Definition: intracellular membrane-associated proteins activated by several (ß-adrenergic) receptors; they serve as second messengers or transducers of the receptor-initiated response to intracellular elements such as enzymes to initiate an effect. These proteins have a high affinity for guanine nucleotides and hence are named G proteins.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
© Copyright 2019 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.