TABLE 2

Comparison of the cAMP dose response induced by NECA and CGS21680 in A2AR mutants

NECACGS21680
pEC50aChange in EC50 Relative to WTbpEC50aChange in EC50 Relative to WT
WT9.05 ± 0.0518.27 ± 0.291
S67A8.50 ± 0.143.48.40 ± 0.230.62
E169A7.87 ± 0.18****15.18.07 ± 0.181.58
H264A8.18 ± 0.17**7.47.52 ± 0.205.62
L267A8.81 ± 0.081.79.66 ± 0.19**0.04
  • WT, wild type.

  • a pEC50 values are expressed as the mean ± S.E.M. calculated from four independent experiments, each performed in triplicate. Values are stated as significantly different from the wild-type receptor using a one-way analysis of variance with Dunnett’s post test.

  • ** P < 0.005; ****P < 0.0001.