TABLE 5

Affinity (pKd or pKi) of CXCR2 ligands at in silico based site-directed mutagenesis human CXCR2 mutants

Displacement of 125I-CXCL8 binding to COS-7 cell membranes expressing indicated human single point mutants. The data are presented as mean ± S.E.M. of at least three independent experiments.

CXCR2pKd CXCL8pKi
SB265610Compound 1
WT9.40 ± 0.147.68 ± 0.117.18 ± 0.13
S1072.63A9.09 ± 0.077.10 ± 0.136.73 ± 0.09
F1303.36A9.65 ± 0.297.55 ± 0.17<4
Q2165.43E9.01 ± 0.127.56 ± 0.096.47 ± 0.11
F2205.47L9.06 ± 0.057.34 ± 0.126.07 ± 0.08
L2716.55A9.18 ± 0.126.76 ± 0.316.22 ± 0.04
E3007.39S9.04 ± 0.137.21 ± 0.126.79 ± 0.05
E3007.39Q9.00 ± 0.147.26 ± 0.096.69 ± 0.09