HPLC/analytical grade reagents were used throughout. 1,1-carbonydiimidiazole, triethylamine, iodomethane, iodomethane-d3, iodoethane, iodoethane-d5, iodopropane, formic acid, citric acid, methanol, disodium hydrogen phosphate, chloroform, ammonium formate, acetonitrile, 1-butanol, and analytical standards for saturated and unsaturated fatty acids were purchased from Sigma-Aldrich. All lipid extractions were performed in 2 mL polypropylene LoBind safe-lock tubes (Eppendorf).
Cell culture reagents were purchased from Life Technologies. Mouse anti-STXBP1 antibody was purchased from BD Biosciences. pCMV-STXBP1-emGFP, pCMV-STXBP1, NPY-hPLAP, and NPY-mCherry were prepared as previously described (Arunachalam et al, 2008 (link); Martin et al, 2013 (link); Tomatis et al, 2013 (link)). STXBP1Δ317-333 and STXBP1F115E mutants were made using the quick-change lightning site-directed mutagenesis kit (Strategene, USA) and the mutational primer
5′-GACTTTTCCTCTAGCAAGAGGATGATGCCCCAGTACCAGAAGGAGC-3′, as previously described (Martin et al, 2013 (link)). All constructs were sequenced at The Australian Genome Research Facility, located at The University of Queensland.
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