Tags: Protein.
Internexin alpha-internexin is a Class IV intermediate filament approximately 66 KDa. The protein was originally purified from rat optic nerve and spinal cord. The protein copurifies with other neurofilament subunits as it was originally discovered however in some mature neurons it can be the only neurofilament expressed. The protein is present in developing neuroblasts and in the Central Nervous System of adults.
