SMTL ID : 1r3l.1

potassium channel KcsA-Fab complex in Cs+

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.41 Å

Oligo State

hetero-4-4-4-mer

Ligands

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

F09.1: 3 residues within 4Å: Chain B: R.57 Chain C: A.50, V.91 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:R.57 F09.8: 3 residues within 4Å: Chain E: R.57 Chain F: A.50, V.91 1 PLIP interactions: 1 interactions with chain E Hydrogen bonds: E:R.57 F09.15: 3 residues within 4Å: Chain H: R.57 Chain I: A.50, V.91 1 PLIP interactions: 1 interactions with chain H Hydrogen bonds: H:R.57 F09.22: 3 residues within 4Å: Chain K: R.57 Chain L: A.50, V.91 1 PLIP interactions: 1 interactions with chain K Hydrogen bonds: K:R.57

20 x CS: CESIUM ION(Non-covalent)(Non-functional Binders)

CS.2: 11 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: CS.9, CS.16, CS.23 Ligand excluded by PLIP CS.3: 11 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: CS.10, CS.17, CS.24 Ligand excluded by PLIP CS.4: 11 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: CS.5, CS.11, CS.12, CS.18, CS.19, CS.25, CS.26 Ligand excluded by PLIP CS.5: 15 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: CS.4, CS.6, CS.11, CS.12, CS.13, CS.18, CS.19, CS.20, CS.25, CS.26, CS.27 Ligand excluded by PLIP CS.6: 7 residues within 4Å: Ligands: CS.5, CS.12, CS.13, CS.19, CS.20, CS.26, CS.27 Ligand excluded by PLIP CS.9: 11 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: CS.2, CS.16, CS.23 Ligand excluded by PLIP CS.10: 11 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: CS.3, CS.17, CS.24 Ligand excluded by PLIP CS.11: 11 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: CS.4, CS.5, CS.12, CS.18, CS.19, CS.25, CS.26 Ligand excluded by PLIP CS.12: 15 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: CS.4, CS.5, CS.6, CS.11, CS.13, CS.18, CS.19, CS.20, CS.25, CS.26, CS.27 Ligand excluded by PLIP CS.13: 7 residues within 4Å: Ligands: CS.5, CS.6, CS.12, CS.19, CS.20, CS.26, CS.27 Ligand excluded by PLIP CS.16: 11 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: CS.2, CS.9, CS.23 Ligand excluded by PLIP CS.17: 11 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: CS.3, CS.10, CS.24 Ligand excluded by PLIP CS.18: 11 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: CS.4, CS.5, CS.11, CS.12, CS.19, CS.25, CS.26 Ligand excluded by PLIP CS.19: 15 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: CS.4, CS.5, CS.6, CS.11, CS.12, CS.13, CS.18, CS.20, CS.25, CS.26, CS.27 Ligand excluded by PLIP CS.20: 7 residues within 4Å: Ligands: CS.5, CS.6, CS.12, CS.13, CS.19, CS.26, CS.27 Ligand excluded by PLIP CS.23: 11 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: CS.2, CS.9, CS.16 Ligand excluded by PLIP CS.24: 11 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: CS.3, CS.10, CS.17 Ligand excluded by PLIP CS.25: 11 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: CS.4, CS.5, CS.11, CS.12, CS.18, CS.19, CS.26 Ligand excluded by PLIP CS.26: 15 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: CS.4, CS.5, CS.6, CS.11, CS.12, CS.13, CS.18, CS.19, CS.20, CS.25, CS.27 Ligand excluded by PLIP CS.27: 7 residues within 4Å: Ligands: CS.5, CS.6, CS.12, CS.13, CS.19, CS.20, CS.26 Ligand excluded by PLIP

4 x DGA: DIACYL GLYCEROL(Non-covalent)

DGA.7: 7 residues within 4Å: Chain C: V.84, L.86, R.89 Chain I: P.63, R.64, L.66, W.67 5 PLIP interactions: 2 interactions with chain I, 3 interactions with chain C Hydrophobic interactions: I:P.63, I:W.67, C:L.86 Water bridges: C:L.86 Salt bridges: C:R.89 DGA.14: 7 residues within 4Å: Chain F: V.84, L.86, R.89 Chain L: P.63, R.64, L.66, W.67 5 PLIP interactions: 3 interactions with chain F, 2 interactions with chain L Hydrophobic interactions: F:L.86, L:P.63, L:W.67 Water bridges: F:L.86 Salt bridges: F:R.89 DGA.21: 7 residues within 4Å: Chain F: P.63, R.64, L.66, W.67 Chain I: V.84, L.86, R.89 5 PLIP interactions: 3 interactions with chain I, 2 interactions with chain F Hydrophobic interactions: I:L.86, F:P.63, F:W.67 Water bridges: I:L.86 Salt bridges: I:R.89 DGA.28: 7 residues within 4Å: Chain C: P.63, R.64, L.66, W.67 Chain L: V.84, L.86, R.89 5 PLIP interactions: 3 interactions with chain L, 2 interactions with chain C Hydrophobic interactions: L:L.86, C:P.63, C:W.67 Water bridges: L:L.86 Salt bridges: L:R.89

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Zhou, Y. et al., The occupancy of ions in the K+ selectivity filter: Charge balance and coupling of ion binding to a protein conformational change underlie high conduction rates. J.Mol.Biol. (2003)

Release Date

2003-11-25

Peptides

Antibody Fab fragment light chain: ADGJ
Antibody Fab fragment heavy 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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Antibody Fab fragment light chain

Antibody Fab fragment heavy chain

Voltage-gated potassium channel

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