Neurofibromin 1 Proteins and Enzymes

Neurofibromin 1 (NF1) is a suspected negative regulator of the ras signal transduction pathway. Neurofibromin is known to regulate the GTPase HRAS, causing the hydrolyzation and inactivation of GTP. Defects in NF1 lead to Neurofibromatosis disease, Recklinghausen disease or Watson disease. Neurofibromin has not been purified, therefore, most of the information regarding this protein has been deduced from homology analysis of its gene sequence.