SMTL ID : 2h8p.1

Structure of a K channel with an amide to ester substitution in the selectivity filter

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.25 Å

Oligo State

hetero-4-4-4-mer

Ligands

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

K.1: 11 residues within 4Å: Chain C: T.54 Chain F: T.54 Chain I: T.54 Chain L: T.54 Ligands: K.2, K.8, K.9, K.15, K.16, K.22, K.23 Ligand excluded by PLIP K.2: 19 residues within 4Å: Chain C: T.54, V.55 Chain F: T.54, V.55 Chain I: T.54, V.55 Chain L: T.54, V.55 Ligands: K.1, K.3, K.8, K.9, K.10, K.15, K.16, K.17, K.22, K.23, K.24 Ligand excluded by PLIP K.3: 19 residues within 4Å: Chain C: V.55, G.56 Chain F: V.55, G.56 Chain I: V.55, G.56 Chain L: V.55, G.56 Ligands: K.2, K.4, K.9, K.10, K.11, K.16, K.17, K.18, K.23, K.24, K.25 Ligand excluded by PLIP K.4: 19 residues within 4Å: Chain C: G.56, Y.57 Chain F: G.56, Y.57 Chain I: G.56, Y.57 Chain L: G.56, Y.57 Ligands: K.3, K.5, K.10, K.11, K.12, K.17, K.18, K.19, K.24, K.25, K.26 Ligand excluded by PLIP K.5: 11 residues within 4Å: Chain C: Y.57 Chain F: Y.57 Chain I: Y.57 Chain L: Y.57 Ligands: K.4, K.11, K.12, K.18, K.19, K.25, K.26 Ligand excluded by PLIP K.6: 3 residues within 4Å: Ligands: K.13, K.20, K.27 Ligand excluded by PLIP K.8: 11 residues within 4Å: Chain C: T.54 Chain F: T.54 Chain I: T.54 Chain L: T.54 Ligands: K.1, K.2, K.9, K.15, K.16, K.22, K.23 Ligand excluded by PLIP K.9: 19 residues within 4Å: Chain C: T.54, V.55 Chain F: T.54, V.55 Chain I: T.54, V.55 Chain L: T.54, V.55 Ligands: K.1, K.2, K.3, K.8, K.10, K.15, K.16, K.17, K.22, K.23, K.24 Ligand excluded by PLIP K.10: 19 residues within 4Å: Chain C: V.55, G.56 Chain F: V.55, G.56 Chain I: V.55, G.56 Chain L: V.55, G.56 Ligands: K.2, K.3, K.4, K.9, K.11, K.16, K.17, K.18, K.23, K.24, K.25 Ligand excluded by PLIP K.11: 19 residues within 4Å: Chain C: G.56, Y.57 Chain F: G.56, Y.57 Chain I: G.56, Y.57 Chain L: G.56, Y.57 Ligands: K.3, K.4, K.5, K.10, K.12, K.17, K.18, K.19, K.24, K.25, K.26 Ligand excluded by PLIP K.12: 11 residues within 4Å: Chain C: Y.57 Chain F: Y.57 Chain I: Y.57 Chain L: Y.57 Ligands: K.4, K.5, K.11, K.18, K.19, K.25, K.26 Ligand excluded by PLIP K.13: 3 residues within 4Å: Ligands: K.6, K.20, K.27 Ligand excluded by PLIP K.15: 11 residues within 4Å: Chain C: T.54 Chain F: T.54 Chain I: T.54 Chain L: T.54 Ligands: K.1, K.2, K.8, K.9, K.16, K.22, K.23 Ligand excluded by PLIP K.16: 19 residues within 4Å: Chain C: T.54, V.55 Chain F: T.54, V.55 Chain I: T.54, V.55 Chain L: T.54, V.55 Ligands: K.1, K.2, K.3, K.8, K.9, K.10, K.15, K.17, K.22, K.23, K.24 Ligand excluded by PLIP K.17: 19 residues within 4Å: Chain C: V.55, G.56 Chain F: V.55, G.56 Chain I: V.55, G.56 Chain L: V.55, G.56 Ligands: K.2, K.3, K.4, K.9, K.10, K.11, K.16, K.18, K.23, K.24, K.25 Ligand excluded by PLIP K.18: 19 residues within 4Å: Chain C: G.56, Y.57 Chain F: G.56, Y.57 Chain I: G.56, Y.57 Chain L: G.56, Y.57 Ligands: K.3, K.4, K.5, K.10, K.11, K.12, K.17, K.19, K.24, K.25, K.26 Ligand excluded by PLIP K.19: 11 residues within 4Å: Chain C: Y.57 Chain F: Y.57 Chain I: Y.57 Chain L: Y.57 Ligands: K.4, K.5, K.11, K.12, K.18, K.25, K.26 Ligand excluded by PLIP K.20: 3 residues within 4Å: Ligands: K.6, K.13, K.27 Ligand excluded by PLIP K.22: 11 residues within 4Å: Chain C: T.54 Chain F: T.54 Chain I: T.54 Chain L: T.54 Ligands: K.1, K.2, K.8, K.9, K.15, K.16, K.23 Ligand excluded by PLIP K.23: 19 residues within 4Å: Chain C: T.54, V.55 Chain F: T.54, V.55 Chain I: T.54, V.55 Chain L: T.54, V.55 Ligands: K.1, K.2, K.3, K.8, K.9, K.10, K.15, K.16, K.17, K.22, K.24 Ligand excluded by PLIP K.24: 19 residues within 4Å: Chain C: V.55, G.56 Chain F: V.55, G.56 Chain I: V.55, G.56 Chain L: V.55, G.56 Ligands: K.2, K.3, K.4, K.9, K.10, K.11, K.16, K.17, K.18, K.23, K.25 Ligand excluded by PLIP K.25: 19 residues within 4Å: Chain C: G.56, Y.57 Chain F: G.56, Y.57 Chain I: G.56, Y.57 Chain L: G.56, Y.57 Ligands: K.3, K.4, K.5, K.10, K.11, K.12, K.17, K.18, K.19, K.24, K.26 Ligand excluded by PLIP K.26: 11 residues within 4Å: Chain C: Y.57 Chain F: Y.57 Chain I: Y.57 Chain L: Y.57 Ligands: K.4, K.5, K.11, K.12, K.18, K.19, K.25 Ligand excluded by PLIP K.27: 3 residues within 4Å: Ligands: K.6, K.13, K.20 Ligand excluded by PLIP

4 x B3H: (2S)-2-(BUTYRYLOXY)-3-HYDROXYPROPYL NONANOATE(Non-covalent)

B3H.7: 7 residues within 4Å: Chain C: L.65, R.68, L.69, V.72 Chain I: P.42, W.46, C.49 6 PLIP interactions: 2 interactions with chain I, 4 interactions with chain C Hydrophobic interactions: I:P.42, I:W.46, C:L.65, C:L.69, C:V.72 Hydrogen bonds: C:R.68 B3H.14: 7 residues within 4Å: Chain F: L.65, R.68, L.69, V.72 Chain L: P.42, W.46, C.49 6 PLIP interactions: 4 interactions with chain F, 2 interactions with chain L Hydrophobic interactions: F:L.65, F:L.69, F:V.72, L:P.42, L:W.46 Hydrogen bonds: F:R.68 B3H.21: 7 residues within 4Å: Chain F: P.42, W.46, C.49 Chain I: L.65, R.68, L.69, V.72 6 PLIP interactions: 4 interactions with chain I, 2 interactions with chain F Hydrophobic interactions: I:L.65, I:L.69, I:V.72, F:P.42, F:W.46 Hydrogen bonds: I:R.68 B3H.28: 7 residues within 4Å: Chain C: P.42, W.46, C.49 Chain L: L.65, R.68, L.69, V.72 6 PLIP interactions: 4 interactions with chain L, 2 interactions with chain C Hydrophobic interactions: L:L.65, L:L.69, L:V.72, C:P.42, C:W.46 Hydrogen bonds: L:R.68

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Valiyaveetil, F.I. et al., Structural and Functional Consequences of an Amide-to-Ester Substitution in the Selectivity Filter of a Potassium Channel. J.Am.Chem.Soc. (2006)

Release Date

2006-09-12

Peptides

FAB heavy chain: ADGJ
FAB light chain: BEHK
KcsA 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

KcsA Channel

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