SMTL ID : 4uuj.1

POTASSIUM CHANNEL KCSA-FAB WITH TETRAHEXYLAMMONIUM

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.40 Å

Oligo State

hetero-4-4-4-mer

Ligands

16 x F09: NONAN-1-OL(Non-covalent)(Non-functional Binders)

F09.1: 3 residues within 4Å: Chain A: R.57 Chain C: W.74, V.78 Ligand excluded by PLIP F09.12: 7 residues within 4Å: Chain C: L.6, W.13, A.16, G.17, T.20, V.93 Ligands: F09.13 Ligand excluded by PLIP F09.13: 3 residues within 4Å: Chain C: S.9, W.13 Ligands: F09.12 Ligand excluded by PLIP F09.14: 0 residues within 4Å: (No contacts) Ligand excluded by PLIP F09.15: 3 residues within 4Å: Chain D: R.57 Chain F: W.74, V.78 Ligand excluded by PLIP F09.26: 7 residues within 4Å: Chain F: L.6, W.13, A.16, G.17, T.20, V.93 Ligands: F09.27 Ligand excluded by PLIP F09.27: 3 residues within 4Å: Chain F: S.9, W.13 Ligands: F09.26 Ligand excluded by PLIP F09.28: 0 residues within 4Å: (No contacts) Ligand excluded by PLIP F09.29: 3 residues within 4Å: Chain G: R.57 Chain I: W.74, V.78 Ligand excluded by PLIP F09.40: 7 residues within 4Å: Chain I: L.6, W.13, A.16, G.17, T.20, V.93 Ligands: F09.41 Ligand excluded by PLIP F09.41: 3 residues within 4Å: Chain I: S.9, W.13 Ligands: F09.40 Ligand excluded by PLIP F09.42: 0 residues within 4Å: (No contacts) Ligand excluded by PLIP F09.43: 3 residues within 4Å: Chain J: R.57 Chain L: W.74, V.78 Ligand excluded by PLIP F09.54: 7 residues within 4Å: Chain L: L.6, W.13, A.16, G.17, T.20, V.93 Ligands: F09.55 Ligand excluded by PLIP F09.55: 3 residues within 4Å: Chain L: S.9, W.13 Ligands: F09.54 Ligand excluded by PLIP F09.56: 0 residues within 4Å: (No contacts) Ligand excluded by PLIP

4 x IND: INDOLE(Non-covalent)

IND.2: 1 residues within 4Å: Chain B: W.163 2 PLIP interactions: 2 interactions with chain B pi-Stacking: B:W.163, B:W.163 IND.16: 1 residues within 4Å: Chain E: W.163 2 PLIP interactions: 2 interactions with chain E pi-Stacking: E:W.163, E:W.163 IND.30: 1 residues within 4Å: Chain H: W.163 2 PLIP interactions: 2 interactions with chain H pi-Stacking: H:W.163, H:W.163 IND.44: 1 residues within 4Å: Chain K: W.163 2 PLIP interactions: 2 interactions with chain K pi-Stacking: K:W.163, K:W.163

16 x K: POTASSIUM ION(Non-covalent)

K.3: 15 residues within 4Å: Chain C: G.64, Y.65 Chain F: G.64, Y.65 Chain I: G.64, Y.65 Chain L: G.64, Y.65 Ligands: K.4, K.17, K.18, K.31, K.32, K.45, K.46 Ligand excluded by PLIP K.4: 19 residues within 4Å: Chain C: V.63, G.64 Chain F: V.63, G.64 Chain I: V.63, G.64 Chain L: V.63, G.64 Ligands: K.3, K.5, K.17, K.18, K.19, K.31, K.32, K.33, K.45, K.46, K.47 Ligand excluded by PLIP K.5: 19 residues within 4Å: Chain C: T.62, V.63 Chain F: T.62, V.63 Chain I: T.62, V.63 Chain L: T.62, V.63 Ligands: K.4, K.6, K.18, K.19, K.20, K.32, K.33, K.34, K.46, K.47, K.48 Ligand excluded by PLIP K.6: 11 residues within 4Å: Chain C: T.62 Chain F: T.62 Chain I: T.62 Chain L: T.62 Ligands: K.5, K.19, K.20, K.33, K.34, K.47, K.48 Ligand excluded by PLIP K.17: 15 residues within 4Å: Chain C: G.64, Y.65 Chain F: G.64, Y.65 Chain I: G.64, Y.65 Chain L: G.64, Y.65 Ligands: K.3, K.4, K.18, K.31, K.32, K.45, K.46 Ligand excluded by PLIP K.18: 19 residues within 4Å: Chain C: V.63, G.64 Chain F: V.63, G.64 Chain I: V.63, G.64 Chain L: V.63, G.64 Ligands: K.3, K.4, K.5, K.17, K.19, K.31, K.32, K.33, K.45, K.46, K.47 Ligand excluded by PLIP K.19: 19 residues within 4Å: Chain C: T.62, V.63 Chain F: T.62, V.63 Chain I: T.62, V.63 Chain L: T.62, V.63 Ligands: K.4, K.5, K.6, K.18, K.20, K.32, K.33, K.34, K.46, K.47, K.48 Ligand excluded by PLIP K.20: 11 residues within 4Å: Chain C: T.62 Chain F: T.62 Chain I: T.62 Chain L: T.62 Ligands: K.5, K.6, K.19, K.33, K.34, K.47, K.48 Ligand excluded by PLIP K.31: 15 residues within 4Å: Chain C: G.64, Y.65 Chain F: G.64, Y.65 Chain I: G.64, Y.65 Chain L: G.64, Y.65 Ligands: K.3, K.4, K.17, K.18, K.32, K.45, K.46 Ligand excluded by PLIP K.32: 19 residues within 4Å: Chain C: V.63, G.64 Chain F: V.63, G.64 Chain I: V.63, G.64 Chain L: V.63, G.64 Ligands: K.3, K.4, K.5, K.17, K.18, K.19, K.31, K.33, K.45, K.46, K.47 Ligand excluded by PLIP K.33: 19 residues within 4Å: Chain C: T.62, V.63 Chain F: T.62, V.63 Chain I: T.62, V.63 Chain L: T.62, V.63 Ligands: K.4, K.5, K.6, K.18, K.19, K.20, K.32, K.34, K.46, K.47, K.48 Ligand excluded by PLIP K.34: 11 residues within 4Å: Chain C: T.62 Chain F: T.62 Chain I: T.62 Chain L: T.62 Ligands: K.5, K.6, K.19, K.20, K.33, K.47, K.48 Ligand excluded by PLIP K.45: 15 residues within 4Å: Chain C: G.64, Y.65 Chain F: G.64, Y.65 Chain I: G.64, Y.65 Chain L: G.64, Y.65 Ligands: K.3, K.4, K.17, K.18, K.31, K.32, K.46 Ligand excluded by PLIP K.46: 19 residues within 4Å: Chain C: V.63, G.64 Chain F: V.63, G.64 Chain I: V.63, G.64 Chain L: V.63, G.64 Ligands: K.3, K.4, K.5, K.17, K.18, K.19, K.31, K.32, K.33, K.45, K.47 Ligand excluded by PLIP K.47: 19 residues within 4Å: Chain C: T.62, V.63 Chain F: T.62, V.63 Chain I: T.62, V.63 Chain L: T.62, V.63 Ligands: K.4, K.5, K.6, K.18, K.19, K.20, K.32, K.33, K.34, K.46, K.48 Ligand excluded by PLIP K.48: 11 residues within 4Å: Chain C: T.62 Chain F: T.62 Chain I: T.62 Chain L: T.62 Ligands: K.5, K.6, K.19, K.20, K.33, K.34, K.47 Ligand excluded by PLIP

4 x DGA: DIACYL GLYCEROL(Non-covalent)

DGA.7: 11 residues within 4Å: Chain C: L.73, R.76, V.80 Chain D: S.31 Chain E: E.53 Chain F: Y.32, Y.49, P.50, L.53, W.54 Ligands: PO4.11 9 PLIP interactions: 5 interactions with chain F, 3 interactions with chain C, 1 interactions with chain E Hydrophobic interactions: F:Y.32, F:Y.32, F:Y.49, F:L.53, F:W.54, C:V.80 Water bridges: C:R.76 Salt bridges: C:R.76 Hydrogen bonds: E:E.53 DGA.21: 11 residues within 4Å: Chain F: L.73, R.76, V.80 Chain J: S.31 Chain K: E.53 Chain L: Y.32, Y.49, P.50, L.53, W.54 Ligands: PO4.25 9 PLIP interactions: 5 interactions with chain L, 1 interactions with chain K, 3 interactions with chain F Hydrophobic interactions: L:Y.32, L:Y.32, L:Y.49, L:L.53, L:W.54, F:V.80 Hydrogen bonds: K:E.53 Water bridges: F:R.76 Salt bridges: F:R.76 DGA.35: 11 residues within 4Å: Chain A: S.31 Chain B: E.53 Chain C: Y.32, Y.49, P.50, L.53, W.54 Chain I: L.73, R.76, V.80 Ligands: PO4.39 9 PLIP interactions: 3 interactions with chain I, 5 interactions with chain C, 1 interactions with chain B Hydrophobic interactions: I:V.80, C:Y.32, C:Y.32, C:Y.49, C:L.53, C:W.54 Water bridges: I:R.76 Salt bridges: I:R.76 Hydrogen bonds: B:E.53 DGA.49: 11 residues within 4Å: Chain G: S.31 Chain H: E.53 Chain I: Y.32, Y.49, P.50, L.53, W.54 Chain L: L.73, R.76, V.80 Ligands: PO4.53 9 PLIP interactions: 5 interactions with chain I, 1 interactions with chain H, 3 interactions with chain L Hydrophobic interactions: I:Y.32, I:Y.32, I:Y.49, I:L.53, I:W.54, L:V.80 Hydrogen bonds: H:E.53 Water bridges: L:R.76 Salt bridges: L:R.76

4 x CO: COBALT (II) ION(Non-covalent)

CO.8: 7 residues within 4Å: Chain C: H.111 Chain F: H.111 Chain I: H.111 Chain L: H.111 Ligands: CO.22, CO.36, CO.50 4 PLIP interactions: 1 interactions with chain I, 1 interactions with chain C, 1 interactions with chain L, 1 interactions with chain F Metal complexes: I:H.111, C:H.111, L:H.111, F:H.111 CO.22: 7 residues within 4Å: Chain C: H.111 Chain F: H.111 Chain I: H.111 Chain L: H.111 Ligands: CO.8, CO.36, CO.50 4 PLIP interactions: 1 interactions with chain I, 1 interactions with chain C, 1 interactions with chain L, 1 interactions with chain F Metal complexes: I:H.111, C:H.111, L:H.111, F:H.111 CO.36: 7 residues within 4Å: Chain C: H.111 Chain F: H.111 Chain I: H.111 Chain L: H.111 Ligands: CO.8, CO.22, CO.50 4 PLIP interactions: 1 interactions with chain I, 1 interactions with chain C, 1 interactions with chain L, 1 interactions with chain F Metal complexes: I:H.111, C:H.111, L:H.111, F:H.111 CO.50: 7 residues within 4Å: Chain C: H.111 Chain F: H.111 Chain I: H.111 Chain L: H.111 Ligands: CO.8, CO.22, CO.36 4 PLIP interactions: 1 interactions with chain I, 1 interactions with chain F, 1 interactions with chain L, 1 interactions with chain C Metal complexes: I:H.111, F:H.111, L:H.111, C:H.111

8 x XA7: TETRAHEXYL AMMONNIUM

XA7.9: 14 residues within 4Å: Chain C: G.66, Y.69 Chain F: Y.65, G.66, Y.69 Chain I: Y.65, G.66, Y.69 Chain L: Y.65, G.66, Y.69 Ligands: XA7.23, XA7.37, XA7.51 1 PLIP interactions: 1 interactions with chain I Hydrophobic interactions: I:Y.69 XA7.10: 27 residues within 4Å: Chain C: A.60, T.61, T.62, G.86, I.87, F.90 Chain F: A.60, T.61, T.62, G.86, I.87, F.90 Chain I: A.60, T.61, T.62, G.86, I.87, F.90 Chain L: A.60, T.61, T.62, G.86, I.87, F.90 Ligands: XA7.24, XA7.38, XA7.52 8 PLIP interactions: 2 interactions with chain C, 2 interactions with chain F, 2 interactions with chain L, 2 interactions with chain I Hydrophobic interactions: C:I.87, C:F.90, F:I.87, F:F.90, L:I.87, L:F.90, I:I.87, I:F.90 XA7.23: 14 residues within 4Å: Chain C: Y.65, G.66, Y.69 Chain F: G.66, Y.69 Chain I: Y.65, G.66, Y.69 Chain L: Y.65, G.66, Y.69 Ligands: XA7.9, XA7.37, XA7.51 1 PLIP interactions: 1 interactions with chain C Hydrophobic interactions: C:Y.69 XA7.24: 27 residues within 4Å: Chain C: A.60, T.61, T.62, G.86, I.87, F.90 Chain F: A.60, T.61, T.62, G.86, I.87, F.90 Chain I: A.60, T.61, T.62, G.86, I.87, F.90 Chain L: A.60, T.61, T.62, G.86, I.87, F.90 Ligands: XA7.10, XA7.38, XA7.52 8 PLIP interactions: 2 interactions with chain C, 2 interactions with chain F, 2 interactions with chain L, 2 interactions with chain I Hydrophobic interactions: C:I.87, C:F.90, F:I.87, F:F.90, L:I.87, L:F.90, I:I.87, I:F.90 XA7.37: 14 residues within 4Å: Chain C: Y.65, G.66, Y.69 Chain F: Y.65, G.66, Y.69 Chain I: G.66, Y.69 Chain L: Y.65, G.66, Y.69 Ligands: XA7.9, XA7.23, XA7.51 1 PLIP interactions: 1 interactions with chain L Hydrophobic interactions: L:Y.69 XA7.38: 27 residues within 4Å: Chain C: A.60, T.61, T.62, G.86, I.87, F.90 Chain F: A.60, T.61, T.62, G.86, I.87, F.90 Chain I: A.60, T.61, T.62, G.86, I.87, F.90 Chain L: A.60, T.61, T.62, G.86, I.87, F.90 Ligands: XA7.10, XA7.24, XA7.52 8 PLIP interactions: 2 interactions with chain C, 2 interactions with chain L, 2 interactions with chain F, 2 interactions with chain I Hydrophobic interactions: C:I.87, C:F.90, L:I.87, L:F.90, F:I.87, F:F.90, I:I.87, I:F.90 XA7.51: 14 residues within 4Å: Chain C: Y.65, G.66, Y.69 Chain F: Y.65, G.66, Y.69 Chain I: Y.65, G.66, Y.69 Chain L: G.66, Y.69 Ligands: XA7.9, XA7.23, XA7.37 1 PLIP interactions: 1 interactions with chain F Hydrophobic interactions: F:Y.69 XA7.52: 27 residues within 4Å: Chain C: A.60, T.61, T.62, G.86, I.87, F.90 Chain F: A.60, T.61, T.62, G.86, I.87, F.90 Chain I: A.60, T.61, T.62, G.86, I.87, F.90 Chain L: A.60, T.61, T.62, G.86, I.87, F.90 Ligands: XA7.10, XA7.24, XA7.38 8 PLIP interactions: 2 interactions with chain C, 2 interactions with chain L, 2 interactions with chain F, 2 interactions with chain I Hydrophobic interactions: C:I.87, C:F.90, L:I.87, L:F.90, F:I.87, F:F.90, I:I.87, I:F.90

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

PO4.11: 4 residues within 4Å: Chain C: V.71 Chain E: Y.50, E.53 Ligands: DGA.7 2 PLIP interactions: 1 interactions with chain F, 1 interactions with chain C Hydrogen bonds: F:R.51 Water bridges: C:L.73 PO4.25: 4 residues within 4Å: Chain F: V.71 Chain K: Y.50, E.53 Ligands: DGA.21 2 PLIP interactions: 1 interactions with chain L, 1 interactions with chain F Hydrogen bonds: L:R.51 Water bridges: F:L.73 PO4.39: 4 residues within 4Å: Chain B: Y.50, E.53 Chain I: V.71 Ligands: DGA.35 2 PLIP interactions: 1 interactions with chain C, 1 interactions with chain I Hydrogen bonds: C:R.51 Water bridges: I:L.73 PO4.53: 4 residues within 4Å: Chain H: Y.50, E.53 Chain L: V.71 Ligands: DGA.49 2 PLIP interactions: 1 interactions with chain L, 1 interactions with chain I Water bridges: L:L.73 Hydrogen bonds: I:R.51

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Lenaeus, M.J. et al., Structures of Kcsa in Complex with Symmetrical Quaternary Ammonium Compounds Reveal a Hydrophobic Binding Site. Biochemistry (2014)

Release Date

2014-08-27

Peptides

ANTIBODY FAB FRAGMENT LIGHT CHAIN: ADGJ
ANTIBODY FAB FRAGMENT HEAVY CHAIN: BEHK
VOLTAGE-GATED POTASSIUM CHANNEL KCSA: 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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ANTIBODY FAB FRAGMENT LIGHT CHAIN

ANTIBODY FAB FRAGMENT HEAVY CHAIN

VOLTAGE-GATED POTASSIUM CHANNEL KCSA

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