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User:Daniel Parrell/Sandbox 1
From Proteopedia
Aquaporin 4
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The discovery of aquaporin channels was a brakthrough discovery relating to water transport in cells. Peter Agre's discovery of the aquaporin channel family, has answered a key question that had stumped biochmesists and cell biologists for years. This was, how is water abe to transport across the hydrophobic lipid bilayer so efficiently? When experimentally determined, the rate of water transport is able to occure at a rate of about 10^9 molecules per second, this is many times the limit set by diffusion across the membrane.
