SMTL ID : 1k4c.1

Potassium Channel KcsA-Fab complex in high concentration of K+

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.00 Å

Oligo State

hetero-4-4-4-mer

Ligands

4 x F09: NONAN-1-OL(Non-covalent)

F09.1: 4 residues within 4Å: Chain A: R.57 Chain C: L.46, W.87, V.91 4 PLIP interactions: 1 interactions with chain A, 3 interactions with chain C Water bridges: A:R.57 Hydrophobic interactions: C:L.46, C:W.87, C:V.91 F09.10: 4 residues within 4Å: Chain D: R.57 Chain F: L.46, W.87, V.91 4 PLIP interactions: 3 interactions with chain F, 1 interactions with chain D Hydrophobic interactions: F:L.46, F:W.87, F:V.91 Water bridges: D:R.57 F09.19: 4 residues within 4Å: Chain G: R.57 Chain I: L.46, W.87, V.91 4 PLIP interactions: 3 interactions with chain I, 1 interactions with chain G Hydrophobic interactions: I:L.46, I:W.87, I:V.91 Water bridges: G:R.57 F09.28: 4 residues within 4Å: Chain J: R.57 Chain L: L.46, W.87, V.91 4 PLIP interactions: 3 interactions with chain L, 1 interactions with chain J Hydrophobic interactions: L:L.46, L:W.87, L:V.91 Water bridges: J:R.57

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

K.2: 15 residues within 4Å: Chain C: G.77, Y.78 Chain F: G.77, Y.78 Chain I: G.77, Y.78 Chain L: G.77, Y.78 Ligands: K.3, K.11, K.12, K.20, K.21, K.29, K.30 Ligand excluded by PLIP K.3: 19 residues within 4Å: Chain C: V.76, G.77 Chain F: V.76, G.77 Chain I: V.76, G.77 Chain L: V.76, G.77 Ligands: K.2, K.4, K.11, K.12, K.13, K.20, K.21, K.22, K.29, K.30, K.31 Ligand excluded by PLIP K.4: 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.5, K.12, K.13, K.14, K.21, K.22, K.23, K.30, K.31, K.32 Ligand excluded by PLIP K.5: 11 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: K.4, K.13, K.14, K.22, K.23, K.31, K.32 Ligand excluded by PLIP K.6: 3 residues within 4Å: Ligands: K.15, K.24, K.33 Ligand excluded by PLIP K.7: 7 residues within 4Å: Ligands: K.8, K.16, K.17, K.25, K.26, K.34, K.35 Ligand excluded by PLIP K.8: 7 residues within 4Å: Ligands: K.7, K.16, K.17, K.25, K.26, K.34, K.35 Ligand excluded by PLIP K.11: 15 residues within 4Å: Chain C: G.77, Y.78 Chain F: G.77, Y.78 Chain I: G.77, Y.78 Chain L: G.77, Y.78 Ligands: K.2, K.3, K.12, K.20, K.21, K.29, K.30 Ligand excluded by PLIP K.12: 19 residues within 4Å: Chain C: V.76, G.77 Chain F: V.76, G.77 Chain I: V.76, G.77 Chain L: V.76, G.77 Ligands: K.2, K.3, K.4, K.11, K.13, K.20, K.21, K.22, K.29, K.30, K.31 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.3, K.4, K.5, K.12, K.14, K.21, K.22, K.23, K.30, K.31, K.32 Ligand excluded by PLIP K.14: 11 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: K.4, K.5, K.13, K.22, K.23, K.31, K.32 Ligand excluded by PLIP K.15: 3 residues within 4Å: Ligands: K.6, K.24, K.33 Ligand excluded by PLIP K.16: 7 residues within 4Å: Ligands: K.7, K.8, K.17, K.25, K.26, K.34, K.35 Ligand excluded by PLIP K.17: 7 residues within 4Å: Ligands: K.7, K.8, K.16, K.25, K.26, K.34, K.35 Ligand excluded by PLIP K.20: 15 residues within 4Å: Chain C: G.77, Y.78 Chain F: G.77, Y.78 Chain I: G.77, Y.78 Chain L: G.77, Y.78 Ligands: K.2, K.3, K.11, K.12, K.21, K.29, K.30 Ligand excluded by PLIP K.21: 19 residues within 4Å: Chain C: V.76, G.77 Chain F: V.76, G.77 Chain I: V.76, G.77 Chain L: V.76, G.77 Ligands: K.2, K.3, K.4, K.11, K.12, K.13, K.20, K.22, K.29, K.30, K.31 Ligand excluded by PLIP K.22: 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.5, K.12, K.13, K.14, K.21, K.23, K.30, K.31, K.32 Ligand excluded by PLIP K.23: 11 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: K.4, K.5, K.13, K.14, K.22, K.31, K.32 Ligand excluded by PLIP K.24: 3 residues within 4Å: Ligands: K.6, K.15, K.33 Ligand excluded by PLIP K.25: 7 residues within 4Å: Ligands: K.7, K.8, K.16, K.17, K.26, K.34, K.35 Ligand excluded by PLIP K.26: 7 residues within 4Å: Ligands: K.7, K.8, K.16, K.17, K.25, K.34, K.35 Ligand excluded by PLIP K.29: 15 residues within 4Å: Chain C: G.77, Y.78 Chain F: G.77, Y.78 Chain I: G.77, Y.78 Chain L: G.77, Y.78 Ligands: K.2, K.3, K.11, K.12, K.20, K.21, K.30 Ligand excluded by PLIP K.30: 19 residues within 4Å: Chain C: V.76, G.77 Chain F: V.76, G.77 Chain I: V.76, G.77 Chain L: V.76, G.77 Ligands: K.2, K.3, K.4, K.11, K.12, K.13, K.20, K.21, K.22, K.29, K.31 Ligand excluded by PLIP K.31: 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.5, K.12, K.13, K.14, K.21, K.22, K.23, K.30, K.32 Ligand excluded by PLIP K.32: 11 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: K.4, K.5, K.13, K.14, K.22, K.23, K.31 Ligand excluded by PLIP K.33: 3 residues within 4Å: Ligands: K.6, K.15, K.24 Ligand excluded by PLIP K.34: 7 residues within 4Å: Ligands: K.7, K.8, K.16, K.17, K.25, K.26, K.35 Ligand excluded by PLIP K.35: 7 residues within 4Å: Ligands: K.7, K.8, K.16, K.17, K.25, K.26, K.34 Ligand excluded by PLIP

4 x DGA: DIACYL GLYCEROL(Non-covalent)

DGA.9: 12 residues within 4Å: Chain C: V.84, L.86, R.89, V.93 Chain G: T.30 Chain H: E.53 Chain I: Y.45, Y.62, P.63, L.66, W.67, V.70 11 PLIP interactions: 1 interactions with chain G, 3 interactions with chain C, 1 interactions with chain H, 6 interactions with chain I Hydrophobic interactions: G:T.30, C:V.93, I:Y.45, I:P.63, I:L.66, I:L.66, I:W.67, I:V.70 Water bridges: C:R.89 Salt bridges: C:R.89 Hydrogen bonds: H:E.53 DGA.18: 12 residues within 4Å: Chain F: V.84, L.86, R.89, V.93 Chain J: T.30 Chain K: E.53 Chain L: Y.45, Y.62, P.63, L.66, W.67, V.70 11 PLIP interactions: 6 interactions with chain L, 3 interactions with chain F, 1 interactions with chain K, 1 interactions with chain J Hydrophobic interactions: L:Y.45, L:P.63, L:L.66, L:L.66, L:W.67, L:V.70, F:V.93, J:T.30 Water bridges: F:R.89 Salt bridges: F:R.89 Hydrogen bonds: K:E.53 DGA.27: 12 residues within 4Å: Chain D: T.30 Chain E: E.53 Chain F: Y.45, Y.62, P.63, L.66, W.67, V.70 Chain I: V.84, L.86, R.89, V.93 11 PLIP interactions: 1 interactions with chain D, 6 interactions with chain F, 3 interactions with chain I, 1 interactions with chain E Hydrophobic interactions: D:T.30, F:Y.45, F:P.63, F:L.66, F:L.66, F:W.67, F:V.70, I:V.93 Water bridges: I:R.89 Salt bridges: I:R.89 Hydrogen bonds: E:E.53 DGA.36: 12 residues within 4Å: Chain A: T.30 Chain B: E.53 Chain C: Y.45, Y.62, P.63, L.66, W.67, V.70 Chain L: V.84, L.86, R.89, V.93 11 PLIP interactions: 6 interactions with chain C, 1 interactions with chain B, 3 interactions with chain L, 1 interactions with chain A Hydrophobic interactions: C:Y.45, C:P.63, C:L.66, C:L.66, C:W.67, C:V.70, L:V.93, A:T.30 Hydrogen bonds: B:E.53 Water bridges: L:R.89 Salt bridges: L:R.89

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Zhou, Y. et al., Chemistry of ion coordination and hydration revealed by a K+ channel-Fab complex at 2.0 A resolution. Nature (2001)

Release Date

2001-11-14

Peptides

antibody Fab fragment heavy chain: ADGJ
antibody Fab fragment light chain: BEHK
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 heavy chain

antibody Fab fragment light chain

potassium channel KcsA

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