
Keywords: DAMGO, (2S)-2-[[2-[[(2R)-2-[[(2S)-2-amino-3-(4-hydroxyphenyl)propanoyl] amino]propanoyl]amino]acetyl]-methylamino]-N-(2-hydroxyethyl)-3-phenylpropanamide; DMSO, Dimethyl sulfoxide; DsRed, Discosoma sp. red fluorescent protein; EGFP, enhanced green fluores