The "intracellular" poly(3-hydroxybutyrate) (PHB) depolymerase of Rhodospirillum rubrum is a periplasm-located protein with specificity for native PHB and with structural similarity to extracellular PHB depolymerases

红螺菌的“细胞内”聚（3-羟基丁酸）（PHB）解聚酶是一种位于周质中的蛋白质，对天然 PHB 具有特异性，并且与细胞外 PHB 解聚酶具有结构相似性