Access

Letter

Nature Cell Biology 6, 540–546 (1 June 2004) | doi:10.1038/ncb1133

The endogenous ligand Stunted of the GPCR Methuselah extends lifespan in Drosophila

Svetlana Cvejic , Zheng Zhu , Sarah J. Felice , Yemiliya Berman & Xin-Yun Huang

Many extracellular signals are transmitted to the interior of the cell by receptors with seven membrane-spanning helices that trigger their effects by means of heterotrimeric guanine-nucleotide-binding regulatory proteins (G proteins). These G-protein-coupled receptors (GPCRs) control various physiological functions in evolution from pheromone-induced mating in yeast to cognition in humans.