SMTL ID : 2abm.7 (7 other biounits)

Crystal Structure of Aquaporin Z Tetramer Reveals both Open and Closed Water-conducting Channels

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 3.20 Å

Oligo State

homo-octamer

Ligands

4 x BGL: 2-O-octyl-beta-D-glucopyranose(Non-covalent)

BGL.1: 6 residues within 4Å: Chain A: Y.100, D.110, A.111, A.112, F.196, Q.197 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:A.112, A:F.196 Water bridges: A:D.110, A:A.111 BGL.4: 3 residues within 4Å: Chain B: M.131, W.206 Ligands: PEE.8 3 PLIP interactions: 3 interactions with chain B Hydrophobic interactions: B:W.206 Water bridges: B:Y.121, B:Y.121 BGL.5: 2 residues within 4Å: Chain B: A.72, I.217 No protein-ligand interaction detected (PLIP) BGL.12: 6 residues within 4Å: Chain E: Y.100, D.110, A.111, A.112, F.196, Q.197 7 PLIP interactions: 7 interactions with chain E Hydrophobic interactions: E:Y.100, E:F.196 Hydrogen bonds: E:Y.100, E:A.111, E:A.112 Water bridges: E:Y.100, E:D.110

1 x POQ: BIS(((3S,4S,5R,6R)-5-(ETHYL(PHOSPHORYLOXY))-3,4,6-TRIHYDROXY-TETRAHYDRO-2H-PYRAN-2-YL)METHYL) HYDROGEN PHOSPHATE(Non-covalent)

POQ.2: 4 residues within 4Å: Chain A: F.10, F.13, L.98, L.101 2 PLIP interactions: 2 interactions with chain A Hydrophobic interactions: A:F.10, A:L.101

7 x PEE: 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine(Non-covalent)

PEE.3: 6 residues within 4Å: Chain A: G.144, L.147, I.222 Chain C: F.10, F.13, W.14 5 PLIP interactions: 2 interactions with chain A, 3 interactions with chain C Hydrophobic interactions: A:L.147, A:I.222, C:F.10, C:F.13, C:W.14 PEE.7: 2 residues within 4Å: Chain B: A.37, G.38 No protein-ligand interaction detected (PLIP) PEE.8: 2 residues within 4Å: Chain B: W.206 Ligands: BGL.4 3 PLIP interactions: 3 interactions with chain B Hydrophobic interactions: B:W.206, B:W.206, B:W.206 PEE.13: 1 residues within 4Å: Chain E: I.195 1 PLIP interactions: 1 interactions with chain E Hydrophobic interactions: E:I.195 PEE.15: 2 residues within 4Å: Chain F: A.37, G.38 No protein-ligand interaction detected (PLIP) PEE.16: 1 residues within 4Å: Chain F: W.206 3 PLIP interactions: 3 interactions with chain F Hydrophobic interactions: F:W.206, F:W.206, F:W.206 PEE.18: 3 residues within 4Å: Chain E: I.222 Chain G: F.10, F.13 2 PLIP interactions: 1 interactions with chain E, 1 interactions with chain G Hydrophobic interactions: E:I.222, G:F.13

4 x PO4: PHOSPHATE ION(Non-functional Binders)

PO4.6: 4 residues within 4Å: Chain B: Q.197, G.199, W.200, E.203 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:Q.197, B:W.200, B:W.200 PO4.9: 1 residues within 4Å: Chain C: D.110 1 PLIP interactions: 1 interactions with chain C Water bridges: C:A.112 PO4.14: 4 residues within 4Å: Chain F: Q.197, G.199, W.200, E.203 4 PLIP interactions: 4 interactions with chain F Hydrogen bonds: F:Q.197, F:W.200, F:W.200, F:E.203 PO4.17: 1 residues within 4Å: Chain G: D.110 No protein-ligand interaction detected (PLIP)

2 x 3PG: 3-PHOSPHOGLYCERIC ACID(Non-covalent)

3PG.10: 2 residues within 4Å: Chain C: L.205 Ligands: AGA.11 1 PLIP interactions: 1 interactions with chain C Water bridges: C:L.202 3PG.19: 1 residues within 4Å: Chain G: L.205 2 PLIP interactions: 2 interactions with chain G Water bridges: G:L.202, G:W.206

2 x AGA: (1S)-2-{[{[(2S)-2,3-DIHYDROXYPROPYL]OXY}(HYDROXY)PHOSPHORYL]OXY}-1-[(PENTANOYLOXY)METHYL]ETHYL OCTANOATE(Non-covalent)

AGA.11: 2 residues within 4Å: Chain C: W.209 Ligands: 3PG.10 No protein-ligand interaction detected (PLIP) AGA.20: 3 residues within 4Å: Chain G: V.85, I.86, W.209 1 PLIP interactions: 1 interactions with chain G Hydrophobic interactions: G:I.86

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Jiang, J. et al., Crystal Structure of AqpZ Tetramer Reveals Two Distinct Arg-189 Conformations Associated with Water Permeation through the Narrowest Constriction of the Water-conducting Channel. J.Biol.Chem. (2006)

Release Date

2005-09-20

Peptides

Aquaporin Z: ABCDEFGH

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
C

D
D

E
E

F
F

G
G

H
H

Membrane

We predict this structure to be a membrane protein.
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Aquaporin Z

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