Area: Plant/Algal Physiology Chloroplastic Glutathione Peroxidase (Gpx) protects from oxidative stress induced damage Chloroplastic Glutathione Peroxidase (GPX) belongs to the group of enzymes that protect cells against oxidative damage generated by reactive oxygen species (ROS). An antibody against GPX, that is available on antibodies-online, has been used in a study that has been published recently. The researchers addressed the question what effect reactive oxygen species have on the cellular growth rate, cell viability and morphology in Saccharomyces cerevisiae KNU5377Y and BY4741. The study can be found here: Source: Cell Stress Chaperones. 2010 Aug 2. Decarbonylated cyclophilin A Cpr1 protein protects Saccharomyces cerevisiae KNU5377Y when exposed to stress induced by menadione. Kim IS, Jin I, Yoon HS.