| ATP-permeant channel | Oligomeric configuration | Pore constriction diameter (Å) | Reference |
|---|---|---|---|
| VDAC | Monomer (β barrel) | 25 | Colombini, 2012 |
| Cx26 | Hexamer | 14 (open), 6 (closed) | Maeda et al., 2009; Nielsen et al., 2012 |
| Cx31.3 | Hexamer | 8 (closed?) | Lee et al., 2020 |
| Cx43 | Hexamer | 25 (open), 18 (closed) | Nielsen et al., 2012 |
| Cx46 | Hexamer | 14 | Myers et al., 2018; Flores et al., 2020 |
| VRAC | Hexamer | 12–14 (open), 2–5 (closed) | Deneka et al., 2018; Kasuya et al., 2018; Kefauver et al., 2018; Osei-Owusu et al., 2018 |
| Panx1 | Heptamer | 9 | Deng et al., 2020; Jin et al., 2020; Michalski et al., 2020; Mou et al., 2020; Qu et al., 2020; Ruan et al., 2020 |
| Innexin6 | Octamer | 18 | Oshima et al., 2016 |
| CALHM1 | Octamer | 19.5 | Syrjanen et al., 2020 |
| CALHM2 | Undecamer | 50 (open), 23 (inhibited) | Choi et al., 2019 |
| CALHM4 | Decamer, undecamer | 20 (without current), 30 (without current) | Drożdżyk et al., 2020 |
| ATP-permeant channel | Oligomeric configuration | Pore constriction diameter (Å) | Reference |
|---|---|---|---|
| VDAC | Monomer (β barrel) | 25 | |
| Cx26 | Hexamer | 14 (open), 6 (closed) | |
| Cx31.3 | Hexamer | 8 (closed?) | |
| Cx43 | Hexamer | 25 (open), 18 (closed) | |
| Cx46 | Hexamer | 14 | |
| VRAC | Hexamer | 12–14 (open), 2–5 (closed) | |
| Panx1 | Heptamer | 9 | |
| Innexin6 | Octamer | 18 | |
| CALHM1 | Octamer | 19.5 | |
| CALHM2 | Undecamer | 50 (open), 23 (inhibited) | |
| CALHM4 | Decamer, undecamer | 20 (without current), 30 (without current) |
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