Immunologic Factor
porin Audio
po·rin
Subclass of:
Ion Channel
Definitions related to porin:
  • Porins are protein molecules that were originally found in the outer membrane of GRAM-NEGATIVE BACTERIA and that form multi-meric channels for the passive DIFFUSION of WATER; IONS; or other small molecules. Porins are present in bacterial CELL WALLS, as well as in plant, fungal, mammalian and other vertebrate CELL MEMBRANES and MITOCHONDRIAL MEMBRANES.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
  • (pore forming protein) Family of proteins used by lymphocytes and other cells to attack neighboring cells by forming pores in their outer membranes, leading to osmolysis; may be homologous to C9 complement.
    CRISP Thesaurus
    National Institutes of Health, 2006
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