SMTL ID : 1r3k.1

potassium channel KcsA-Fab complex in low concentration of Tl+

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.80 Å

Oligo State

hetero-4-4-4-mer

Ligands

4 x DGA: DIACYL GLYCEROL(Non-covalent)

DGA.1: 7 residues within 4Å: Chain C: L.86, R.89 Chain G: E.53 Chain I: P.63, L.66, W.67, V.70 8 PLIP interactions: 4 interactions with chain I, 3 interactions with chain C, 1 interactions with chain G Hydrophobic interactions: I:P.63, I:L.66, I:W.67, I:V.70, C:L.86, C:R.89 Salt bridges: C:R.89 Hydrogen bonds: G:E.53 DGA.5: 7 residues within 4Å: Chain F: L.86, R.89 Chain J: E.53 Chain L: P.63, L.66, W.67, V.70 8 PLIP interactions: 1 interactions with chain J, 3 interactions with chain F, 4 interactions with chain L Hydrogen bonds: J:E.53 Hydrophobic interactions: F:L.86, F:R.89, L:P.63, L:L.66, L:W.67, L:V.70 Salt bridges: F:R.89 DGA.9: 7 residues within 4Å: Chain D: E.53 Chain F: P.63, L.66, W.67, V.70 Chain I: L.86, R.89 8 PLIP interactions: 4 interactions with chain F, 3 interactions with chain I, 1 interactions with chain D Hydrophobic interactions: F:P.63, F:L.66, F:W.67, F:V.70, I:L.86, I:R.89 Salt bridges: I:R.89 Hydrogen bonds: D:E.53 DGA.13: 7 residues within 4Å: Chain A: E.53 Chain C: P.63, L.66, W.67, V.70 Chain L: L.86, R.89 8 PLIP interactions: 3 interactions with chain L, 4 interactions with chain C, 1 interactions with chain A Hydrophobic interactions: L:L.86, L:R.89, C:P.63, C:L.66, C:W.67, C:V.70 Salt bridges: L:R.89 Hydrogen bonds: A:E.53

12 x TL: THALLIUM (I) ION(Non-covalent)(Non-functional Binders)

TL.2: 7 residues within 4Å: Chain C: Y.78 Chain F: Y.78 Chain I: Y.78 Chain L: Y.78 Ligands: TL.6, TL.10, TL.14 No protein-ligand interaction detected (PLIP) TL.3: 7 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: TL.7, TL.11, TL.15 No protein-ligand interaction detected (PLIP) TL.4: 3 residues within 4Å: Ligands: TL.8, TL.12, TL.16 No protein-ligand interaction detected (PLIP) TL.6: 7 residues within 4Å: Chain C: Y.78 Chain F: Y.78 Chain I: Y.78 Chain L: Y.78 Ligands: TL.2, TL.10, TL.14 No protein-ligand interaction detected (PLIP) TL.7: 7 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: TL.3, TL.11, TL.15 No protein-ligand interaction detected (PLIP) TL.8: 3 residues within 4Å: Ligands: TL.4, TL.12, TL.16 No protein-ligand interaction detected (PLIP) TL.10: 7 residues within 4Å: Chain C: Y.78 Chain F: Y.78 Chain I: Y.78 Chain L: Y.78 Ligands: TL.2, TL.6, TL.14 No protein-ligand interaction detected (PLIP) TL.11: 7 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: TL.3, TL.7, TL.15 No protein-ligand interaction detected (PLIP) TL.12: 3 residues within 4Å: Ligands: TL.4, TL.8, TL.16 No protein-ligand interaction detected (PLIP) TL.14: 7 residues within 4Å: Chain C: Y.78 Chain F: Y.78 Chain I: Y.78 Chain L: Y.78 Ligands: TL.2, TL.6, TL.10 No protein-ligand interaction detected (PLIP) TL.15: 7 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: TL.3, TL.7, TL.11 No protein-ligand interaction detected (PLIP) TL.16: 3 residues within 4Å: Ligands: TL.4, TL.8, TL.12 No protein-ligand interaction detected (PLIP)

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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