SMTL ID : 2ih1.1

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

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.40 Å

Oligo State

hetero-4-4-4-mer

Ligands

20 x K: POTASSIUM ION(Non-covalent)

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.3, K.4, K.7, K.9, K.10, K.13, K.15, K.16, K.19, K.21, K.22 Ligand excluded by PLIP K.2: 19 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.4, K.5, K.8, K.10, K.11, K.14, K.16, K.17, K.20, K.22, K.23 Ligand excluded by PLIP K.3: 11 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: K.1, K.7, K.9, K.13, K.15, K.19, K.21 Ligand excluded by PLIP K.4: 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.7, K.8, K.10, K.13, K.14, K.16, K.19, K.20, K.22 Ligand excluded by PLIP K.5: 11 residues within 4Å: Chain C: Y.78 Chain F: Y.78 Chain I: Y.78 Chain L: Y.78 Ligands: K.2, K.8, K.11, K.14, K.17, K.20, K.23 Ligand excluded by PLIP K.7: 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.3, K.4, K.9, K.10, K.13, K.15, K.16, K.19, K.21, K.22 Ligand excluded by PLIP K.8: 19 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.4, K.5, K.10, K.11, K.14, K.16, K.17, K.20, K.22, K.23 Ligand excluded by PLIP K.9: 11 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: K.1, K.3, K.7, K.13, K.15, K.19, K.21 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.4, K.7, K.8, K.13, K.14, K.16, K.19, K.20, K.22 Ligand excluded by PLIP K.11: 11 residues within 4Å: Chain C: Y.78 Chain F: Y.78 Chain I: Y.78 Chain L: Y.78 Ligands: K.2, K.5, K.8, K.14, K.17, K.20, K.23 Ligand excluded by PLIP K.13: 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.3, K.4, K.7, K.9, K.10, K.15, K.16, K.19, K.21, K.22 Ligand excluded by PLIP K.14: 19 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.4, K.5, K.8, K.10, K.11, K.16, K.17, K.20, K.22, K.23 Ligand excluded by PLIP K.15: 11 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: K.1, K.3, K.7, K.9, K.13, K.19, K.21 Ligand excluded by PLIP K.16: 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.4, K.7, K.8, K.10, K.13, K.14, K.19, K.20, K.22 Ligand excluded by PLIP K.17: 11 residues within 4Å: Chain C: Y.78 Chain F: Y.78 Chain I: Y.78 Chain L: Y.78 Ligands: K.2, K.5, K.8, K.11, K.14, K.20, K.23 Ligand excluded by PLIP K.19: 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.3, K.4, K.7, K.9, K.10, K.13, K.15, K.16, K.21, K.22 Ligand excluded by PLIP K.20: 19 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.4, K.5, K.8, K.10, K.11, K.14, K.16, K.17, K.22, K.23 Ligand excluded by PLIP K.21: 11 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: K.1, K.3, K.7, K.9, K.13, K.15, K.19 Ligand excluded by PLIP K.22: 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.4, K.7, K.8, K.10, K.13, K.14, K.16, K.19, K.20 Ligand excluded by PLIP K.23: 11 residues within 4Å: Chain C: Y.78 Chain F: Y.78 Chain I: Y.78 Chain L: Y.78 Ligands: K.2, K.5, K.8, K.11, K.14, K.17, K.20 Ligand excluded by PLIP

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

1EM.6: 13 residues within 4Å: Chain C: V.84, R.89, V.93 Chain G: S.31 Chain H: E.53 Chain I: S.44, Y.45, Y.62, P.63, R.64, L.66, W.67, C.70 10 PLIP interactions: 7 interactions with chain I, 3 interactions with chain C Hydrophobic interactions: I:Y.45, I:Y.45, I:Y.62, I:Y.62, I:P.63, I:P.63, I:W.67, C:R.89, C:V.93 Salt bridges: C:R.89 1EM.12: 13 residues within 4Å: Chain F: V.84, R.89, V.93 Chain J: S.31 Chain K: E.53 Chain L: S.44, Y.45, Y.62, P.63, R.64, L.66, W.67, C.70 10 PLIP interactions: 7 interactions with chain L, 3 interactions with chain F Hydrophobic interactions: L:Y.45, L:Y.45, L:Y.62, L:Y.62, L:P.63, L:P.63, L:W.67, F:R.89, F:V.93 Salt bridges: F:R.89 1EM.18: 13 residues within 4Å: Chain D: S.31 Chain E: E.53 Chain F: S.44, Y.45, Y.62, P.63, R.64, L.66, W.67, C.70 Chain I: V.84, R.89, V.93 10 PLIP interactions: 3 interactions with chain I, 7 interactions with chain F Hydrophobic interactions: I:R.89, I:V.93, F:Y.45, F:Y.45, F:Y.62, F:Y.62, F:P.63, F:P.63, F:W.67 Salt bridges: I:R.89 1EM.24: 13 residues within 4Å: Chain A: S.31 Chain B: E.53 Chain C: S.44, Y.45, Y.62, P.63, R.64, L.66, W.67, C.70 Chain L: V.84, R.89, V.93 10 PLIP interactions: 7 interactions with chain C, 3 interactions with chain L Hydrophobic interactions: C:Y.45, C:Y.45, C:Y.62, C:Y.62, C:P.63, C:P.63, C:W.67, L:R.89, L:V.93 Salt bridges: L:R.89

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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