cell communication regulation of molecular function cellular response to stimulus regulation of biological quality cell communication regulation of molecular function cellular response to stimulus regulation of biological quality cell communication regulation of molecular function cellular response to stimulus regulation of biological quality cell communication regulation of molecular function cellular response to stimulus regulation of biological quality cell communication regulation of molecular function cellular response to stimulus regulation of biological quality cell communication regulation of molecular function cellular response to stimulus regulation of biological quality cell communication regulation of molecular function cellular response to stimulus regulation of biological quality cell communication regulation of molecular function cellular response to stimulus regulation of biological quality cell communication regulation of molecular function cellular response to stimulus regulation of biological quality cell communication regulation of molecular function cellular response to stimulus regulation of biological quality cell communicationcell communication regulation of molecular functionregulation of molecular function cellular response to stimuluscellular response to stimulus regulation of biological qualityregulation of biological quality protein binding receptor regulator activity protein binding receptor regulator activity protein binding receptor regulator activity protein binding receptor regulator activity protein binding receptor regulator activity protein binding receptor regulator activity protein binding receptor regulator activity protein binding receptor regulator activity protein binding receptor regulator activity protein binding receptor regulator activity protein bindingprotein binding receptor regulator activityreceptor regulator activity extracellular region extracellular region extracellular region extracellular region extracellular region extracellular region extracellular region extracellular region extracellular region extracellular region extracellular regionextracellular region