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. Author manuscript; available in PMC: 2009 Sep 2.
Published in final edited form as: Org Biomol Chem. 2008 Oct 30;7(1):76–84. doi: 10.1039/b814682a

Table 3.

Dissociation constants (Kd ± std. error) and stoichiometries (n) of compounds 7-21 with the Htelo, c-kit1, c-kit2 and N-ras quadruplexes, determined by surface plasmon resonance

Htelo
c-kit1
c-kit2
N-ras
Compound Kd/nM n Kd/nM n Kd/nM n Kd/nM n
7 770 ± 80 1.2 a a 800 ± 100 1.3 440 ± 70 0.7
8 250 ± 40 2.2 a a 290 ± 40 2.0 240 ± 40 1.5
9 380 ± 50 2.3 a a 400 ± 50 1.9 460 ± 70 1.6
10 140 ± 60 0.9 25 ± 8 0.4 120 ± 40 0.6 129 ± 3 0.7
11 50 ± 10 1.1 50 ± 20 0.9 130 ± 50 1.3 60 ± 40 0.6
12 28 ± 5 0.8 138 ± 5 1.3 50 ± 10 0.7 21 ± 2 0.8
13 38 ± 9 0.7 37 ± 7 0.8 37 ± 7 0.7 16 ± 3 0.8
14 22 ± 4 1.2 50 ± 20 1.2 40 ± 10 1.2 4 ± 1 0.5
15 23 ± 4 1.0 90 ± 10 1.3 40 ± 10 1.1 7 ± 1 0.8
16 20 ± 8 0.4 49 ± 9 0.4 60 ± 30 0.4 69.3 ± 0.8 0.9
17 25 ± 3 0.8 40 ± 10 0.7 50 ± 10 0.9 17 ± 5 0.6
18 19 ± 3 0.7 35 ± 8 0.6 40 ± 10 0.7 5 ± 1 0.5
19 30 ± 3 0.6 37 ± 3 0.6 40 ± 20 0.6 29 ± 2 1.1
20 13 ± 2 0.8 33 ± 6 0.8 29 ± 9 1.0 3.9 ± 0.8 0.6
21 17 ± 2 0.8 50 ± 10 0.8 30 ± 10 0.9 4.4 ± 0.9 0.6
a

Not determined.