The COPII pathway has previously been implicated in protein delivery to cytoplasmic LD setting a precedence for the interaction we observed with LAPS. Thus, given our preliminary data showing interaction between Sec 23/24 heterodimer, PML-NBs and LAPS we are now pursuing the hypothesis that lipid membrane deformation and/or cargo transport activity in the nucleus by COPII proteins could play a role in lipid homeostasis.