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.
Immunogen
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
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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
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
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
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)
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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