CFTR

An abbreviation for Cystic Fibrosis Transmembrane Conductance Regulator, which is the protein that, when mutated a certain way, sometimes causes Cystic Fibrosis. Normally, it creates sweat, digestive juices, and mucus in the lungs, pancreas, and liver. When the CFTR protein has a mutation, it misfolds and becomes unable to perform its regular function.