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MUC5AC Antibody (CLH2) - Azide and BSA Free

Novus Biologicals, part of Bio-Techne | Catalog # NBP3-11458

Novus Biologicals, part of Bio-Techne
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NBP3-11458

Key Product Details

Species Reactivity

Validated:

Human

Applications

Flow Cytometry, Immunocytochemistry/ Immunofluorescence, Immunofluorescence, Immunohistochemistry, Immunohistochemistry-Paraffin, Western Blot

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgG1 kappa Clone # CLH2

Format

Azide and BSA Free

Concentration

1 mg/ml

Product Summary for MUC5AC Antibody (CLH2) - Azide and BSA Free

Immunogen

A synthetic peptide of human MUC5AC tandem repeat (Uniprot: P98088)

Localization

Cytoplasmic

Specificity

Mucin 5AC glycoprotein (MUC5AC) is a HMW glycoprotein belonging to the superfamily of mucins. Mucins are produced by epithelial cells and can be divided into two families; secretory mucins and membrane bound mucins. MUC5AC is a mucus-forming, secreted mucin that is found in normal gastric and tracheo-bronchial mucosa, but absent from normal colon. MUC5AC expression is present in primary ovarian mucinous cancer but usually absent in colorectal adenocarcinoma, thus showing an expression pattern opposite to MUC2. Together with a panel of antibodies, Anti-MUC5AC may be useful for differential identification of primary mucinous ovarian tumors from colon adenocarcinoma metastatic to the ovary. MUC5AC antibodies may also be useful for identification of intestinal metaplasia as well as in the identification of pancreatic carcinoma and pre-cancerous changes vs. normal pancreas. The antibody recognizes the sequence TTSTTSAP within the tandem repeat of MUC5AC. It further recognizes glycosylated as well as unglycosylated MUC5AC.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG1 kappa

Description

1.0 mg/ml of antibody purified from Bioreactor Concentrate by Protein A/G. Prepared in 10mM PBS WITHOUT BSA & azide. Also available at 200 ug/ml WITH BSA & azide (NBP2-44455).

Antibody with azide - store at 2 to 8C. Antibody without azide - store at -20 to -80C.

Applications for MUC5AC Antibody (CLH2) - Azide and BSA Free

Application
Recommended Usage

Flow Cytometry

0.5 - 1 ug/million cells in 0.1 mL

Immunocytochemistry/ Immunofluorescence

1 - 2 ug/mL

Immunofluorescence

1 - 2 ug/ml

Immunohistochemistry-Paraffin

1 - 2 ug/ml
Application Notes
Immunohistochemistry (Formalin-fixed): 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.
Use in WB reported in scientific literature PMID: 32709695
Please Note: Optimal dilutions of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Protein A or G purified

Formulation

10 mM PBS

Format

Azide and BSA Free

Preservative

No Preservative

Concentration

1 mg/ml

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at -20 to -80C. Avoid freeze-thaw cycles.

Background: MUC5AC

Mucin 5, subtype AC (MUC5AC) is a gel-forming secreted mucin that functions as a protective barrier on surface of epithelial tissues (1-2). MUC5AC is expressed primarily by goblet cells of the surface epithelium, including in the stomach, respiratory tract, gall bladder, endocervix, and endometrium (1-3). Human MUC5AC is located on chromosome 11p15.5, consisting of 5654 amino acids and has a N-terminus, tandem-repeat region (TRR), and a C-terminus, with a theoretical molecular weight of ~585 kDa (1-4). More specifically, the N-terminus contains four von Willebrand factor type D domains, where D1 also has a leucine zipper pattern (1). The TRR is further divided into nine CysD domains and four PTS-rich tandem repeats (1). Finally, the C-terminus has a D4-, B-, C-, and CK-domain (1). The TRR is a site of heavy O-glycosylation that functions in gel and polypeptide formation (1,3).

Given that MUC5AC is the primary mucin produced and secreted by cells lining airway, it is understandable that its expression is dysregulated in a number of respiratory diseases (1,3,5,6). For instance, MUC5AC is overexpressed in asthma and the protein is also more highly glycosylated, specifically fucosylated, in the disease state (1,3,7). Additionally, its overproduction is a key feature in chronic obstructive pulmonary disease (COPD) contributing to mucosal blockage (6). Multiple pathways are associated with overproduction of MUC5AC including NFkappaB, the primary pathway for production and secretion, and also the MAPK and STAT6 pathways (3). In addition to conventional, synthetic therapeutics agents, researchers are exploring natural MUC5AC inhibitors such as flavonoids, glycosides, and steroids to treat associated disorders (3).

References

1. Krishn, S. R., Ganguly, K., Kaur, S., & Batra, S. K. (2018). Ramifications of secreted mucin MUC5AC in malignant journey: a holistic view. Carcinogenesis. https://doi.org/10.1093/carcin/bgy019

2. Ballester, B., Milara, J., & Cortijo, J. (2019). Mucins as a New Frontier in Pulmonary Fibrosis. Journal of clinical medicine. https://doi.org/10.3390/jcm8091447

3. Samsuzzaman, M., Uddin, M. S., Shah, M. A., & Mathew, B. (2019). Natural inhibitors on airway mucin: Molecular insight into the therapeutic potential targeting MUC5AC expression and production. Life sciences. https://doi.org/10.1016/j.lfs.2019.05.041

4. Uniprot (P98088)

5. Li, J., & Ye, Z. (2020). The Potential Role and Regulatory Mechanisms of MUC5AC in Chronic Obstructive Pulmonary Disease. Molecules (Basel, Switzerland). https://doi.org/10.3390/molecules25194437

6. Bonser, L. R., & Erle, D. J. (2017). Airway Mucus and Asthma: The Role of MUC5AC and MUC5B. Journal of clinical medicine. https://doi.org/10.3390/jcm6120112

Alternate Names

gastric mucin, leB, lewis B blood group antigen, major airway glycoprotein, MUC5, mucin 5, subtypes A and C, tracheobronchial/gastric, mucin 5AC, oligomeric mucus/gel-forming, mucin 5AC, oligomeric mucus/gel-forming pseudogene, mucin-5 subtype AC, tracheobronchial, mucin-5AC, TBM, tracheobronchial mucin

Gene Symbol

MUC5AC

Additional MUC5AC Products

Product Documents for MUC5AC Antibody (CLH2) - Azide and BSA Free

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Product Specific Notices for MUC5AC Antibody (CLH2) - Azide and BSA Free

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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