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Science 7 October 2005:
Vol. 310. no. 5745, pp. 71 - 73
DOI: 10.1126/science.1118580
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Viewpoint

G Proteins Go Green: A Plant G Protein Signaling FAQ Sheet

Sarah M. Assmann

Plants, like animals, use signal transduction pathways based on heterotrimeric guanine nucleotide–binding proteins (G proteins) to regulate many aspects of development and cell signaling. Some components of G protein signaling are highly conserved between plants and animals and some are not. This Viewpoint compares key aspects of G protein signal transduction in plants and animals and describes the current knowledge of this system in plants, the questions that still await exploration, and the value of research on plant G proteins to scientists who do not study plants. Pathways in Science's Signal Transduction Knowledge Environment Connections Maps database provide details about the emerging roles of G proteins in several cellular processes of plants.

Biology Department, Pennsylvania State University, 208 Mueller Laboratory, University Park, PA 16802, USA.

E-mail: sma3{at}psu.edu

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