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. Author manuscript; available in PMC: 2010 Aug 22.
Published in final edited form as: J Biomed Sci. 2006 Jul 18;13(6):797–811. doi: 10.1007/s11373-006-9102-x

Figure 4.

Figure 4

DAMGO-stimulated [35S]-GTPγS coupling in wild-type and µ-opioid receptor knockout mice. [35S]-GTPγS coupling concentration–response curves for DAMGO were obtained in the brain from wild-type and µ-opioid receptor knockout mice without any treatment. Data are expressed as % of basal level (mean ± S.E.M.) under identical conditions of three independent experiments.