noun, plural: porins
A transmembrane protein that assemble together with other porins to form a pore across membranes (i.e. plasma membrane, mitochondrial membrane, and nuclear envelope)
Porins are proteins that assemble to form a complex that acts as channel where molecules can pass through. Examples of eukaryotic porins include the mitochondrial membrane porins that make up the voltage-dependent anion-selective channel and nucleoporins that form the nuclear pore complex.
Abbreviation / Acronym: por(e) + -in