SMTL ID : 3e8g.2 (1 other biounit)

Crystal Structure of the the open NaK channel-Na+/Ca2+ complex

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.00 Å

Oligo State

homo-tetramer

Ligands

4 x MPD: (4S)-2-METHYL-2,4-PENTANEDIOL(Non-functional Binders)

MPD.1: 4 residues within 4Å: Chain A: S.19, F.61, L.64, I.68 3 PLIP interactions: 3 interactions with chain A Hydrophobic interactions: A:L.64, A:I.68 Hydrogen bonds: A:S.19 MPD.6: 4 residues within 4Å: Chain B: S.19, F.61, L.64, I.68 3 PLIP interactions: 3 interactions with chain B Hydrophobic interactions: B:L.64, B:I.68 Hydrogen bonds: B:S.19 MPD.11: 4 residues within 4Å: Chain C: S.19, F.61, L.64, I.68 3 PLIP interactions: 3 interactions with chain C Hydrophobic interactions: C:L.64, C:I.68 Hydrogen bonds: C:S.19 MPD.16: 4 residues within 4Å: Chain D: S.19, F.61, L.64, I.68 3 PLIP interactions: 3 interactions with chain D Hydrophobic interactions: D:L.64, D:I.68 Hydrogen bonds: D:S.19

4 x CS: CESIUM ION(Non-covalent)

CS.2: 15 residues within 4Å: Chain A: T.45, V.46 Chain B: T.45, V.46 Chain C: T.45, V.46 Chain D: T.45, V.46 Ligands: NA.5, CS.7, NA.10, CS.12, NA.15, CS.17, NA.20 5 PLIP interactions: 1 interactions with chain B, 2 interactions with chain C, 1 interactions with chain A, 1 interactions with chain D Metal complexes: B:V.46, C:T.45, C:V.46, A:V.46, D:V.46 CS.7: 15 residues within 4Å: Chain A: T.45, V.46 Chain B: T.45, V.46 Chain C: T.45, V.46 Chain D: T.45, V.46 Ligands: CS.2, NA.5, NA.10, CS.12, NA.15, CS.17, NA.20 5 PLIP interactions: 1 interactions with chain B, 2 interactions with chain C, 1 interactions with chain A, 1 interactions with chain D Metal complexes: B:V.46, C:T.45, C:V.46, A:V.46, D:V.46 CS.12: 15 residues within 4Å: Chain A: T.45, V.46 Chain B: T.45, V.46 Chain C: T.45, V.46 Chain D: T.45, V.46 Ligands: CS.2, NA.5, CS.7, NA.10, NA.15, CS.17, NA.20 5 PLIP interactions: 1 interactions with chain B, 2 interactions with chain C, 1 interactions with chain A, 1 interactions with chain D Metal complexes: B:V.46, C:T.45, C:V.46, A:V.46, D:V.46 CS.17: 15 residues within 4Å: Chain A: T.45, V.46 Chain B: T.45, V.46 Chain C: T.45, V.46 Chain D: T.45, V.46 Ligands: CS.2, NA.5, CS.7, NA.10, CS.12, NA.15, NA.20 5 PLIP interactions: 2 interactions with chain C, 1 interactions with chain A, 1 interactions with chain D, 1 interactions with chain B Metal complexes: C:T.45, C:V.46, A:V.46, D:V.46, B:V.46

4 x CA: CALCIUM ION(Non-covalent)

CA.3: 7 residues within 4Å: Chain A: G.49 Chain B: G.49 Chain C: G.49 Chain D: G.49 Ligands: CA.8, CA.13, CA.18 4 PLIP interactions: 1 interactions with chain C, 1 interactions with chain A, 1 interactions with chain D, 1 interactions with chain B Metal complexes: C:G.49, A:G.49, D:G.49, B:G.49 CA.8: 7 residues within 4Å: Chain A: G.49 Chain B: G.49 Chain C: G.49 Chain D: G.49 Ligands: CA.3, CA.13, CA.18 4 PLIP interactions: 1 interactions with chain C, 1 interactions with chain A, 1 interactions with chain D, 1 interactions with chain B Metal complexes: C:G.49, A:G.49, D:G.49, B:G.49 CA.13: 7 residues within 4Å: Chain A: G.49 Chain B: G.49 Chain C: G.49 Chain D: G.49 Ligands: CA.3, CA.8, CA.18 4 PLIP interactions: 1 interactions with chain C, 1 interactions with chain A, 1 interactions with chain D, 1 interactions with chain B Metal complexes: C:G.49, A:G.49, D:G.49, B:G.49 CA.18: 7 residues within 4Å: Chain A: G.49 Chain B: G.49 Chain C: G.49 Chain D: G.49 Ligands: CA.3, CA.8, CA.13 4 PLIP interactions: 1 interactions with chain B, 1 interactions with chain A, 1 interactions with chain C, 1 interactions with chain D Metal complexes: B:G.49, A:G.49, C:G.49, D:G.49

8 x NA: SODIUM ION(Non-functional Binders)

NA.4: 7 residues within 4Å: Chain A: T.45 Chain B: T.45 Chain C: T.45 Chain D: T.45 Ligands: NA.9, NA.14, NA.19 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:T.45 NA.5: 11 residues within 4Å: Chain A: V.46 Chain B: V.46 Chain C: V.46 Chain D: V.46 Ligands: CS.2, CS.7, NA.10, CS.12, NA.15, CS.17, NA.20 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:V.46 NA.9: 7 residues within 4Å: Chain A: T.45 Chain B: T.45 Chain C: T.45 Chain D: T.45 Ligands: NA.4, NA.14, NA.19 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:T.45 NA.10: 11 residues within 4Å: Chain A: V.46 Chain B: V.46 Chain C: V.46 Chain D: V.46 Ligands: CS.2, NA.5, CS.7, CS.12, NA.15, CS.17, NA.20 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:V.46 NA.14: 7 residues within 4Å: Chain A: T.45 Chain B: T.45 Chain C: T.45 Chain D: T.45 Ligands: NA.4, NA.9, NA.19 1 PLIP interactions: 1 interactions with chain C Hydrogen bonds: C:T.45 NA.15: 11 residues within 4Å: Chain A: V.46 Chain B: V.46 Chain C: V.46 Chain D: V.46 Ligands: CS.2, NA.5, CS.7, NA.10, CS.12, CS.17, NA.20 1 PLIP interactions: 1 interactions with chain D Hydrogen bonds: D:V.46 NA.19: 7 residues within 4Å: Chain A: T.45 Chain B: T.45 Chain C: T.45 Chain D: T.45 Ligands: NA.4, NA.9, NA.14 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:T.45 NA.20: 11 residues within 4Å: Chain A: V.46 Chain B: V.46 Chain C: V.46 Chain D: V.46 Ligands: CS.2, NA.5, CS.7, NA.10, CS.12, NA.15, CS.17 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:V.46

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Alam, A. et al., Structural analysis of ion selectivity in the NaK channel. Nat.Struct.Mol.Biol. (2009)

Release Date

2008-12-23

Peptides

Potassium channel protein: ABCD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

B
B

C
B

D
B

Membrane

We predict this structure to be a membrane protein.
Show / Hide

Potassium channel protein

Related Entries With Identical Sequence