1994k-990 cellreceptors cellsurface cellularcontrolmechanisms cellularsignaltransduction chemistry congresses cyclicadenylicacid cyclicamp cyclicamp-dependentproteinkinases cyclicgmp cyclicguanylicacid exercise growthfactors growthsubstances membranelipids metabolism methodology molecularbiology muscles myocardium oncogenes phospholipids phosphorylation physiologicalaspects physiology proteinkinases qh604m71751990 qu58l739c1994 qu93p575431998 qu93p57565151991 receptors research secondmessengers(biochemistry) signaltransduction we103e9551995