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Fig. 5 | BMC Structural Biology

Fig. 5

From: A structural preview of aquaporin 8 via homology modeling of seven vertebrate isoforms

Fig. 5

Comparison of pore radii along the axis of the pore. Similar to AtTIP2;1 (red), most of the models have a rather uniform radius throughout the pore. The radii of the AQP8 models are particularly homogeneous at the selectivity filter (around 7 Å on the z axis) where they deviate from water specific AQPs like EcAqpZ (black) which have their most narrow region here. Interestingly the salmon AQP8 (SsAQP8b; blue) is wider at the lower NPA region (around − 2 Å on the z axis)

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