SMTL ID : 2nlj.1

Potassium Channel KcsA(M96V)-Fab complex in KCl

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.52 Å

Oligo State

hetero-4-4-4-mer

Ligands

4 x DGA: DIACYL GLYCEROL(Non-covalent)

DGA.1: 8 residues within 4Å: Chain A: E.53 Chain C: L.41, P.63, L.66, V.70 Chain L: L.86, R.89, V.93 7 PLIP interactions: 3 interactions with chain C, 3 interactions with chain L, 1 interactions with chain A Hydrophobic interactions: C:L.41, C:L.66, C:V.70, L:L.86, L:V.93 Salt bridges: L:R.89 Hydrogen bonds: A:E.53 DGA.5: 8 residues within 4Å: Chain D: E.53 Chain F: L.41, P.63, L.66, V.70 Chain I: L.86, R.89, V.93 7 PLIP interactions: 3 interactions with chain I, 3 interactions with chain F, 1 interactions with chain D Hydrophobic interactions: I:L.86, I:V.93, F:L.41, F:L.66, F:V.70 Salt bridges: I:R.89 Hydrogen bonds: D:E.53 DGA.9: 8 residues within 4Å: Chain C: L.86, R.89, V.93 Chain G: E.53 Chain I: L.41, P.63, L.66, V.70 7 PLIP interactions: 3 interactions with chain C, 3 interactions with chain I, 1 interactions with chain G Hydrophobic interactions: C:L.86, C:V.93, I:L.41, I:L.66, I:V.70 Salt bridges: C:R.89 Hydrogen bonds: G:E.53 DGA.13: 8 residues within 4Å: Chain F: L.86, R.89, V.93 Chain J: E.53 Chain L: L.41, P.63, L.66, V.70 7 PLIP interactions: 3 interactions with chain L, 3 interactions with chain F, 1 interactions with chain J Hydrophobic interactions: L:L.41, L:L.66, L:V.70, F:L.86, F:V.93 Salt bridges: F:R.89 Hydrogen bonds: J:E.53

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

K.2: 7 residues within 4Å: Chain C: G.77 Chain F: G.77 Chain I: G.77 Chain L: G.77 Ligands: K.6, K.10, K.14 4 PLIP interactions: 1 interactions with chain C, 1 interactions with chain I, 1 interactions with chain L, 1 interactions with chain F Metal complexes: C:G.77, I:G.77, L:G.77, F:G.77 K.3: 7 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: K.7, K.11, K.15 4 PLIP interactions: 1 interactions with chain F, 1 interactions with chain C, 1 interactions with chain L, 1 interactions with chain I Metal complexes: F:T.75, C:T.75, L:T.75, I:T.75 K.4: 3 residues within 4Å: Ligands: K.8, K.12, K.16 No protein-ligand interaction detected (PLIP) K.6: 7 residues within 4Å: Chain C: G.77 Chain F: G.77 Chain I: G.77 Chain L: G.77 Ligands: K.2, K.10, K.14 4 PLIP interactions: 1 interactions with chain C, 1 interactions with chain I, 1 interactions with chain L, 1 interactions with chain F Metal complexes: C:G.77, I:G.77, L:G.77, F:G.77 K.7: 7 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: K.3, K.11, K.15 4 PLIP interactions: 1 interactions with chain F, 1 interactions with chain C, 1 interactions with chain L, 1 interactions with chain I Metal complexes: F:T.75, C:T.75, L:T.75, I:T.75 K.8: 3 residues within 4Å: Ligands: K.4, K.12, K.16 No protein-ligand interaction detected (PLIP) K.10: 7 residues within 4Å: Chain C: G.77 Chain F: G.77 Chain I: G.77 Chain L: G.77 Ligands: K.2, K.6, K.14 4 PLIP interactions: 1 interactions with chain C, 1 interactions with chain I, 1 interactions with chain L, 1 interactions with chain F Metal complexes: C:G.77, I:G.77, L:G.77, F:G.77 K.11: 7 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: K.3, K.7, K.15 4 PLIP interactions: 1 interactions with chain F, 1 interactions with chain C, 1 interactions with chain L, 1 interactions with chain I Metal complexes: F:T.75, C:T.75, L:T.75, I:T.75 K.12: 3 residues within 4Å: Ligands: K.4, K.8, K.16 No protein-ligand interaction detected (PLIP) K.14: 7 residues within 4Å: Chain C: G.77 Chain F: G.77 Chain I: G.77 Chain L: G.77 Ligands: K.2, K.6, K.10 4 PLIP interactions: 1 interactions with chain C, 1 interactions with chain I, 1 interactions with chain L, 1 interactions with chain F Metal complexes: C:G.77, I:G.77, L:G.77, F:G.77 K.15: 7 residues within 4Å: Chain C: T.75 Chain F: T.75 Chain I: T.75 Chain L: T.75 Ligands: K.3, K.7, K.11 4 PLIP interactions: 1 interactions with chain F, 1 interactions with chain C, 1 interactions with chain L, 1 interactions with chain I Metal complexes: F:T.75, C:T.75, L:T.75, I:T.75 K.16: 3 residues within 4Å: Ligands: K.4, K.8, K.12 No protein-ligand interaction detected (PLIP)

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Lockless, S.W. et al., Structural and Thermodynamic Properties of Selective Ion Binding in a K(+) Channel. Plos Biol. (2007)

Release Date

2007-05-15

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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