PPT1 and infantile neuronal ceroid lipofuscinosis: Unbiased proteomics with acyl resin-assisted capture reveals diverse novel substrates of the depalmitoylating enzyme palmitoyl protein thioesterase 1 (PPT1) at the synapse, with potential implications for the pathogenesis of neuronal ceroid lipofuscinosis, disulfide bond formation, synaptic adhesion and additional critical synaptic functions.