Table 1.

List of analogues and their binding affinities (pKi) in HEK-7BP cells, BSA free assay.

Analogue	HEK-7BP Binding B.S.A. Free Eu-H2 pKi (n)
B7-33	7.28 ± 0.11 (7)
Decanoic acid-PEG6-B7-33	6.63 ± 0.14 (3)
Myristic acid-PEG6-B7-33	6.0 ± 0.11 (3) **
Palmitic acid-PEG6-B7-33	<5 (3)
K(Palm)-PEG6-B7-33	5.71 ± 0.14 (3) ***
B7-33_9K(Palm)	<5 (3)
Tag-B7-33	<5 (3)
Tag-PEG4-B7-33	<5 (3)
Tag-PEG6-B7-33	<5 (3)
K(Palm)-(PEG6)2-B7-33	6.80 ± 0.16 (3)
PA-(PEG6)2-B7-33	6.40 ± 0.10 (3) **
K(Palm)-PEG12-B7-33	6.56 ± 0.52 (3) **
K(PalmGlu)-PEG12-B7-33	7.37 ± 0.10 (3)
Ac K(PalmGlu)-PEG12-B7-33	7.52 ± 0.13 (3)

** p < 0.01; *** p < 0.001 vs. B7-33.