MUC1 Antibody (CL8733) - Azide and BSA Free

Novus Biologicals, part of Bio-Techne | Catalog # NBP3-43891

Novus Biologicals, part of Bio-Techne

Key Product Details

Validated by

Orthogonal Validation

Species Reactivity

Human

Applications

Immunohistochemistry-Paraffin

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgG1 Clone # CL8733

Format

Azide and BSA Free

Concentration

LYOPH mg/ml

View all MUC-1 Antibodies »

Product Specifications

Immunogen

This antibody was generated using a recombinant protein sequence of P15941, with the exact immunogen sequence remaining proprietary.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG1

Scientific Data Images for MUC1 Antibody (CL8733) - Azide and BSA Free

MUC1 Antibody (CL8733) - Azide and BSA Free Immunohistochemistry-Paraffin: MUC1 Antibody [NBP3-43891]

Immunohistochemistry-Paraffin: MUC1 Antibody [NBP3-43891]

Staining of human breast cancer shows strong cytoplasmic positivity.
MUC1 Antibody (CL8733) - Azide and BSA Free Immunohistochemistry-Paraffin: MUC1 Antibody [NBP3-43891]

Immunohistochemistry-Paraffin: MUC1 Antibody [NBP3-43891]

Analysis in human stomach and liver tissues using NBP3-43891 antibody. Corresponding MUC1 RNA-seq data are presented for the same tissues.
MUC1 Antibody (CL8733) - Azide and BSA Free Immunohistochemistry-Paraffin: MUC1 Antibody [NBP3-43891]

Immunohistochemistry-Paraffin: MUC1 Antibody [NBP3-43891]

Staining of human Fallopian tube shows strong positivity in apical membrane in glandular cells.
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Applications for MUC1 Antibody (CL8733) - Azide and BSA Free

Application
Recommended Usage

Immunohistochemistry-Paraffin

1:50 - 1:200
Application Notes
For IHC-Paraffin, HIER pH 6 retrieval is recommended.

Formulation, Preparation, and Storage

Purification

Protein A purified

Reconstitution

Centrifuge the vial of lyophilized antibody at 12,000 x g for 20 seconds. Reconstitute by adding sterile, distilled water to achieve a final antibody concentration of 1mg/ml.

Formulation

Lyophilized from a 0.2 um filtered solution in PBS with Trehalose

Format

Azide and BSA Free

Preservative

No Preservative

Concentration

LYOPH mg/ml

Shipping

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

Stability & Storage

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.

Background: MUC-1

Mucin 1 (MUC1), also known as episialin, EMA (epithelial membrane antigen), PEM (polymorphic epithelial mucin), and CA-15-3 antigen, is a membrane-bound type I transmembrane glycoprotein (1,2). MUC1 is typically expressed in the luminal or glandular epithelial cells of the gastrointestinal tract, breast, lungs, and more, and is often overexpressed in epithelial cancers, but also serves a protective role against infection and helps regulate inflammatory response (2,3). Human MUC1 is 1255 amino acids (aa) in length with a theoretical molecular weight of 122 kDa; however, depending on the amount of glycosylation can weigh between 250 - 500 kDa (2,4). Structurally, MUC1 consists of a N-terminal domain which contains a signal peptide, a variable number tandem repeat region (VNTR), and a SEA domain, as well a C-terminal domain which has the extracellular domain (ECD), transmembrane domain (TMD), and cytoplasmic tail (CT) (2,3). The VNTR is comprised of between 25 - 125 repeats of a 20 aa conserved sequence (3). MUC1 is heavily O-glycosylated in the VNTR and has moderate N-glycosylation sites following the VNTR and in the ECD (2). Glycosylation contributes to MUC1's functional properties (2). The MUC1 gene contains seven exons, giving rise to several MUC1 isoforms as a result of alternative splicing (2).

Overexpression of mucins, including MUC1, is a feature of many epithelial cancers (1,3,5,6). The presence of truncated glycan structures called tumor-associated carbohydrate antigens (TACAs) on MUC1 play a role in cancer progression and a loss of apical-basal polarity (5). Carbohydrate-binding partners called lectins are the primary binding partners of TACAs that give rise to the pro-tumor microenvironment and metastasis (5). Given this unique feature, TACAs are a potential target for cancer immunotherapies (5). There are a number of vaccines, drugs, and antibodies targeting MUC1 for treatment of a variety of cancers including breast, lung, and prostate (6). In addition to a role in cancer progression, MUC1, and specifically the CT portion, has been shown to have a positive, anti-inflammatory role in a variety of lung and airway infections (7).

References

1. Khodabakhsh, F., Merikhian, P., Eisavand, M. R., & Farahmand, L. (2021). Crosstalk between MUC1 and VEGF in angiogenesis and metastasis: a review highlighting roles of the MUC1 with an emphasis on metastatic and angiogenic signaling. Cancer cell international. https://doi.org/10.1186/s12935-021-01899-8

2. Nath, S., & Mukherjee, P. (2014). MUC1: a multifaceted oncoprotein with a key role in cancer progression. Trends in molecular medicine. https://doi.org/10.1016/j.molmed.2014.02.007

3. Dhar, P., & McAuley, J. (2019). The Role of the Cell Surface Mucin MUC1 as a Barrier to Infection and Regulator of Inflammation. Frontiers in cellular and infection microbiology. https://doi.org/10.3389/fcimb.2019.00117

4. Uniprot (P15941)

5. Beckwith, D. M., & Cudic, M. (2020). Tumor-associated O-glycans of MUC1: Carriers of the glyco-code and targets for cancer vaccine design. Seminars in immunology. https://doi.org/10.1016/j.smim.2020.101389

6. Almasmoum H. (2021). The Roles of Transmembrane Mucins Located on Chromosome 7q22.1 in Colorectal Cancer. Cancer management and research. https://doi.org/10.2147/CMAR.S299089

7. Ballester, B., Milara, J., & Cortijo, J. (2021). The role of mucin 1 in respiratory diseases. European respiratory review : an official journal of the European Respiratory Society. https://doi.org/10.1183/16000617.0149-2020

Long Name

Mucin 1, Cell Surface-associated

Alternate Names

CD227, Episialin, H23AG, KL-6, Mucin-1, PEM, PEMT

Gene Symbol

MUC1

Additional MUC-1 Products

Product Documents for MUC1 Antibody (CL8733) - Azide and BSA Free

Product Datasheets

Certificate of Analysis

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

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Product Specific Notices for MUC1 Antibody (CL8733) - 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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