SMTL ID : 1j95.1

KCSA potassium channel with TBA (tetrabutylammonium) and potassium

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.80 Å

Oligo State

homo-tetramer

Ligands

4 x K: POTASSIUM ION(Non-covalent)

K.1: 10 residues within 4Å: Chain A: G.77, Y.78 Chain B: G.77, Y.78, G.79 Chain C: G.77, Y.78 Chain D: G.77, Y.78 Ligands: K.2 4 PLIP interactions: 1 interactions with chain A, 2 interactions with chain B, 1 interactions with chain C Metal complexes: A:G.77, B:G.77, B:Y.78, C:G.77 K.2: 10 residues within 4Å: Chain A: V.76, G.77 Chain B: V.76, G.77 Chain C: V.76, G.77 Chain D: V.76, G.77 Ligands: K.1, K.3 5 PLIP interactions: 2 interactions with chain A, 1 interactions with chain B, 1 interactions with chain C, 1 interactions with chain D Metal complexes: A:V.76, A:G.77, B:G.77, C:G.77, D:G.77 K.3: 10 residues within 4Å: Chain A: T.75, V.76 Chain B: T.75, V.76 Chain C: T.75, V.76 Chain D: T.75, V.76 Ligands: K.2, K.5 5 PLIP interactions: 2 interactions with chain A, 1 interactions with chain B, 1 interactions with chain D, 1 interactions with chain C Metal complexes: A:T.75, A:V.76, B:T.75, D:V.76, C:T.75 K.5: 5 residues within 4Å: Chain A: T.75 Chain B: T.75 Chain C: T.75 Chain D: T.75 Ligands: K.3 5 PLIP interactions: 1 interactions with chain D, 2 interactions with chain B, 1 interactions with chain A, 1 interactions with chain C Metal complexes: D:T.75, B:T.75, B:T.75, A:T.75, C:T.75

1 x TBA: TETRABUTYLAMMONIUM ION(Non-covalent)

TBA.4: 5 residues within 4Å: Chain A: T.75, I.100 Chain B: T.75 Chain D: T.75, I.100 2 PLIP interactions: 1 interactions with chain A, 1 interactions with chain D Hydrophobic interactions: A:I.100, D:I.100

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Zhou, M. et al., Potassium channel receptor site for the inactivation gate and quaternary amine inhibitors. Nature (2001)

Release Date

2001-06-13

Peptides

VOLTAGE-GATED POTASSIUM CHANNEL: ABCD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
C

D
D

Membrane

We predict this structure to be a membrane protein.
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VOLTAGE-GATED POTASSIUM CHANNEL