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MUC4 (Mucin 4 / Gastric Mucin) Antibody [MUC4/3084]

In Stock
Catalog Number Formulation Size Price
4585-MSM4-P0
Purified Ab with BSA and Azide at 200ug/ml
20ug
$229.00
4585-MSM4-P1
Purified Ab with BSA and Azide at 200ug/ml
100ug
$519.00
4585-MSM4-P1ABX
Purified Ab WITHOUT BSA and Azide at 1.0mg/ml
100ug
$519.00
Flat Rate Domestic: $75 | Orders outside the US - Contact Us for Order Information | Ships next business day

Applications & Dilutions

Applications Tested Dillution Protocol Note
Immunohistochemistry (IHC)
1-2ug/ml
30 min at RT. Staining of formalin-fixed tissues requires heating tissue sections in 10mM Tris with 1mM EDTA, pH 9.0, for 45 min at 95°C followed by cooling at RT for 20 minutes

Summary

The major constituents of mucus, the viscous secretion that covers epithelial surfaces such as those in the trachea, colon, and cervix, are highly glycosylated proteins called mucins. These glycoproteins play important roles in the protection of the epithelial cells and have been implicated in epithelial renewal and differentiation. This gene encodes an integral membrane glycoprotein found on the cell surface, although secreted isoforms may exist. MUC-4 transcripts have been detected in normal respiratory epithelium and lung. MUC-4 is a very specific (100%) and sensitive (90%) marker of lung adenocarcinomas and is negative for mesotheliomas. Reportedly, MUC-4 expression in invasive ductal carcinoma of the pancreas is an independent factor for poor prognosis.

Product Properties & Targets

Antibody Type
Host
Mouse
Applications
Species Reactivity
Isotype / Light Chain
IgG1 / Kappa
Cellular Localization
Cell membrane, Secreted
Gene Name
Positive Control
Colon or esophagus., Stomach
Immunogen
Recombinant fragment (around aa 1730-1864) of human MUC4 protein (exact sequence is proprietary)
Alternate Names
Mucin-4, Ascites sialoglycoprotein, Pancreatic adenocarcinoma mucin, Testis mucin, Tracheobronchial mucin, Ascites sialoglycoprotein 1 / 2; ASGP; ASGP-1; ASGP-2; MUC-4; MUC4; Mucin 4 cell surface associated; Mucin 4 tracheobronchial; Mucin-4 beta chain; Pancreatic adenocarcinoma mucin; Testis mucin; Tracheobronchial mucin

Database Links

Entrez Gene ID
SwissProt

Additional Information

Clone
MUC4/3084
Chromosome Location
3q29
Mol. Weight of Antigen
235kDa

Functions

  • Membrane-bound mucin, a family of highly glycosylated proteins that constitute the major component of the mucus, the slimy and viscous secretion covering epithelial surfaces (PubMed:10880978). These glycoproteins play important roles in the protection of the epithelium and are implicated in epithelial renewal and differentiation (PubMed:10880978). Regulates cellular behavior through both anti-adhesive effects on cell-cell and cell-extracellular matrix interactions and its ability to act as an intramembrane ligand for ERBB2. Plays an important role in proliferation and differentiation of epithelial cells by inducing specific phosphorylation of ERBB2. In polarized epithelial cells, segregates ERBB2 and other ERBB receptors and prevents ERBB2 from acting as a coreceptor. The interaction with ERBB2 leads to enhanced expression of CDKN1B. The formation of a MUC4-ERBB2-ERBB3-NRG1 complex leads to down-regulation of CDKN1B, resulting in repression of apoptosis and stimulation of proliferation. Its ability to promote tumor growth may be mainly due to repression of apoptosis as opposed to proliferation.

Key References

  • Amatya VJ, et al. Mod Pathol, 2017 May.

Storage & Stability

Antibody with azide - store at 2 to 8°C. Antibody without azide - store at -20 to -80°C. Antibody is stable for 24 months. Non-hazardous. No MSDS required.

Limitations

This antibody is available for research use only and is not approved for use in diagnosis.

Supplied as

200ug/ml of Ab Purified from Bioreactor Concentrate by Protein A/G. Prepared in 10mM PBS with 0.05% BSA & 0.05% azide. Also available WITHOUT BSA & azide at 1.0mg/ml.

Warranty

There are no warranties, expressed or implied, which extend beyond this description. Company is not liable for any personal injury or economic loss resulting from this product.

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