions | For use within 1 month of purchase store at +4°C, for long term storage aliquot antibody into small volumes and store at -20°C. |
| Packaging Information | |
|---|---|
| Material Size | 100 µg |