SMTL ID : 4lcu.1

Structure of KcsA with E118A mutation

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.75 Å

Oligo State

hetero-oligomer

Ligands

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

K.1: 11 residues within 4Å: Chain C: T.82 Chain F: T.82 Chain I: T.82 Chain L: T.82 Ligands: K.2, K.8, K.9, K.15, K.16, K.22, K.23 Ligand excluded by PLIP K.2: 19 residues within 4Å: Chain C: T.82, V.83 Chain F: T.82, V.83 Chain I: T.82, V.83 Chain L: T.82, V.83 Ligands: K.1, K.3, K.8, K.9, K.10, K.15, K.16, K.17, K.22, K.23, K.24 Ligand excluded by PLIP K.3: 19 residues within 4Å: Chain C: V.83, G.84 Chain F: V.83, G.84 Chain I: V.83, G.84 Chain L: V.83, G.84 Ligands: K.2, K.4, K.9, K.10, K.11, K.16, K.17, K.18, K.23, K.24, K.25 Ligand excluded by PLIP K.4: 19 residues within 4Å: Chain C: G.84, Y.85, G.86 Chain F: G.84, Y.85, G.86 Chain I: G.84, Y.85, G.86 Chain L: G.84, Y.85, G.86 Ligands: K.3, K.10, K.11, K.17, K.18, K.24, K.25 Ligand excluded by PLIP K.5: 3 residues within 4Å: Ligands: K.12, K.19, K.26 Ligand excluded by PLIP K.6: 3 residues within 4Å: Ligands: K.13, K.20, K.27 Ligand excluded by PLIP K.8: 11 residues within 4Å: Chain C: T.82 Chain F: T.82 Chain I: T.82 Chain L: T.82 Ligands: K.1, K.2, K.9, K.15, K.16, K.22, K.23 Ligand excluded by PLIP K.9: 19 residues within 4Å: Chain C: T.82, V.83 Chain F: T.82, V.83 Chain I: T.82, V.83 Chain L: T.82, V.83 Ligands: K.1, K.2, K.3, K.8, K.10, K.15, K.16, K.17, K.22, K.23, K.24 Ligand excluded by PLIP K.10: 19 residues within 4Å: Chain C: V.83, G.84 Chain F: V.83, G.84 Chain I: V.83, G.84 Chain L: V.83, G.84 Ligands: K.2, K.3, K.4, K.9, K.11, K.16, K.17, K.18, K.23, K.24, K.25 Ligand excluded by PLIP K.11: 19 residues within 4Å: Chain C: G.84, Y.85, G.86 Chain F: G.84, Y.85, G.86 Chain I: G.84, Y.85, G.86 Chain L: G.84, Y.85, G.86 Ligands: K.3, K.4, K.10, K.17, K.18, K.24, K.25 Ligand excluded by PLIP K.12: 3 residues within 4Å: Ligands: K.5, K.19, K.26 Ligand excluded by PLIP K.13: 3 residues within 4Å: Ligands: K.6, K.20, K.27 Ligand excluded by PLIP K.15: 11 residues within 4Å: Chain C: T.82 Chain F: T.82 Chain I: T.82 Chain L: T.82 Ligands: K.1, K.2, K.8, K.9, K.16, K.22, K.23 Ligand excluded by PLIP K.16: 19 residues within 4Å: Chain C: T.82, V.83 Chain F: T.82, V.83 Chain I: T.82, V.83 Chain L: T.82, V.83 Ligands: K.1, K.2, K.3, K.8, K.9, K.10, K.15, K.17, K.22, K.23, K.24 Ligand excluded by PLIP K.17: 19 residues within 4Å: Chain C: V.83, G.84 Chain F: V.83, G.84 Chain I: V.83, G.84 Chain L: V.83, G.84 Ligands: K.2, K.3, K.4, K.9, K.10, K.11, K.16, K.18, K.23, K.24, K.25 Ligand excluded by PLIP K.18: 19 residues within 4Å: Chain C: G.84, Y.85, G.86 Chain F: G.84, Y.85, G.86 Chain I: G.84, Y.85, G.86 Chain L: G.84, Y.85, G.86 Ligands: K.3, K.4, K.10, K.11, K.17, K.24, K.25 Ligand excluded by PLIP K.19: 3 residues within 4Å: Ligands: K.5, K.12, K.26 Ligand excluded by PLIP K.20: 3 residues within 4Å: Ligands: K.6, K.13, K.27 Ligand excluded by PLIP K.22: 11 residues within 4Å: Chain C: T.82 Chain F: T.82 Chain I: T.82 Chain L: T.82 Ligands: K.1, K.2, K.8, K.9, K.15, K.16, K.23 Ligand excluded by PLIP K.23: 19 residues within 4Å: Chain C: T.82, V.83 Chain F: T.82, V.83 Chain I: T.82, V.83 Chain L: T.82, V.83 Ligands: K.1, K.2, K.3, K.8, K.9, K.10, K.15, K.16, K.17, K.22, K.24 Ligand excluded by PLIP K.24: 19 residues within 4Å: Chain C: V.83, G.84 Chain F: V.83, G.84 Chain I: V.83, G.84 Chain L: V.83, G.84 Ligands: K.2, K.3, K.4, K.9, K.10, K.11, K.16, K.17, K.18, K.23, K.25 Ligand excluded by PLIP K.25: 19 residues within 4Å: Chain C: G.84, Y.85, G.86 Chain F: G.84, Y.85, G.86 Chain I: G.84, Y.85, G.86 Chain L: G.84, Y.85, G.86 Ligands: K.3, K.4, K.10, K.11, K.17, K.18, K.24 Ligand excluded by PLIP K.26: 3 residues within 4Å: Ligands: K.5, K.12, K.19 Ligand excluded by PLIP K.27: 3 residues within 4Å: Ligands: K.6, K.13, K.20 Ligand excluded by PLIP

4 x DGA: DIACYL GLYCEROL(Non-covalent)

DGA.7: 11 residues within 4Å: Chain C: V.91, L.93, R.96, L.97 Chain K: E.53 Chain L: L.48, Y.52, Y.69, P.70, L.73, W.74 7 PLIP interactions: 1 interactions with chain K, 5 interactions with chain L, 1 interactions with chain C Hydrogen bonds: K:E.53 Hydrophobic interactions: L:Y.52, L:Y.52, L:Y.69, L:L.73, L:W.74, C:L.97 DGA.14: 11 residues within 4Å: Chain F: V.91, L.93, R.96, L.97 Chain H: E.53 Chain I: L.48, Y.52, Y.69, P.70, L.73, W.74 7 PLIP interactions: 5 interactions with chain I, 1 interactions with chain F, 1 interactions with chain H Hydrophobic interactions: I:Y.52, I:Y.52, I:Y.69, I:L.73, I:W.74, F:L.97 Hydrogen bonds: H:E.53 DGA.21: 11 residues within 4Å: Chain B: E.53 Chain C: L.48, Y.52, Y.69, P.70, L.73, W.74 Chain I: V.91, L.93, R.96, L.97 7 PLIP interactions: 5 interactions with chain C, 1 interactions with chain I, 1 interactions with chain B Hydrophobic interactions: C:Y.52, C:Y.52, C:Y.69, C:L.73, C:W.74, I:L.97 Hydrogen bonds: B:E.53 DGA.28: 11 residues within 4Å: Chain E: E.53 Chain F: L.48, Y.52, Y.69, P.70, L.73, W.74 Chain L: V.91, L.93, R.96, L.97 7 PLIP interactions: 5 interactions with chain F, 1 interactions with chain L, 1 interactions with chain E Hydrophobic interactions: F:Y.52, F:Y.52, F:Y.69, F:L.73, F:W.74, L:L.97 Hydrogen bonds: E:E.53

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Posson, D.J. et al., Molecular interactions involved in proton-dependent gating in KcsA potassium channels. J.Gen.Physiol. (2013)

Release Date

2013-10-30

Peptides

Fab light chain: ADGJ
Fab heavy chain: BEHK
pH-gated 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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Fab light chain

Fab heavy chain

pH-gated potassium channel KcsA

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