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Response to Comment on "A G Protein–Coupled Receptor Is a Plasma Membrane Receptor for the Plant Hormone Abscisic Acid"

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Science  09 Nov 2007:
Vol. 318, Issue 5852, pp. 914
DOI: 10.1126/science.1143320

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Our study provided experimental evidence that GCR2 is a membrane-associated abscisic acid receptor that interacts with the G protein α subunit GPA1 in Arabidopsis. Although we cannot rule out GCR2 as a lanthionine synthetase homolog, our data indicate that it may define a new type of nonclassical G protein–coupled receptor.

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