Bacterial artificial chromosome (BAC) library (CHORI) was used to obtain a 240 kb BAC (#RP23-312I9) containing the entire mouse Lrrk2 (leucine-rich repeat kinase 2) gene. This BAC contains a FLAG-tag downstream from the start codon. Founder line 6 was established with expression in cerebral cortex, striatum, substantia nigra, internal capsule, and hippocampus at an approximately 6-8 fold greater level than endogenous mouse Lrrk2.