Synergistic roles of aquaporin 5 and intra- and extracellular carbonic anhydrases in promoting CO2 diffusion across the Xenopus oocyte plasma membrane.

CO2 diffusion across plasma membranes depends on both membrane CO2 permeability ( P M , C O 2 ${P_{{\mathrm{M,C}}{{\mathrm{O}}_{\mathrm{2}}}}}$ ) and the transmembrane CO2 concentration gradient (Δ[CO2]) - Fick's law. Human aquaporin-5 (hAQP5) en…

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