Adenylate Kinase–Catalyzed Phosphotransfer in the Myocardium
نویسندگان
چکیده
منابع مشابه
Adenylate kinase-catalyzed phosphotransfer in the myocardium : increased contribution in heart failure.
Although the downregulation of creatine kinase activity has been associated with heart failure, creatine kinase-deficient transgenic hearts have a preserved contractile function. This suggests the existence of alternative phosphotransfer pathways in the myocardium, the identity of which is still unknown. In this study, we examined the contribution of adenylate kinase-catalyzed phosphotransfer t...
متن کاملDecline of Phosphotransfer and Substrate Supply Metabolic Circuits Hinders ATP Cycling in Aging Myocardium
Integration of mitochondria with cytosolic ATP-consuming/ATP-sensing and substrate supply processes is critical for muscle bioenergetics and electrical activity. Whether age-dependent muscle weakness and increased electrical instability depends on perturbations in cellular energetic circuits is unknown. To define energetic remodeling of aged atrial myocardium we tracked dynamics of ATP synthesi...
متن کاملKinetics of adenylate metabolism in human and rat myocardium.
Pathways producing and converting adenosine have hardly been investigated in human heart, contrasting work in other species. We compared the kinetics of enzymes associated with purine degradation and salvage in human and rat heart cytoplasm assaying for adenosine deaminase, nucleoside phosphorylase, xanthine oxidoreductase, AMP deaminase, AMP- and IMP-specific 5'-nucleotidases, adenosine kinase...
متن کاملAdenylate kinase phosphotransfer communicates cellular energetic signals to ATP-sensitive potassium channels.
Transduction of energetic signals into membrane electrical events governs vital cellular functions, ranging from hormone secretion and cytoprotection to appetite control and hair growth. Central to the regulation of such diverse cellular processes are the metabolism sensing ATP-sensitive K+ (K(ATP)) channels. However, the mechanism that communicates metabolic signals and integrates cellular ene...
متن کاملIncreased Contribution in Heart Failure
Although the downregulation of creatine kinase activity has been associated with heart failure, creatine kinase–deficient transgenic hearts have a preserved contractile function. This suggests the existence of alternative phosphotransfer pathways in the myocardium, the identity of which is still unknown. In this study, we examined the contribution of adenylate kinase–catalyzed phosphotransfer t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Circulation Research
سال: 1999
ISSN: 0009-7330,1524-4571
DOI: 10.1161/01.res.84.10.1137