The UPR takes place in all eukaryotes and is currently the best understood model of inter-organellar signal transduction system.
未折叠蛋白反应存在于所有的真核细胞中，是人们了解最多的细胞器间信号传导系统模型。
2
Peroxisomes are organelles that perform a variety of functions, including the metabolism of hydrogen peroxide and the oxidation of fatty acids. Peroxisomes do not possess organellar DNA;