SMTL ID : 5ebm.1

KcsA T75G mutant in the nonconductive state

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.50 Å

Oligo State

hetero-4-4-4-mer

Ligands

4 x DGA: DIACYL GLYCEROL(Covalent)

DGA.1: 11 residues within 4Å: Chain C: L.86, R.89 Chain K: E.53 Chain L: L.41, S.44, Y.45, Y.62, P.63, L.66, W.67, V.70 9 PLIP interactions: 7 interactions with chain L, 1 interactions with chain C, 1 interactions with chain K Hydrophobic interactions: L:Y.45, L:Y.45, L:Y.62, L:Y.62, L:L.66, L:W.67, L:V.70 Salt bridges: C:R.89 Hydrogen bonds: K:E.53 DGA.6: 11 residues within 4Å: Chain F: L.86, R.89 Chain H: E.53 Chain I: L.41, S.44, Y.45, Y.62, P.63, L.66, W.67, V.70 9 PLIP interactions: 7 interactions with chain I, 1 interactions with chain F, 1 interactions with chain H Hydrophobic interactions: I:Y.45, I:Y.45, I:Y.62, I:Y.62, I:L.66, I:W.67, I:V.70 Salt bridges: F:R.89 Hydrogen bonds: H:E.53 DGA.11: 11 residues within 4Å: Chain B: E.53 Chain C: L.41, S.44, Y.45, Y.62, P.63, L.66, W.67, V.70 Chain I: L.86, R.89 9 PLIP interactions: 1 interactions with chain B, 1 interactions with chain I, 7 interactions with chain C Hydrogen bonds: B:E.53 Salt bridges: I:R.89 Hydrophobic interactions: C:Y.45, C:Y.45, C:Y.62, C:Y.62, C:L.66, C:W.67, C:V.70 DGA.16: 11 residues within 4Å: Chain E: E.53 Chain F: L.41, S.44, Y.45, Y.62, P.63, L.66, W.67, V.70 Chain L: L.86, R.89 9 PLIP interactions: 7 interactions with chain F, 1 interactions with chain E, 1 interactions with chain L Hydrophobic interactions: F:Y.45, F:Y.45, F:Y.62, F:Y.62, F:L.66, F:W.67, F:V.70 Hydrogen bonds: E:E.53 Salt bridges: L:R.89

4 x F09: NONAN-1-OL(Non-covalent)

F09.2: 4 residues within 4Å: Chain A: R.57 Chain C: L.46, W.87, V.91 4 PLIP interactions: 3 interactions with chain C, 1 interactions with chain A Hydrophobic interactions: C:L.46, C:W.87, C:V.91 Hydrogen bonds: A:R.57 F09.7: 4 residues within 4Å: Chain D: R.57 Chain F: L.46, W.87, V.91 4 PLIP interactions: 3 interactions with chain F, 1 interactions with chain D Hydrophobic interactions: F:L.46, F:W.87, F:V.91 Hydrogen bonds: D:R.57 F09.12: 4 residues within 4Å: Chain G: R.57 Chain I: L.46, W.87, V.91 4 PLIP interactions: 3 interactions with chain I, 1 interactions with chain G Hydrophobic interactions: I:L.46, I:W.87, I:V.91 Hydrogen bonds: G:R.57 F09.17: 4 residues within 4Å: Chain J: R.57 Chain L: L.46, W.87, V.91 4 PLIP interactions: 1 interactions with chain J, 3 interactions with chain L Hydrogen bonds: J:R.57 Hydrophobic interactions: L:L.46, L:W.87, L:V.91

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

K.3: 7 residues within 4Å: Chain C: G.77 Chain F: G.77 Chain I: G.77 Chain L: G.77 Ligands: K.8, K.13, K.18 4 PLIP interactions: 1 interactions with chain F, 1 interactions with chain I, 1 interactions with chain L, 1 interactions with chain C Metal complexes: F:G.77, I:G.77, L:G.77, C:G.77 K.4: 7 residues within 4Å: Chain C: G.75 Chain F: G.75 Chain I: G.75 Chain L: G.75 Ligands: K.9, K.14, K.19 4 PLIP interactions: 1 interactions with chain L, 1 interactions with chain C, 1 interactions with chain F, 1 interactions with chain I Metal complexes: L:G.75, C:G.75, F:G.75, I:G.75 K.5: 3 residues within 4Å: Ligands: K.10, K.15, K.20 No protein-ligand interaction detected (PLIP) K.8: 7 residues within 4Å: Chain C: G.77 Chain F: G.77 Chain I: G.77 Chain L: G.77 Ligands: K.3, K.13, K.18 4 PLIP interactions: 1 interactions with chain F, 1 interactions with chain I, 1 interactions with chain L, 1 interactions with chain C Metal complexes: F:G.77, I:G.77, L:G.77, C:G.77 K.9: 7 residues within 4Å: Chain C: G.75 Chain F: G.75 Chain I: G.75 Chain L: G.75 Ligands: K.4, K.14, K.19 4 PLIP interactions: 1 interactions with chain L, 1 interactions with chain C, 1 interactions with chain F, 1 interactions with chain I Metal complexes: L:G.75, C:G.75, F:G.75, I:G.75 K.10: 3 residues within 4Å: Ligands: K.5, K.15, K.20 No protein-ligand interaction detected (PLIP) K.13: 7 residues within 4Å: Chain C: G.77 Chain F: G.77 Chain I: G.77 Chain L: G.77 Ligands: K.3, K.8, K.18 4 PLIP interactions: 1 interactions with chain F, 1 interactions with chain I, 1 interactions with chain L, 1 interactions with chain C Metal complexes: F:G.77, I:G.77, L:G.77, C:G.77 K.14: 7 residues within 4Å: Chain C: G.75 Chain F: G.75 Chain I: G.75 Chain L: G.75 Ligands: K.4, K.9, K.19 4 PLIP interactions: 1 interactions with chain L, 1 interactions with chain C, 1 interactions with chain F, 1 interactions with chain I Metal complexes: L:G.75, C:G.75, F:G.75, I:G.75 K.15: 3 residues within 4Å: Ligands: K.5, K.10, K.20 No protein-ligand interaction detected (PLIP) K.18: 7 residues within 4Å: Chain C: G.77 Chain F: G.77 Chain I: G.77 Chain L: G.77 Ligands: K.3, K.8, K.13 4 PLIP interactions: 1 interactions with chain L, 1 interactions with chain I, 1 interactions with chain F, 1 interactions with chain C Metal complexes: L:G.77, I:G.77, F:G.77, C:G.77 K.19: 7 residues within 4Å: Chain C: G.75 Chain F: G.75 Chain I: G.75 Chain L: G.75 Ligands: K.4, K.9, K.14 4 PLIP interactions: 1 interactions with chain C, 1 interactions with chain F, 1 interactions with chain I, 1 interactions with chain L Metal complexes: C:G.75, F:G.75, I:G.75, L:G.75 K.20: 3 residues within 4Å: Ligands: K.5, K.10, K.15 No protein-ligand interaction detected (PLIP)

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Matulef, K. et al., Individual Ion Binding Sites in the K(+) Channel Play Distinct Roles in C-type Inactivation and in Recovery from Inactivation. Structure (2016)

Release Date

2016-04-20

Peptides

Antibody Fab Fragment Light Chain: ADGJ
Antibody Fab Fragment Light 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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Antibody Fab Fragment Light Chain

Antibody Fab Fragment Light Chain

pH-gated potassium channel KcsA

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