noun
- a protein that forms pores in cell membranes, allowing the passage of ions and small molecules
Usage: technical; biology; biochemistry
Examples
- Porins are found in the outer membranes of gram-negative bacteria.
- The porin structure allows water and ions to pass through the bacterial cell wall.
- Scientists study porins to understand how bacteria transport nutrients.
- Mitochondrial porins play a crucial role in cellular energy production.
- The antibiotic resistance of some bacteria is related to changes in porin expression.