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Anti-MUC5B antibody produced in rabbit

enhanced validation

Prestige Antibodies® Powered by Atlas Antibodies, affinity isolated antibody, buffered aqueous glycerol solution

Anti-Mucin-5 subtype B, tracheobronchial, Anti-Mucin-5B precursor, Anti-Cervical mucin, Anti-Sublingual gland mucin, Anti-MUC-5B, Anti-High molecular weight salivary mucin MG1
Human Protein Atlas Number:

biological source


Quality Level



antibody form

affinity isolated antibody

antibody product type

primary antibodies



product line

Prestige Antibodies® Powered by Atlas Antibodies


buffered aqueous glycerol solution

species reactivity



antibody small pack of 25 μL

enhanced validation

orthogonal RNAseq
Learn more about Antibody Enhanced Validation


immunofluorescence: 0.25-2 μg/mL
immunohistochemistry: 1:500-1:1000

immunogen sequence


UniProt accession no.

shipped in

wet ice

storage temp.


Gene Information

human ... MUC5B(727897)

General description

Mucin 5B (MUC5B) gene is mapped to human chromosome 11p15.5. It codes for a 3570 amino acid peptide characterized with a Cys-subdomains of 108 amino acids.


Mucin-5B precursor recombinant protein epitope signature tag (PrEST)


All Prestige Antibodies Powered by Atlas Antibodies are developed and validated by the Human Protein Atlas (HPA) project ( as a result, are supported by the most extensive characterization in the industry.

The Human Protein Atlas project can be subdivided into three efforts: Human Tissue Atlas, Cancer Atlas, and Human Cell Atlas. The antibodies that have been generated in support of the Tissue and Cancer Atlas projects have been tested by immunohistochemistry against hundreds of normal and disease tissues and through the recent efforts of the Human Cell Atlas project, many have been characterized by immunofluorescence to map the human proteome not only at the tissue level but now at the subcellular level. These images and the collection of this vast data set can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. To view these protocols and other useful information about Prestige Antibodies and the HPA, visit
Anti-MUC5B antibody produced in rabbit has been used in immunofluorescence

Biochem/physiol Actions

Mucin 5B (MUC5B) plays a vital role in maintaining immune homeostasis in the lungs by facilitating mucociliary clearance (MCC). Mucins are the key components that imparts gel-like properties to the mucus.(7) Mutation in the gene leads to the development of idiopathic pulmonary fibrosis. Upregulated expression of MUC5B in the ear causes middle ear effusions.

Features and Benefits

Prestige Antibodies® are highly characterized and extensively validated antibodies with the added benefit of all available characterization data for each target being accessible via the Human Protein Atlas portal linked just below the product name at the top of this page. The uniqueness and low cross-reactivity of the Prestige Antibodies® to other proteins are due to a thorough selection of antigen regions, affinity purification, and stringent selection. Prestige antigen controls are available for every corresponding Prestige Antibody and can be found in the linkage section.

Every Prestige Antibody is tested in the following ways:
  • IHC tissue array of 44 normal human tissues and 20 of the most common cancer type tissues.
  • Protein array of 364 human recombinant protein fragments.


Corresponding Antigen APREST70004.

Physical form

Solution in phosphate-buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide

Legal Information

Prestige Antibodies is a registered trademark of Sigma-Aldrich Co. LLC


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 Code

10 - Combustible liquids



Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Certificate of Origin

S H Bernacki et al.
American journal of respiratory cell and molecular biology, 20(4), 595-604 (1999-04-01)
Mucus hypersecretion is characteristic of chronic airway diseases. However, regulatory mechanisms are poorly understood. Human airway epithelial cells grown on permeable supports at the air-liquid interface (ALI) develop a mucociliary morphology resembling that found in vivo. Such cultures provide a
P Sharma et al.
American journal of respiratory cell and molecular biology, 19(1), 30-37 (1998-07-03)
Mucins are high molecular-weight glycoproteins involved in the protection and lubrication of respiratory, gastrointestinal, and reproductive tracts. Hypersecretory diseases such as cystic fibrosis (CF), chronic bronchitis, and asthma result in dysregulated levels of mucin production stemming from increased abundance of
Human Mucin Gene MUC5B, the 10.7-kb Large Central Exon Encodes Various Alternate Subdomains Resulting in a Super-repeat STRUCTURAL EVIDENCE FOR A 11p15.5 GENE FAMILY
Desseyn JL, et al.
The Journal of Biological Chemistry, 272, 3168-3178 (1997)
C Wickström et al.
The Biochemical journal, 334 ( Pt 3), 685-693 (1998-09-08)
Mucins from human whole saliva, as well as from respiratory- and cervical-tract secretions, were subjected to density-gradient centrifugation in CsCl/0.5 M guanidinium chloride. A polydisperse population of MUC5B mucins was demonstrated in all samples using anti-peptide antisera (LUM5B-2, LUM5B-3 and
Johanna Schagen et al.
Laboratory investigation; a journal of technical methods and pathology, 98(11), 1478-1486 (2018-08-10)
The nasal epithelium is the initial contact between the external environment and the respiratory tract and how it responds to noxious stimuli and repairs epithelial damage is important. Growing airway epithelial cells in culture at air-liquid interface allows for a

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