SMTL ID : 2bob.1

Potassium channel KcsA-Fab complex in thallium with tetrabutylammonium (TBA)

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.76 Å

Oligo State

hetero-4-4-4-mer

Ligands

4 x TL: THALLIUM (I) ION(Non-covalent)

TL.1: 7 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: TL.4, TL.7, TL.10 3 PLIP interactions: 1 interactions with chain L, 1 interactions with chain F, 1 interactions with chain I Metal complexes: L:T.75, F:T.75, I:T.75 TL.4: 7 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: TL.1, TL.7, TL.10 3 PLIP interactions: 1 interactions with chain L, 1 interactions with chain C, 1 interactions with chain I Metal complexes: L:T.75, C:T.75, I:T.75 TL.7: 7 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: TL.1, TL.4, TL.10 3 PLIP interactions: 1 interactions with chain L, 1 interactions with chain C, 1 interactions with chain F Metal complexes: L:T.75, C:T.75, F:T.75 TL.10: 7 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: TL.1, TL.4, TL.7 3 PLIP interactions: 1 interactions with chain C, 1 interactions with chain F, 1 interactions with chain I Metal complexes: C:T.75, F:T.75, I:T.75

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

CO.2: 7 residues within 4Å: Chain C: H.124 Chain F: H.124 Chain I: H.124 Chain L: H.124 Ligands: CO.5, CO.8, CO.11 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.124, F:H.124, L:H.124, C:H.124 CO.5: 7 residues within 4Å: Chain C: H.124 Chain F: H.124 Chain I: H.124 Chain L: H.124 Ligands: CO.2, CO.8, CO.11 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.124, F:H.124, L:H.124, C:H.124 CO.8: 7 residues within 4Å: Chain C: H.124 Chain F: H.124 Chain I: H.124 Chain L: H.124 Ligands: CO.2, CO.5, CO.11 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.124, F:H.124, L:H.124, C:H.124 CO.11: 7 residues within 4Å: Chain C: H.124 Chain F: H.124 Chain I: H.124 Chain L: H.124 Ligands: CO.2, CO.5, CO.8 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.124, F:H.124, L:H.124, C:H.124

4 x TBA: TETRABUTYLAMMONIUM ION(Non-covalent)

TBA.3: 18 residues within 4Å: Chain C: A.73, T.74, T.75, I.100, F.103 Chain F: F.103 Chain I: A.73, G.99, I.100, F.103 Chain L: A.73, T.74, T.75, I.100, F.103 Ligands: TBA.6, TBA.9, TBA.12 9 PLIP interactions: 3 interactions with chain L, 3 interactions with chain C, 1 interactions with chain F, 2 interactions with chain I Hydrophobic interactions: L:T.75, L:I.100, L:F.103, C:T.75, C:I.100, C:F.103, F:F.103, I:F.103, I:F.103 TBA.6: 18 residues within 4Å: Chain C: A.73, G.99, I.100, F.103 Chain F: A.73, T.74, T.75, I.100, F.103 Chain I: A.73, T.74, T.75, I.100, F.103 Chain L: F.103 Ligands: TBA.3, TBA.9, TBA.12 9 PLIP interactions: 3 interactions with chain F, 3 interactions with chain I, 2 interactions with chain C, 1 interactions with chain L Hydrophobic interactions: F:T.75, F:I.100, F:F.103, I:T.75, I:I.100, I:F.103, C:F.103, C:F.103, L:F.103 TBA.9: 18 residues within 4Å: Chain C: F.103 Chain F: A.73, T.74, T.75, I.100, F.103 Chain I: A.73, T.74, T.75, I.100, F.103 Chain L: A.73, G.99, I.100, F.103 Ligands: TBA.3, TBA.6, TBA.12 9 PLIP interactions: 3 interactions with chain F, 3 interactions with chain I, 1 interactions with chain C, 2 interactions with chain L Hydrophobic interactions: F:T.75, F:I.100, F:F.103, I:T.75, I:I.100, I:F.103, C:F.103, L:F.103, L:F.103 TBA.12: 18 residues within 4Å: Chain C: A.73, T.74, T.75, I.100, F.103 Chain F: A.73, G.99, I.100, F.103 Chain I: F.103 Chain L: A.73, T.74, T.75, I.100, F.103 Ligands: TBA.3, TBA.6, TBA.9 9 PLIP interactions: 3 interactions with chain L, 3 interactions with chain C, 2 interactions with chain F, 1 interactions with chain I Hydrophobic interactions: L:T.75, L:I.100, L:F.103, C:T.75, C:I.100, C:F.103, F:F.103, F:F.103, I:F.103

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Lenaeus, M.J. et al., Structural Basis of Tea Blockade in a Model Potassium Channel. Nat.Struct.Mol.Biol. (2005)

Release Date

2005-04-27

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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