Determining molecular forces that stabilize human aquaporin-1.


Atomic force microscopy (AFM) was used to measure the forces stabilizing human aquaporin-1 (hAQP1), a tetrameric transmembrane protein that forms highly specific water channels. To this end, the AFM tip was attached to the C-terminus of hAQP1 and secondary structure elements were extracted from the membrane while the single-molecule force-extension curve… (More)


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