noun
- a substance that is converted into mucin; a precursor of mucin found in mucus-secreting cells and tissues.
Usage: technical; biology; biochemistry
Examples
- Mucinogen is stored in granules within goblet cells of the intestinal epithelium.
- The enzyme pepsin can break down mucinogen into active mucin.
- Salivary glands produce mucinogen, which is secreted as part of saliva.
- Mucinogen accumulates in the rough endoplasmic reticulum before being packaged into vesicles.
- The conversion of mucinogen to mucin occurs during secretion from the cell.