Commonly used PD models include transgenic mice expressingmutant forms of the human alpha-synuclein (SNCA)gene, such as the A30P and A53T mutations (Unger et al.,2006; Grigoryan, Bazyan, 2007; Korolenko et al., 2020).These models display motor impairments that correlate withnigrostriatal degeneration (Chia et al., 2020). The gene discussed is SNCA; the disease is Parkinson disease.