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g (1)
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G&AE
G clef
g’day
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G protein disease
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G protein
G protein (plural G proteins)


noun 
Definition:
 
cell messenger: a substance that carries information from receptors on the cell membrane to effectors within the cell
Encarta® World English Dictionary [World English Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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