SMTL ID : 2ih3.1

Ion selectivity in a semi-synthetic K+ channel locked in the conductive conformation

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.72 Å

Oligo State

hetero-4-4-4-mer

Ligands

28 x K: POTASSIUM ION(Non-covalent)(Non-functional Binders)

K.1: 19 residues within 4Å: Chain C: T.75, V.76 Chain F: T.75, V.76 Chain I: T.75, V.76 Chain L: T.75, V.76 Ligands: K.2, K.4, K.9, K.10, K.12, K.17, K.18, K.20, K.25, K.26, K.28 Ligand excluded by PLIP K.2: 19 residues within 4Å: Chain C: V.76, A.77 Chain F: V.76, A.77 Chain I: V.76, A.77 Chain L: V.76, A.77 Ligands: K.1, K.3, K.9, K.10, K.11, K.17, K.18, K.19, K.25, K.26, K.27 Ligand excluded by PLIP K.3: 15 residues within 4Å: Chain C: A.77, Y.78 Chain F: A.77, Y.78 Chain I: A.77, Y.78 Chain L: A.77, Y.78 Ligands: K.2, K.10, K.11, K.18, K.19, K.26, K.27 Ligand excluded by PLIP K.4: 11 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: K.1, K.9, K.12, K.17, K.20, K.25, K.28 Ligand excluded by PLIP K.5: 7 residues within 4Å: Chain C: F.103 Chain F: F.103 Chain I: F.103 Chain L: F.103 Ligands: K.13, K.21, K.29 Ligand excluded by PLIP K.6: 7 residues within 4Å: Ligands: K.7, K.14, K.15, K.22, K.23, K.30, K.31 Ligand excluded by PLIP K.7: 7 residues within 4Å: Ligands: K.6, K.14, K.15, K.22, K.23, K.30, K.31 Ligand excluded by PLIP K.9: 19 residues within 4Å: Chain C: T.75, V.76 Chain F: T.75, V.76 Chain I: T.75, V.76 Chain L: T.75, V.76 Ligands: K.1, K.2, K.4, K.10, K.12, K.17, K.18, K.20, K.25, K.26, K.28 Ligand excluded by PLIP K.10: 19 residues within 4Å: Chain C: V.76, A.77 Chain F: V.76, A.77 Chain I: V.76, A.77 Chain L: V.76, A.77 Ligands: K.1, K.2, K.3, K.9, K.11, K.17, K.18, K.19, K.25, K.26, K.27 Ligand excluded by PLIP K.11: 15 residues within 4Å: Chain C: A.77, Y.78 Chain F: A.77, Y.78 Chain I: A.77, Y.78 Chain L: A.77, Y.78 Ligands: K.2, K.3, K.10, K.18, K.19, K.26, K.27 Ligand excluded by PLIP K.12: 11 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: K.1, K.4, K.9, K.17, K.20, K.25, K.28 Ligand excluded by PLIP K.13: 7 residues within 4Å: Chain C: F.103 Chain F: F.103 Chain I: F.103 Chain L: F.103 Ligands: K.5, K.21, K.29 Ligand excluded by PLIP K.14: 7 residues within 4Å: Ligands: K.6, K.7, K.15, K.22, K.23, K.30, K.31 Ligand excluded by PLIP K.15: 7 residues within 4Å: Ligands: K.6, K.7, K.14, K.22, K.23, K.30, K.31 Ligand excluded by PLIP K.17: 19 residues within 4Å: Chain C: T.75, V.76 Chain F: T.75, V.76 Chain I: T.75, V.76 Chain L: T.75, V.76 Ligands: K.1, K.2, K.4, K.9, K.10, K.12, K.18, K.20, K.25, K.26, K.28 Ligand excluded by PLIP K.18: 19 residues within 4Å: Chain C: V.76, A.77 Chain F: V.76, A.77 Chain I: V.76, A.77 Chain L: V.76, A.77 Ligands: K.1, K.2, K.3, K.9, K.10, K.11, K.17, K.19, K.25, K.26, K.27 Ligand excluded by PLIP K.19: 15 residues within 4Å: Chain C: A.77, Y.78 Chain F: A.77, Y.78 Chain I: A.77, Y.78 Chain L: A.77, Y.78 Ligands: K.2, K.3, K.10, K.11, K.18, K.26, K.27 Ligand excluded by PLIP K.20: 11 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: K.1, K.4, K.9, K.12, K.17, K.25, K.28 Ligand excluded by PLIP K.21: 7 residues within 4Å: Chain C: F.103 Chain F: F.103 Chain I: F.103 Chain L: F.103 Ligands: K.5, K.13, K.29 Ligand excluded by PLIP K.22: 7 residues within 4Å: Ligands: K.6, K.7, K.14, K.15, K.23, K.30, K.31 Ligand excluded by PLIP K.23: 7 residues within 4Å: Ligands: K.6, K.7, K.14, K.15, K.22, K.30, K.31 Ligand excluded by PLIP K.25: 19 residues within 4Å: Chain C: T.75, V.76 Chain F: T.75, V.76 Chain I: T.75, V.76 Chain L: T.75, V.76 Ligands: K.1, K.2, K.4, K.9, K.10, K.12, K.17, K.18, K.20, K.26, K.28 Ligand excluded by PLIP K.26: 19 residues within 4Å: Chain C: V.76, A.77 Chain F: V.76, A.77 Chain I: V.76, A.77 Chain L: V.76, A.77 Ligands: K.1, K.2, K.3, K.9, K.10, K.11, K.17, K.18, K.19, K.25, K.27 Ligand excluded by PLIP K.27: 15 residues within 4Å: Chain C: A.77, Y.78 Chain F: A.77, Y.78 Chain I: A.77, Y.78 Chain L: A.77, Y.78 Ligands: K.2, K.3, K.10, K.11, K.18, K.19, K.26 Ligand excluded by PLIP K.28: 11 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: K.1, K.4, K.9, K.12, K.17, K.20, K.25 Ligand excluded by PLIP K.29: 7 residues within 4Å: Chain C: F.103 Chain F: F.103 Chain I: F.103 Chain L: F.103 Ligands: K.5, K.13, K.21 Ligand excluded by PLIP K.30: 7 residues within 4Å: Ligands: K.6, K.7, K.14, K.15, K.22, K.23, K.31 Ligand excluded by PLIP K.31: 7 residues within 4Å: Ligands: K.6, K.7, K.14, K.15, K.22, K.23, K.30 Ligand excluded by PLIP

4 x 1EM: (1S)-2-HYDROXY-1-[(NONANOYLOXY)METHYL]ETHYL MYRISTATE(Non-covalent)

1EM.8: 12 residues within 4Å: Chain C: V.84, T.85, L.86, R.89, L.90 Chain G: T.30, S.31 Chain H: E.53 Chain I: Y.62, P.63, W.67, C.70 10 PLIP interactions: 5 interactions with chain C, 1 interactions with chain G, 2 interactions with chain H, 2 interactions with chain I Hydrophobic interactions: C:L.86, C:L.86, C:L.90, G:T.30, I:P.63, I:W.67 Water bridges: C:R.89, H:Y.50 Salt bridges: C:R.89 Hydrogen bonds: H:E.53 1EM.16: 12 residues within 4Å: Chain F: V.84, T.85, L.86, R.89, L.90 Chain J: T.30, S.31 Chain K: E.53 Chain L: Y.62, P.63, W.67, C.70 10 PLIP interactions: 5 interactions with chain F, 1 interactions with chain J, 2 interactions with chain K, 2 interactions with chain L Hydrophobic interactions: F:L.86, F:L.86, F:L.90, J:T.30, L:P.63, L:W.67 Water bridges: F:R.89, K:Y.50 Salt bridges: F:R.89 Hydrogen bonds: K:E.53 1EM.24: 12 residues within 4Å: Chain D: T.30, S.31 Chain E: E.53 Chain F: Y.62, P.63, W.67, C.70 Chain I: V.84, T.85, L.86, R.89, L.90 10 PLIP interactions: 5 interactions with chain I, 2 interactions with chain E, 2 interactions with chain F, 1 interactions with chain D Hydrophobic interactions: I:L.86, I:L.86, I:L.90, F:P.63, F:W.67, D:T.30 Water bridges: I:R.89, E:Y.50 Salt bridges: I:R.89 Hydrogen bonds: E:E.53 1EM.32: 12 residues within 4Å: Chain A: T.30, S.31 Chain B: E.53 Chain C: Y.62, P.63, W.67, C.70 Chain L: V.84, T.85, L.86, R.89, L.90 10 PLIP interactions: 1 interactions with chain A, 2 interactions with chain C, 5 interactions with chain L, 2 interactions with chain B Hydrophobic interactions: A:T.30, C:P.63, C:W.67, L:L.86, L:L.86, L:L.90 Water bridges: L:R.89, B:Y.50 Salt bridges: L:R.89 Hydrogen bonds: B:E.53

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Valiyaveetil, F.I. et al., Ion Selectivity in a Semisynthetic K+ Channel Locked in the Conductive Conformation. Science (2006)

Release Date

2006-11-21

Peptides

FAB Heavy Chain: ADGJ
FAB Light Chain: BEHK
Voltage-gated potassium channel: CFIL

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

D
A

G
A

J
A

B
B

E
B

H
B

K
B

C
C

F
C

I
C

L
C

Membrane

We predict this structure to be a membrane protein.
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FAB Heavy Chain

FAB Light Chain

Voltage-gated potassium channel

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