MUC1 Antibody (SPM132) - Azide and BSA Free

Novus Biologicals | Catalog # NBP2-34737

Novus Biologicals
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Key Product Details

Validated by

Knockout/Knockdown, Biological Validation

Species Reactivity

Validated:

Human

Cited:

Human

Applications

Validated:

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

Cited:

Western Blot

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgG1 kappa Clone # SPM132

Format

Azide and BSA Free
View all MUC-1 Primary Antibodies »

Product Specifications

Immunogen

Human milk fat globule membranes (Uniprot: P15941)

Localization

Cytoplasmic and cell surface

Marker

Epithelial Marker

Specificity

In Western blotting, it recognizes proteins in MW range of 265-400kDa, identified as different glycoforms of EMA. This monoclonal antibody reacts with the DTRP epitope in the tandem repeats. The alpha subunit has cell adhesive properties. It can act both as an adhesion and an anti-adhesion protein. EMA may provide a protective layer on epithelial cells against bacterial and enzyme attack. The beta subunit contains a C-terminal domain, which is involved in cell signaling, through phosphorylations and protein-protein interactions. In immunohistochemical assays, it superbly stains routine formalin/paraffin carcinoma tissues. Antibody to EMA is useful as a pan-epithelial marker for detecting early metastatic loci of carcinoma in bone marrow or liver.

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 (NBP2-32877).

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

Scientific Data Images for MUC1 Antibody (SPM132) - Azide and BSA Free

Western Blot: MUC1 Antibody (SPM132)Azide and BSA Free [NBP2-34737]

Western Blot: MUC1 Antibody (SPM132)Azide and BSA Free [NBP2-34737]

MUC1-Antibody-SPM132-Azide-and-BSA-Free-Western-Blot-NBP2-34737-img0006.jpg
Immunohistochemistry-Paraffin: MUC1 Antibody (SPM132) - Azide and BSA Free [NBP2-34737]

Immunohistochemistry-Paraffin: MUC1 Antibody (SPM132) - Azide and BSA Free [NBP2-34737]

Immunohistochemistry-Paraffin: MUC1 Antibody (SPM132) - Azide and BSA Free [NBP2-34737] - Formalin-fixed, paraffin-embedded human Breast cancer stained with EMA Monoclonal Antibody (SPM132)
MUC1 Antibody (SPM132) - Azide and BSA Free

Western Blot: MUC1 Antibody (SPM132) - Azide and BSA Free [NBP2-34737] -

Knockdown of U2AF1 decreased luminal A BC cell dissemination in vivo. Luminal A ER+ MCF-7 cells, transfected with negative control siRNA (siRNA-C) or siRNA targeting U2AF1 (siRNA-U2AF1) were injected in presence of estradiol (E2) ± neutrophils (Neu) into zebrafish transgenic embryos, with green fluorescent blood vessels, & analyzed as described in materials & methods. (A) Migration in vitro (n = 6–12). (B)In vivo dissemination in presence of E2 ± Neu (n = 38–41). Scale bar = 100 µm. (C) Western blot analysis for confirmation of siRNA-U2AF1 transfection & ICAM-1, VCAM-1, & MUC-1 expression. (D) Focal adhesion area (n = 7). Scale bar = 10 µm. (E) Proliferation in vitro (n = 12). Representative images of zebrafish embryos with disseminated MCF-7 cells & immunocytochemistry analysis of vinculin expression are shown. Arrows show disseminated MCF-7 cells & arrowheads show focal adhesions. BV = blood vessels. Data are presented as mean ± SEM. Two-tailed Student’s t-test *P < 0.05, **P < 0.01, ns, not significant. Data are represented of at least two independent experiments. Image collected & cropped by CiteAb from the following publication (https://pubmed.ncbi.nlm.nih.gov/33330095), licensed under a CC-BY license. Not internally tested by Novus Biologicals.
MUC1 Antibody (SPM132) - Azide and BSA Free

Western Blot: MUC1 Antibody (SPM132) - Azide and BSA Free [NBP2-34737] -

Knockdown of RPN2 decreased luminal B BC cell dissemination in vivo. Luminal B ER+ T47D cells, transfected with negative control siRNA (siRNA-C) or siRNA targeting RPN2 (siRNA-RPN2) were injected + estradiol (E2) ± neutrophils (Neu) into zebrafish transgenic embryos with green fluorescent blood vessels & analyzed as described in materials & methods. (A) Migration in vitro (n = 6). (B)In vivo dissemination of transfected T47D in presence of E2 ± Neu (n = 23–26). Scale bar = 100 µm. (n = 23–26). (C) Western blot analysis for confirmation of siRNA-RPN2 transfection & VCAM-1, ICAM-1, & MUC-1 expression. (D) Focal adhesions area (n = 5–6). Scale bar = 10 µm. (E) Proliferation (n = 6). Representative images of zebrafish embryos with disseminated luminal B T47D BC cells & immunocytochemistry analysis of vinculin expression are shown. Arrows show disseminated T47D & arrowheads show focal adhesions. BV = blood vessels. Data are presented as mean ± SEM. Two-tailed Student’s t-test *P < 0.05, ***P < 0.001, ns, not significant. Data are represented of at least two independent experiments. Image collected & cropped by CiteAb from the following publication (https://pubmed.ncbi.nlm.nih.gov/33330095), licensed under a CC-BY license. Not internally tested by Novus Biologicals.

Applications for MUC1 Antibody (SPM132) - Azide and BSA Free

Application
Recommended Usage

Flow Cytometry

0.5-1ug/million cells

Immunocytochemistry/ Immunofluorescence

1-2ug/ml

Immunohistochemistry-Paraffin

0.5-1ug/ml

Western Blot

0.5-1ug/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.

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Flow Cytometry

Formulation, Preparation, and Storage

Purification

Protein A or G purified

Formulation

10 mM PBS

Format

Azide and BSA Free

Preservative

No Preservative

Concentration

1.0 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: 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 (SPM132) - Azide and BSA Free

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Product Specific Notices for MUC1 Antibody (SPM132) - 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.

Citations for MUC1 Antibody (SPM132) - Azide and BSA Free

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Protocols

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FAQs for MUC1 Antibody (SPM132) - Azide and BSA Free

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  • Q: I would like to perform a sandwich assay for the determination of MUC1 protein. May you suggest me some antibodies that can be used together? In particular, if possible, I should need antibodies product in mouse or rabbit.

    A:

    Unfortunately we are not aware of a pair of antibodies that have been used in sandwich ELISA in particular. If you are interested in trying two you may find our Innovators Reward Program to be helpful.

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