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Table 6 Ar/R filters of 35 XIPs from different organism groups

From: Genome-wide analysis of major intrinsic proteins in the tree plant Populus trichocarpa: Characterization of XIP subfamily of aquaporins from evolutionary perspective

Groupa

XIP Members

H2

H5

LE1

LE2

 

Dicot Plants

    

I

PtXIP1;1, PtXIP1;2, PtXIP1;3

CcXIP1;1, CcXIP1;2, CcXIP1;3, CcXIP1;4

CsXIP1;1, CsXIP1;2

VvXIP1;1, VvXIP1;2

LsXIP1;1

SlXIP1;1

V/I

T

A

R

II

PtXIP1;5

GrXIP1;1

RcXIP1;1, RcXIP2;1, RcXIP2;2

AfXIP1;1

V/I

T/S

V

R

III

PtXIP2;1, RcXIP2;3

V/I

I

V

R

IV

PtXIP1;4

A

T

A

R

 

Moss

    

I

PpXIP1;1

Q

A

A

R

II

PpXIP1;2

Q

I

T

R

III

SmXIP1;1

Y

S

A

R

 

Protozoa

    

I

DdXIP

H

I

F

R

 

Fungi

    

I

F-FoXIP, F-GmXIP,

F-AtXIP, F-TaXIP,

F-TrXIP, F-TvXIP1,

F-PmXIP

N

A/S/G

A

R/K

II

F-TsXIP

N

S

L

R

III

F-TvXIP2

A

G

F

R

  1. aStructural subclasses for each organism group are defined based on the residues forming ar/R tetrad.