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. 2023 Jul 31;66(18):12911–12930. doi: 10.1021/acs.jmedchem.3c00849

Table 2. Binding Affinities of the Fluorescent Ligands in CXCR2 Membranes, CXCR2 Whole Cells, and CXCR1 Membranes Determined by Saturation Binding Assays.

  KD ± SEMa (nM)
compound CXCR2 membranes CXCR2 whole cells CXCR1 membranes
11a 137 ± 12 549 ± 83  
11c 301 ± 31    
11d 9.0 ± 4.9 52 ± 7 101 ± 21
11e 45 ± 4 82 ± 14  
11f 27 ± 3 88 ± 23 372 ± 107
a

All values represent mean ± SEM of n = 5 separate experiments.