... Society 2008 catecholamine mammalian heart oxidative phosphorylation Proportional Activation Approach regulation of metabolism work transition During transition from low-to-high work intensity induced by increased pacing frequency or hormones (catecholamines) the demand for ATP and RPP...

... systems. Key words: muscle exercise, oxidative phosphorylation, oxygen- uptake kinetics, phosphocreatine, regulation of metabolism. INTRODUCTION Oxidative phosphorylation is the main source of ATP used to drive skeletal-muscle contraction at low-to-intensive (but not maximal short-term) exercise...

... the idea of the parallel activation of ATP usage and different oxidative-phosphorylation complexes during muscle contraction. Key words: mitochondrial respiration, oxidative phosphorylation, phosphocreatine, regulation of metabolism, skeletal muscle. INTRODUCTION Oxidative phosphorylation is the main...

...-thiolation, regulation of metabolism, yeast. INTRODUCTION Thiol (SH) groups play a remarkably broad range of roles in the cell, with their redox state affecting the activity and structure of many enzymes, receptors and transcription factors. Not sur- prisingly therefore, all organisms contain complex...

... The Biochemical Society, London ©2003 2003 ATP/ADP homoeostasis computer model oxygen-uptake kinetics parallel activation regulation of metabolism Abbreviation used: PCr, phosphocreatine. Biochem. J. (2003) 374, 37 40 (Printed in Great Britain) 37 Training-induced adaptation of oxidative...