constitutively, plasma membrane, reversibly, umbilical vein, calcium ion, focally, corpus luteum, purkinje cell, neuromuscular junction, covalently, bile acid, pharmacologically, immunologically, biochemically, cytochrome c, enzymatically, suppressor gene, oxidative phosphorylation, adenosine diphosphate, angiotensin ii, beta endorphin, luteinizing hormone, serum albumin, anterior pituitary, adrenal cortex, adenosine triphosphate, epithelial cell, endoplasmic reticulum, cellular respiration, plasminogen activator, arabinose, gamma aminobutyric acid, superoxide dismutase, endogenously, intramuscularly, skeletal muscle, inorganic phosphate, choroid plexus, superoxide anion, distally, sertoli cell, adrenocorticotropic hormone, carboxylic acid, yolk sac, lymphoid tissue, leydig cell, nicotinic acid, lateral ventricle, metastatic tumor, peritoneal cavity, amino acid, immunoglobulin g, anterior pituitary gland