constitutively, neuromuscular junction, homeobox gene, oxidative phosphorylation, sertoli cell, purkinje cell, additively, striated muscle, leydig cell, epithelial cell, endogenously, superoxide dismutase, metabolic pathway, bile acid, cellular respiration, umbilical vein, glial cell, anterior pituitary, sinoatrial node, plasminogen activator, xenopus laevis, calcium ion, schwann cell, lymphoid tissue, arabidopsis thaliana, humoral immune response, suppressor gene, sensory neuron, electrical conduction, glutathione peroxidase, focally, superior colliculus, homologous chromosomes, transiently, endoplasmic reticulum, corpus luteum, b lymphocyte, reproducibly, intestinal flora, superfamily, superoxide anion, gamma aminobutyric acid, sacral nerve, mechanistically, phylogenetically, epithelial tissue, innate immunity, corticospinal tract, lateral ventricle, lymphatic vessel, covalently, adenosine triphosphate, adrenal cortex