mucin
Noun: A glycoprotein, a nitrogenous substance rich in carbohydrates, that is the main constituent of mucus. It is secreted by mucous membranes and glands, forming a viscous, slimy solution that lubricates and protects internal body surfaces.
Mucin is the key functional component that gives mucus its characteristic slimy and lubricating properties. * The stomach lining secretes mucin to protect itself from acidic gastric juices. * Saliva contains mucin, which helps in swallowing and speech by lubricating the mouth and throat. * Researchers are studying the role of mucin in how cancer cells spread.
- Mucin Expression: A term used in cell biology and pathology to describe the production and presentation of mucin by specific cells or tissues. Changes in mucin expression patterns can be indicators of disease.
- The biopsy showed abnormal mucin expression in the epithelial cells.
- Mucin-Type Glycoprotein: A technical classification emphasizing its chemical structure as a protein with specific types of carbohydrate chains (O-linked oligosaccharides).
- This receptor is a mucin-type glycoprotein on the cell surface.
- Mucinous (adjective): Having the qualities of, resembling, or containing mucin.
- The pathologist identified a mucinous cyst.
- Mucoid (adjective): Resembling mucus; a less specific term than .
- Mucigen (noun): The precursor substance within a cell from which mucin is formed.
- Glycoprotein (a broader category to which mucin belongs)
- Lubricant (describing one of its primary functions)
The word "mucin" has a single, specific meaning in biochemistry and physiology. It does not have other common definitions. It refers exclusively to the described class of glycoproteins found in mucous secretions.
- a nitrogenous substance found in mucous secretions; a lubricant that protects body surfaces