Putative neutrophil cytosol factor 1C is a protein that in humans is encoded by the NCF1Cgene. It relates to a type of white blood cell called a neutrophil. The Neutrophil Cytosolic Factor 1C (NCF1C) gene is responsible for encoding the 47 kDA cytosolic subunit of NADPH oxidase.[3] The NCF1C gene is located near two pseudogenes and when the NCF1C gene recombines with them, the NCF1C gene will inactivate and can lead to chronic granulomatous disease.[4]