Developed in collaboration with The Michael J. Fox Foundation, this model is a double knockout that contains deletions of both the Lrrk2 gene, encoding for the leucine-rich repeat kinase 2, as well as the Lrrk1 gene, encoding for the leucine-rich repeat kinase 1. Mutations in Lrrk2 are the most common monogenic cause of Parkinson's disease. This model is useful in understanding Lrrk biology. Download our review of Animal Models of Parkinson's Disease.