Redox state of Protein Kinase A RIα coordinates lysosomal calcium signaling and mitochondrial homeostasis.
Protein Kinase A (PKA) Regulatory RIα cysteine redox state regulates docking to D-AKAP1 and may control Drp1 phosphorylation, a principal mediator of mitochondrial fission. RIα C17S knock-in (KI) mice, unable to form disulfides and therefore mimicking the reduced kinase, exhibited enlarged dysfunctional mitochondria. U...