DNAJC5 and infantile neuronal ceroid lipofuscinosis: CSPα is a palmitoylated co-chaperone protein of synaptic vesicles: mutations in its cysteine string domain lead to an adult-onset form of Neuronal Ceroid Lipofuscinosis, CLN4 (Nosková et al., 2011; Zhang and Chandra, 2014; Henderson et al., 2016).