Mutations in Drosophila Swiss cheese (SWS) or its vertebrate orthologue neuropathy target esterase (NTE). respectively. cause progressive neuronal degeneration in Drosophila and mice and a complex syndrome in humans that includes mental retardation. spastic paraplegia and blindness. https://www.bekindtopets.com/mega-super-Thread-Sequins-Embroidered-Georgette-p6797-mega-pick/