The lack of field-wide access to GBA1 D409V animal models for PD research was one factor that led to MJFF sponsoring the generation and phenotypic characterization of a new GBA1 D409V knock-in (KI) mouse model, which is readily available from The Jackson Laboratory repository (www.jax.org/strain/019106), including pharmaceutical and biotechnology companies performing preclinical testing. Here, GBA1 is linked to Parkinson disease.