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Monoclonal Anti-MUC5B antibody produced in mouse

clone 8C11, ascites fluid

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biological source


Quality Level



antibody form

ascites fluid

antibody product type

primary antibodies


8C11, monoclonal

mol wt

antigen ~38.21 kDa

species reactivity



indirect ELISA: suitable
western blot: 1:500-1:1000



NCBI accession no.

UniProt accession no.

shipped in

dry ice

storage temp.


target post-translational modification


Gene Information

human ... MUC5B(727897)

General description

Mucin 5B (MUC5B) is a high molecular mass, heavily O-glycosylated gel-forming mucin. It is encoded by the gene mapped to human chromosome 11p15.5. MUC5B is found in bronchus glands, submaxillary glands, endocervix, gall bladder, and pancreas.


MUC5B (XP_039877.9, 4186 a.a. ~ 4295 a.a) partial recombinant protein with GST tag. MW of the GST tag alone is 26 KDa.



Monoclonal Anti-MUC5B antibody produced in mouse has been used in immunofluorescence .

Biochem/physiol Actions

MUC5B is salivary mucin that might contribute to the lubrication, hydration, pathogen exclusion, and viscoelastic properties of the whole saliva. The protein acts as a marker of mucous gland cells. Mouse MUC5B plays a vital role in maintaining immune homeostasis in the lungs. It is also involved in preventing infections in the airways and middle ear by facilitating mucociliary clearance (MCC). Mutation in the MUC5B gene leads to the development of idiopathic pulmonary fibrosis. Overexpression of the gene stimulates aggressive behavior of breast cancer MCF7 cells.

Physical form

Clear solution


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Storage Class

11 - Combustible Solids




Not applicable


Not applicable

Certificates of Analysis (COA)

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Hélène Valque et al.
PloS one, 7(10), e46699-e46699 (2012-10-12)
The mucin MUC5B has a critical protective function in the normal lung, salivary glands, esophagus, and gallbladder, and has been reported to be aberrantly expressed in breast cancer, the second leading cause of cancer-related deaths among women worldwide. To understand
J L Desseyn et al.
The Journal of biological chemistry, 272(27), 16873-16883 (1997-07-04)
MUC5B, mapped clustered with MUC6, MUC2, and MUC5AC to chromosome 11p15.5, is a human mucin gene of which the genomic organization is being elucidated. We have recently published the sequence and the peptide organization of its huge central exon, 10,713
Laura A Hancock et al.
Nature communications, 9(1), 5363-5363 (2018-12-19)
The gain-of-function MUC5B promoter variant rs35705950 is the dominant risk factor for developing idiopathic pulmonary fibrosis (IPF). Here we show in humans that MUC5B, a mucin thought to be restricted to conducting airways, is co-expressed with surfactant protein C (SFTPC)
Michelle G Roy et al.
Nature, 505(7483), 412-416 (2013-12-10)
Respiratory surfaces are exposed to billions of particulates and pathogens daily. A protective mucus barrier traps and eliminates them through mucociliary clearance (MCC). However, excessive mucus contributes to transient respiratory infections and to the pathogenesis of numerous respiratory diseases. MUC5AC
Lina M Salazar-Peláez et al.
PloS one, 10(3), e0119717-e0119717 (2015-03-15)
Vitronectin, a multifunctional glycoprotein, is involved in coagulation, inhibition of the formation of the membrane attack complex (MAC), cell adhesion and migration, wound healing, and tissue remodeling. The primary cellular source of vitronectin is hepatocytes; it is not known whether

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