| Name . | Anchor . | Position of charge . | Charged group . | LogP . | pKa . | Channel . | pH . | ΔV ± SEM . | n . | P . |
|---|---|---|---|---|---|---|---|---|---|---|
| mV | ||||||||||
| Wu110 | DHAA | None | None | 4.48 | — | 3R | 7.4 | 0.6 ± 0.3 | 4 | NS |
| M | 7.4 | –1.5 ± 0.4 | 3 | NS | ||||||
| Wu111 | DHAA | None | None | 4.99 | — | 3R | 7.4 | 1.8 ± 1.2 | 3 | NS |
| DHAA | DHAA | p1 | -COOH | 5.57 | 4.55 | 3R | 7.4 | –13.6 ± 0.8 | 11 | <0.0001 |
| 3R | 10 | –24.7 ± 1.3 | 9 | <0.0001 | ||||||
| WT | 10 | –1.6 ± 0.3 | 7 | 0.0019 | ||||||
| M | 10 | –11.6 ± 1.0 | 3 | 0.0069 | ||||||
| AA | AA | p1 | -COOH | 4.95 | 4.59 | 3R | 7.4 | –16.0 ± 0.9 | 4 | 0.0004 |
| Wu180 | DHAA | p2 | -COOH | 5.68 | 4.79 | 3R | 5.5 | 1.6 ± 0.5 | 4 | 0.0431 |
| 3R | 7.4 | –11.0 ± 1.4 | 5 | 0.0013 | ||||||
| 3R | 10 | –19.2 ± 2.7 | 5 | 0.0022 | ||||||
| WT | 10 | –2.4 ± 0.4 | 4 | 0.0078 | ||||||
| Wu164 | DHAA | p2 | -SO3H | 4.27 | –0.62 | 3R | 7.4 | –18.0 ± 0.6 | 4 | <0.0001 |
| WT | 7.4 | –4.1 ± 0.6 | 4 | 0.0061 | ||||||
| M | 7.4 | –6.6 ± 1.2 | 6 | 0.0033 | ||||||
| Wu179 | DHAA | p3 | -COOH | 6.13 | 4.91 | 3R | 5.5 | 2.8 ± 0.4 | 5 | 0.0033 |
| 3R | 6.5 | –3.2 ± 0.8 | 4 | NS | ||||||
| 3R | 7.4 | –10.4 ± 0.6 | 3 | 0.003 | ||||||
| 3R | 9 | –16.6 ± 0.0 | 4 | <0.0001 | ||||||
| 3R | 10 | –22.8 ± 0.7 | 4 | <0.0001 | ||||||
| WT | 10 | –3.8 ± 0.4 | 4 | 0.0031 | ||||||
| M | 7.4 | –6.7 ± 1.0 | 5 | 0.0028 | ||||||
| Wu109 | DHAA | p3 | -SO3H | 4.60 | –0.51 | 3R | 7.4 | –30.7 ± 0.6 | 5 | <0.0001 |
| Wu161 | DHAA | p3 | -SO3H | 5.33 | –1.18 | 3R | 5.5 | –28.1 ± 1.6 | 4 | 0.0004 |
| 3R | 6.5 | –27.5 ± 1.6 | 4 | 0.0004 | ||||||
| 3R | 7.5 | –33.4 ± 2.8 | 6 | <0.0001 | ||||||
| 3R | 9 | –25.6 ± 2.8 | 6 | 0.0003 | ||||||
| 3R | 10 | –26.4 ± 1.8 | 4 | 0.0006 | ||||||
| WT | 7.4 | –10.0 ± 1.1 | 3 | 0.011 | ||||||
| M | 7.4 | –23.7 ± 1.3 | 4 | 0.0004 | ||||||
| Wu181* | Wu50 | p3 | -SO3H | 5.90 | –2.04 | 3R | 7.4 | –31.9 ± 3.7 | 4 | 0.0004 |
| M | 7.4 | –18.9 ± 2.4 | 4 | 0.0043 | ||||||
| Wu162 | DHAA | p3 | -PO3H2 | 5.15 | 1.87/6.89 | 3R | 5.5 | –18.6 ± 1.3 | 5 | 0.0001 |
| 3R | 6.5 | –10.0 ± 1.4 | 4 | 0.0055 | ||||||
| 3R | 7.4 | –11.8 ± 1.5 | 5 | 0.0013 | ||||||
| 3R | 9 | –11.5 ± 0.2 | 4 | <0.0001 | ||||||
| 3R | 10 | –8.9 ± 0.6 | 3 | 0,0052 | ||||||
| WT | 7.4 | –1.2 ± 0.4 | 4 | NS | ||||||
| Wu176 | DHAA | p3 | -COOH | 6.12 | 5.01 | 3R | 5.5 | 2.8 ± 0.5 | 3 | 0.0328 |
| p1 = p2 | 3R | 7.4 | –15.2 ± 1.3 | 7 | <0.0001 | |||||
| 3R | 10 | –17.1 ± 0.4 | 4 | <0.0001 | ||||||
| Wu117 | DHAA | p4 | -COOH | 4.64 | 4.15 | 3R | 7.4 | –7.3 ± 0.4 | 6 | <0.0001 |
| 3R | 10 | –5.3 ± 0.5 | 3 | 0.0247 | ||||||
| WT | 10 | –0.8 ± 0.5 | 4 | NS | ||||||
| Wu158 | DHAA | p4 | -PO3H2 | 4.11 | 1.57/8.08 | 3R | 7.4 | –4.9 ± 0.9 | 5 | 0.006 |
| Wu152 | DHAA | p5 | -COOH | 4.88 | 4.59 | 3R | 5.5 | 3.1 ± 0.9 | 4 | 0.0398 |
| 3R | 7.4 | –6.2 ± 1.3 | 5 | 0.0087 | ||||||
| 3R | 9 | –4.9 ± 0.3 | 4 | 0.0004 | ||||||
| 3R | 10 | –5.2 ± 0.8 | 3 | 0.0247 | ||||||
| WT | 10 | –1.2 ± 0.3 | 3 | 0.0464 | ||||||
| Wu154 | DHAA | p5 | -SO3H | 4.19 | –0.68 | 3R | 7.4 | –9.8 ± 1.3 | 4 | 0.0053 |
| WT | 7.4 | –2.5 ± 0.2 | 5 | 0.0002 | ||||||
| M | 7.4 | –4.6 ± 0.4 | 4 | 0.0017 | ||||||
| Wu149 | DHAA | p6 | -COOH | 5.17 | 4.32 | 3R | 7.4 | –4.8 ± 0.8 | 6 | 0.0018 |
| 3R | 10 | –5.2 ± 0.5 | 3 | 0.0111 | ||||||
| WT | 10 | –0.6 ± 0.9 | 7 | NS | ||||||
| Wu150 | DHAA | p6 | -SO3H | 4.25 | –0.87 | 3R | 7.4 | –10.0 ± 0.6 | 4 | 0.0005 |
| WT | 7.4 | –4.2 ± 0.4 | 4 | 0.0024 | ||||||
| Wu157 | AA | p6 | -COOH | 4.32 | 4.37 | 3R | 7.4 | –7.1 ± 0.5 | 5 | 0.0002 |
| Wu153 | DHAA | p9 | -COOH | 4.01 | 4.06 | 3R | 7.4 | –2.5 ± 1.4 | 5 | NS |
| Wu151 | DHAA | p11 | -COOH | 4.59 | 4.48 | 3R | 7.4 | –2.5 ± 0.4 | 4 | 0.0093 |
| Wu148 | DHAA | p4 and p5 | -COOH ×2 | 6.24 | 3.88/5.71 | 3R | 5.5 | –13.3 ± 2.0 | 3 | 0.022 |
| 3R | 6.5 | –14.2 ± 0.5 | 3 | 0.0011 | ||||||
| 3R | 7.4 | –14.5 ± 1.0 | 6 | <0.0001 | ||||||
| 3R | 9 | –11.2 ± 0.9 | 4 | 0.0011 | ||||||
| 3R | 10 | –9.5 ± 0.3 | 3 | 0.0013 | ||||||
| WT | 7.4 | –0.7 ± 0.1 | 3 | 0.0142 |
| Name . | Anchor . | Position of charge . | Charged group . | LogP . | pKa . | Channel . | pH . | ΔV ± SEM . | n . | P . |
|---|---|---|---|---|---|---|---|---|---|---|
| mV | ||||||||||
| Wu110 | DHAA | None | None | 4.48 | — | 3R | 7.4 | 0.6 ± 0.3 | 4 | NS |
| M | 7.4 | –1.5 ± 0.4 | 3 | NS | ||||||
| Wu111 | DHAA | None | None | 4.99 | — | 3R | 7.4 | 1.8 ± 1.2 | 3 | NS |
| DHAA | DHAA | p1 | -COOH | 5.57 | 4.55 | 3R | 7.4 | –13.6 ± 0.8 | 11 | <0.0001 |
| 3R | 10 | –24.7 ± 1.3 | 9 | <0.0001 | ||||||
| WT | 10 | –1.6 ± 0.3 | 7 | 0.0019 | ||||||
| M | 10 | –11.6 ± 1.0 | 3 | 0.0069 | ||||||
| AA | AA | p1 | -COOH | 4.95 | 4.59 | 3R | 7.4 | –16.0 ± 0.9 | 4 | 0.0004 |
| Wu180 | DHAA | p2 | -COOH | 5.68 | 4.79 | 3R | 5.5 | 1.6 ± 0.5 | 4 | 0.0431 |
| 3R | 7.4 | –11.0 ± 1.4 | 5 | 0.0013 | ||||||
| 3R | 10 | –19.2 ± 2.7 | 5 | 0.0022 | ||||||
| WT | 10 | –2.4 ± 0.4 | 4 | 0.0078 | ||||||
| Wu164 | DHAA | p2 | -SO3H | 4.27 | –0.62 | 3R | 7.4 | –18.0 ± 0.6 | 4 | <0.0001 |
| WT | 7.4 | –4.1 ± 0.6 | 4 | 0.0061 | ||||||
| M | 7.4 | –6.6 ± 1.2 | 6 | 0.0033 | ||||||
| Wu179 | DHAA | p3 | -COOH | 6.13 | 4.91 | 3R | 5.5 | 2.8 ± 0.4 | 5 | 0.0033 |
| 3R | 6.5 | –3.2 ± 0.8 | 4 | NS | ||||||
| 3R | 7.4 | –10.4 ± 0.6 | 3 | 0.003 | ||||||
| 3R | 9 | –16.6 ± 0.0 | 4 | <0.0001 | ||||||
| 3R | 10 | –22.8 ± 0.7 | 4 | <0.0001 | ||||||
| WT | 10 | –3.8 ± 0.4 | 4 | 0.0031 | ||||||
| M | 7.4 | –6.7 ± 1.0 | 5 | 0.0028 | ||||||
| Wu109 | DHAA | p3 | -SO3H | 4.60 | –0.51 | 3R | 7.4 | –30.7 ± 0.6 | 5 | <0.0001 |
| Wu161 | DHAA | p3 | -SO3H | 5.33 | –1.18 | 3R | 5.5 | –28.1 ± 1.6 | 4 | 0.0004 |
| 3R | 6.5 | –27.5 ± 1.6 | 4 | 0.0004 | ||||||
| 3R | 7.5 | –33.4 ± 2.8 | 6 | <0.0001 | ||||||
| 3R | 9 | –25.6 ± 2.8 | 6 | 0.0003 | ||||||
| 3R | 10 | –26.4 ± 1.8 | 4 | 0.0006 | ||||||
| WT | 7.4 | –10.0 ± 1.1 | 3 | 0.011 | ||||||
| M | 7.4 | –23.7 ± 1.3 | 4 | 0.0004 | ||||||
| Wu181* | Wu50 | p3 | -SO3H | 5.90 | –2.04 | 3R | 7.4 | –31.9 ± 3.7 | 4 | 0.0004 |
| M | 7.4 | –18.9 ± 2.4 | 4 | 0.0043 | ||||||
| Wu162 | DHAA | p3 | -PO3H2 | 5.15 | 1.87/6.89 | 3R | 5.5 | –18.6 ± 1.3 | 5 | 0.0001 |
| 3R | 6.5 | –10.0 ± 1.4 | 4 | 0.0055 | ||||||
| 3R | 7.4 | –11.8 ± 1.5 | 5 | 0.0013 | ||||||
| 3R | 9 | –11.5 ± 0.2 | 4 | <0.0001 | ||||||
| 3R | 10 | –8.9 ± 0.6 | 3 | 0,0052 | ||||||
| WT | 7.4 | –1.2 ± 0.4 | 4 | NS | ||||||
| Wu176 | DHAA | p3 | -COOH | 6.12 | 5.01 | 3R | 5.5 | 2.8 ± 0.5 | 3 | 0.0328 |
| p1 = p2 | 3R | 7.4 | –15.2 ± 1.3 | 7 | <0.0001 | |||||
| 3R | 10 | –17.1 ± 0.4 | 4 | <0.0001 | ||||||
| Wu117 | DHAA | p4 | -COOH | 4.64 | 4.15 | 3R | 7.4 | –7.3 ± 0.4 | 6 | <0.0001 |
| 3R | 10 | –5.3 ± 0.5 | 3 | 0.0247 | ||||||
| WT | 10 | –0.8 ± 0.5 | 4 | NS | ||||||
| Wu158 | DHAA | p4 | -PO3H2 | 4.11 | 1.57/8.08 | 3R | 7.4 | –4.9 ± 0.9 | 5 | 0.006 |
| Wu152 | DHAA | p5 | -COOH | 4.88 | 4.59 | 3R | 5.5 | 3.1 ± 0.9 | 4 | 0.0398 |
| 3R | 7.4 | –6.2 ± 1.3 | 5 | 0.0087 | ||||||
| 3R | 9 | –4.9 ± 0.3 | 4 | 0.0004 | ||||||
| 3R | 10 | –5.2 ± 0.8 | 3 | 0.0247 | ||||||
| WT | 10 | –1.2 ± 0.3 | 3 | 0.0464 | ||||||
| Wu154 | DHAA | p5 | -SO3H | 4.19 | –0.68 | 3R | 7.4 | –9.8 ± 1.3 | 4 | 0.0053 |
| WT | 7.4 | –2.5 ± 0.2 | 5 | 0.0002 | ||||||
| M | 7.4 | –4.6 ± 0.4 | 4 | 0.0017 | ||||||
| Wu149 | DHAA | p6 | -COOH | 5.17 | 4.32 | 3R | 7.4 | –4.8 ± 0.8 | 6 | 0.0018 |
| 3R | 10 | –5.2 ± 0.5 | 3 | 0.0111 | ||||||
| WT | 10 | –0.6 ± 0.9 | 7 | NS | ||||||
| Wu150 | DHAA | p6 | -SO3H | 4.25 | –0.87 | 3R | 7.4 | –10.0 ± 0.6 | 4 | 0.0005 |
| WT | 7.4 | –4.2 ± 0.4 | 4 | 0.0024 | ||||||
| Wu157 | AA | p6 | -COOH | 4.32 | 4.37 | 3R | 7.4 | –7.1 ± 0.5 | 5 | 0.0002 |
| Wu153 | DHAA | p9 | -COOH | 4.01 | 4.06 | 3R | 7.4 | –2.5 ± 1.4 | 5 | NS |
| Wu151 | DHAA | p11 | -COOH | 4.59 | 4.48 | 3R | 7.4 | –2.5 ± 0.4 | 4 | 0.0093 |
| Wu148 | DHAA | p4 and p5 | -COOH ×2 | 6.24 | 3.88/5.71 | 3R | 5.5 | –13.3 ± 2.0 | 3 | 0.022 |
| 3R | 6.5 | –14.2 ± 0.5 | 3 | 0.0011 | ||||||
| 3R | 7.4 | –14.5 ± 1.0 | 6 | <0.0001 | ||||||
| 3R | 9 | –11.2 ± 0.9 | 4 | 0.0011 | ||||||
| 3R | 10 | –9.5 ± 0.3 | 3 | 0.0013 | ||||||
| WT | 7.4 | –0.7 ± 0.1 | 3 | 0.0142 |
The concentration of the compounds is 100 µM if not stated otherwise. Name, name of compound; anchor, three-ring structure derived from DHAA, AA, or Wu50; position of charge, position of charged group as described in Fig. 2 B; charged group, carboxyl group -COOH, sulfonic acid group -S(=O2)OH, or phosphorous acid group (-P(=O)(-OH)2); log P, calculated value for the logarithm of the partition coefficient (see Materials and methods); pKa, calculated value for the logarithmic acid dissociation constant (see Materials and methods); channel, WT denotes the WT Shaker KV channel, 3R denotes the 3R Shaker KV channel, and M denotes the hKV7.2/7.3 channel (=M channel); pH, pH used; ΔV ± SEM, mean G(V) shift and SEM; n, number of cells; P, p-value. *, compound Wu181 was applied at 10 µM.