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Table 1 Classification of aquaporin sequences from phylogenetic analyses

From: The aquaporins

Name Organism Glycerol permeability
AQP subfamily (classical aquaporins)   
   AQP0 Mammals No
   AQP1 Mammals No
   AQP2 Mammals No
   AQP4 Mammals No
   AQP5 Mammals No
   AQP6 Mammals No
   AQP8 Mammals No
   AQPZ E. coli No
   AQY1 Yeast No
   AQY2 Yeast No
   Plasma-membrane intrinsic proteins (PIPs) Plants *
   Tonoplast intrinsic proteins (TIPs) Plants *
   Nodulin-like intrinsic proteins (NIPs or NLMs) Plants *
   Small basic intrinsic proteins (SIPs) Plants NK
GLP subfamily   
   AQP3 Mammals Yes
   AQP7 Mammals Yes
   AQP9 Mammals Yes
   AQP10 Mammals Yes
   GlpF E. coli Yes
   GLPY1 Yeast Yes
   GLPY2 Yeast Yes
  1. *Glycerol permeability has been demonstrated for individual members of the subgroup. NK, not known.