| 摘要 |
Disclosed are constitutively activated, non-endogenous versions of endogenous human GPCRs comprising the following amino acid sequence region (C-terminus to N-terminus orientation) and/or the following nucleic acid sequence region (3' to 5' orientation) transversing the transmembrane-6 (TM6) and intracellular loop-3 (IC3) regions of the GPCR:and/orrespectively. In a preferred embodiment, P1 and Pcodon are endogenous proline and an endogenous nucleic acid encoding region encoding proline, respectively, located within TM6 of the non-endogenous GPCR; AA15 and (AA-codon)15 are 15 endogenous amino acid residues and 15 codons encoding endogenous amino acid residues, respectively; and X and Xcodon are non-endogenous lysine and non-endogenous nucleic acid region encoding lysine, respectively, located within IC3 of the non-endogenous GPCR. The purified and isolated non-endogenous human GPCRs having these mutations, and the receptors incorporated into mammalian cells, are well within the present disclosure. |
