Table 1

Classification of aquaporin sequences from phylogenetic analyses

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

*Glycerol permeability has been demonstrated for individual members of the subgroup. NK, not known.

Kruse et al. Genome Biology 2006 7:206   doi:10.1186/gb-2006-7-2-206