Biologically Active Substance
mucin Audio
mu·cin [ myoo-sin ]
Definitions related to mucins:
  • An albuminoid substance containing mucopolysaccharides and protein which is contained in mucus, and gives to the latter secretion its peculiar ropy character. It is found in all the secretions from mucous glands, and also between the fibres of connective tissue, as in tendons.
    NCI
    U.S. National Cancer Institute, 2021
  • Principal component of mucous.
    CRISP Thesaurus
    National Institutes of Health, 2006
  • High molecular weight mucoproteins that protect the surface of EPITHELIAL CELLS by providing a barrier to particulate matter and microorganisms. Membrane-anchored mucins may have additional roles concerned with protein interactions at the cell surface.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
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