MUC5B (Mucin 5B, Oligomeric Mucus/Gel-Forming) is a Protein Coding gene. Diseases associated with MUC5B include Pulmonary Fibrosis, Idiopathic and Pneumonia. Among its related pathways are O-linked glycosylation and HIV Life Cycle. MUC5B encodes a member of the mucin family of proteins, which are highly glycosylated macromolecular components of mucus secretions. This family member is the major gel-forming mucin in mucus. It is a major contributor to the lubricating and viscoelastic properties of whole saliva, normal lung mucus and cervical mucus. MUC5B has been found to be up-regulated in some human diseases, including sinus mucosa of chronic rhinosinusitis (CRS), CRS with nasal polyposis, chronic obstructive pulmonary disease (COPD) and H. pylori-associated gastric disease, and it may be involved in the pathogenesis of these diseases.
