Mutation of Vps54 causes motor neuron disease and defective spermiogenesis in the wobbler mouse.
Schmitt-John T, Drepper C, Mussmann A, Hahn P, Kuhlmann M, Thiel C, Hafner M, Lengeling A, Heimann P, Jones JM, et al. Nat Genet. 2005 Nov; 37(11):1213-5. Epub 2005 Oct 23.