passages.id: split_6_test_1661_passage
passages.type: progene_text
passages.text: Analysis of Pf values and plasma membrane expression levels reveals that AQP2 - N68S , AQP2 - R187C and AQP2 - S216P are non - functional , AQP2 - A147T is as functional as wt - AQP2 , while AQP2 - T126M and AQP2 - G64R retain 20 % of the permeability of wt - AQP2 .