Deep Cholesterol Binding Sites on Mammalian Membrane Proteins


Porins Etc.

[Subunits identified as in the PDB file, followed by the TM helix number; Units of E, kcals/mol with molar concentration units].

E Donor Acceptor Local Residues (within 3 Å of a cholesterol –OH group)
Aquaporins
AQPO aquaporin lens, cow, 1ymg
None
AQPO  aquaporin lens, sheep, 1sor
None
AQPO  aquaporinn lens, sheep, 2b6o
None
AQPO  aquaporin lens, sheep, 2b6p
None
AQPO  aquaporin lens, sheep, 3m9i
None
AQP1 aquaporin red blood cell, human,  4csk
None
AQP1 aquaporin red blood cell, cow, 1j4n
None
AQP2 aquaporin, kidney, human, 4nef
None
AQP4 aquaporin glial cell, rat, 2d57
-5.8 Chl OH Thr120 [A3] OG1 Thr120 [A3]
AQP4 aquaporin glial cell, mutant, rat, 2zz9
-5.7 Chl OH Thr120 [A3] OG1 Thr120 [A3]
AQP4 aquaporin, human, 3gd8
None
AQP5 aquaporin, human, 3d9s
None
SoPIP2 plant aquaporin,  spinach, mutant, 3cll
None
SoPIP2 plant aquaporin,  spinach, mutant, 3cn5
None
SoPIP2 plant aquaporin,  spinach, mutant, 3cn6
None
TIP2, ammonia-permeable aquaporin, Arabidopsis, 5i32
None
Urea Transporters
UT-B, cow, 4ezc
-7.6 Chl OH Ala147 [A3] O Ala147 [A3] Thr151 [A3]
Chl OH Thr151 [A3] OG1
Thr151 [A3] OG1 Chl OH
UT-B  bound to selenourea, cow, 4ezd
-7.0 Chl OH Thr151 [A3] OG1 Ala147 [A3] Thr151 [A3]
 Rh ammonia channel
Rh C glycoprotein ammonia transporter, human, 3hd6
None