Interactions between fragments of the α1b-adrenoceptor Interactions (+) or lack of interactions (-) between N-terminally FLAG- and c-myc–tagged fragments of the α1b-adrenoceptor were examined by either coimmunoprecipitation (square brackets) or TR-FRET (parentheses).
| c-myc N-TM1 + TM2 | c-myc N-TM3 + TM4 | c-myc N-TM5 + TM6 | c-myc N-TM7 | |
|---|---|---|---|---|
| FLAG N-TM1 + TM2 | [+] (N.D.) | [-] (N.D.) | [+] (N.D.) | [-] (N.D.) |
| FLAG N-TM3 + TM4 | [-] (-) | [+] (+) | [-] (-) | [-] (-) |
| FLAG N-TM5 + TM6 | [N.D.] (+) | [-] (-) | [-] (N.D.) | [-] (N.D.) |
N.D., not determined.