SMTL ID : 2hfe.1

Rb+ complex of a K channel with an amide to ester substitution in the selectivity filter

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.25 Å

Oligo State

hetero-oligomer

Ligands

20 x RB: RUBIDIUM ION(Non-covalent)(Non-functional Binders)

RB.1: 7 residues within 4Å: Chain C: Y.57 Chain G: Y.57 Chain K: Y.57 Chain O: Y.57 Ligands: RB.8, RB.15, RB.22 Ligand excluded by PLIP RB.2: 15 residues within 4Å: Chain C: V.55, G.56 Chain G: V.55, G.56 Chain K: V.55, G.56 Chain O: V.55, G.56 Ligands: RB.3, RB.9, RB.10, RB.16, RB.17, RB.23, RB.24 Ligand excluded by PLIP RB.3: 19 residues within 4Å: Chain C: T.54, V.55 Chain G: T.54, V.55 Chain K: T.54, V.55 Chain O: T.54, V.55 Ligands: RB.2, RB.4, RB.9, RB.10, RB.11, RB.16, RB.17, RB.18, RB.23, RB.24, RB.25 Ligand excluded by PLIP RB.4: 11 residues within 4Å: Chain C: T.54 Chain G: T.54 Chain K: T.54 Chain O: T.54 Ligands: RB.3, RB.10, RB.11, RB.17, RB.18, RB.24, RB.25 Ligand excluded by PLIP RB.5: 3 residues within 4Å: Ligands: RB.12, RB.19, RB.26 Ligand excluded by PLIP RB.8: 7 residues within 4Å: Chain C: Y.57 Chain G: Y.57 Chain K: Y.57 Chain O: Y.57 Ligands: RB.1, RB.15, RB.22 Ligand excluded by PLIP RB.9: 15 residues within 4Å: Chain C: V.55, G.56 Chain G: V.55, G.56 Chain K: V.55, G.56 Chain O: V.55, G.56 Ligands: RB.2, RB.3, RB.10, RB.16, RB.17, RB.23, RB.24 Ligand excluded by PLIP RB.10: 19 residues within 4Å: Chain C: T.54, V.55 Chain G: T.54, V.55 Chain K: T.54, V.55 Chain O: T.54, V.55 Ligands: RB.2, RB.3, RB.4, RB.9, RB.11, RB.16, RB.17, RB.18, RB.23, RB.24, RB.25 Ligand excluded by PLIP RB.11: 11 residues within 4Å: Chain C: T.54 Chain G: T.54 Chain K: T.54 Chain O: T.54 Ligands: RB.3, RB.4, RB.10, RB.17, RB.18, RB.24, RB.25 Ligand excluded by PLIP RB.12: 3 residues within 4Å: Ligands: RB.5, RB.19, RB.26 Ligand excluded by PLIP RB.15: 7 residues within 4Å: Chain C: Y.57 Chain G: Y.57 Chain K: Y.57 Chain O: Y.57 Ligands: RB.1, RB.8, RB.22 Ligand excluded by PLIP RB.16: 15 residues within 4Å: Chain C: V.55, G.56 Chain G: V.55, G.56 Chain K: V.55, G.56 Chain O: V.55, G.56 Ligands: RB.2, RB.3, RB.9, RB.10, RB.17, RB.23, RB.24 Ligand excluded by PLIP RB.17: 19 residues within 4Å: Chain C: T.54, V.55 Chain G: T.54, V.55 Chain K: T.54, V.55 Chain O: T.54, V.55 Ligands: RB.2, RB.3, RB.4, RB.9, RB.10, RB.11, RB.16, RB.18, RB.23, RB.24, RB.25 Ligand excluded by PLIP RB.18: 11 residues within 4Å: Chain C: T.54 Chain G: T.54 Chain K: T.54 Chain O: T.54 Ligands: RB.3, RB.4, RB.10, RB.11, RB.17, RB.24, RB.25 Ligand excluded by PLIP RB.19: 3 residues within 4Å: Ligands: RB.5, RB.12, RB.26 Ligand excluded by PLIP RB.22: 7 residues within 4Å: Chain C: Y.57 Chain G: Y.57 Chain K: Y.57 Chain O: Y.57 Ligands: RB.1, RB.8, RB.15 Ligand excluded by PLIP RB.23: 15 residues within 4Å: Chain C: V.55, G.56 Chain G: V.55, G.56 Chain K: V.55, G.56 Chain O: V.55, G.56 Ligands: RB.2, RB.3, RB.9, RB.10, RB.16, RB.17, RB.24 Ligand excluded by PLIP RB.24: 19 residues within 4Å: Chain C: T.54, V.55 Chain G: T.54, V.55 Chain K: T.54, V.55 Chain O: T.54, V.55 Ligands: RB.2, RB.3, RB.4, RB.9, RB.10, RB.11, RB.16, RB.17, RB.18, RB.23, RB.25 Ligand excluded by PLIP RB.25: 11 residues within 4Å: Chain C: T.54 Chain G: T.54 Chain K: T.54 Chain O: T.54 Ligands: RB.3, RB.4, RB.10, RB.11, RB.17, RB.18, RB.24 Ligand excluded by PLIP RB.26: 3 residues within 4Å: Ligands: RB.5, RB.12, RB.19 Ligand excluded by PLIP

4 x GOA: GLYCOLIC ACID(Covalent)

GOA.6: 7 residues within 4Å: Chain C: E.50, G.56, Y.57 Chain D: D.1, L.2, Y.3 Chain K: Y.57 1 PLIP interactions: 1 interactions with chain D Hydrogen bonds: D:D.1 GOA.13: 7 residues within 4Å: Chain G: E.50, G.56, Y.57 Chain H: D.1, L.2, Y.3 Chain O: Y.57 1 PLIP interactions: 1 interactions with chain H Hydrogen bonds: H:D.1 GOA.20: 7 residues within 4Å: Chain G: Y.57 Chain K: E.50, G.56, Y.57 Chain L: D.1, L.2, Y.3 1 PLIP interactions: 1 interactions with chain L Hydrogen bonds: L:D.1 GOA.27: 7 residues within 4Å: Chain C: Y.57 Chain O: E.50, G.56, Y.57 Chain P: D.1, L.2, Y.3 1 PLIP interactions: 1 interactions with chain P Hydrogen bonds: P:D.1

4 x B3H: (2S)-2-(BUTYRYLOXY)-3-HYDROXYPROPYL NONANOATE(Non-covalent)

B3H.7: 6 residues within 4Å: Chain D: L.7, R.10, L.11, V.14 Chain K: P.42, C.49 5 PLIP interactions: 4 interactions with chain D, 1 interactions with chain J Hydrophobic interactions: D:L.7, D:L.11, D:V.14 Hydrogen bonds: D:R.10, J:E.53 B3H.14: 6 residues within 4Å: Chain H: L.7, R.10, L.11, V.14 Chain O: P.42, C.49 5 PLIP interactions: 4 interactions with chain H, 1 interactions with chain N Hydrophobic interactions: H:L.7, H:L.11, H:V.14 Hydrogen bonds: H:R.10, N:E.53 B3H.21: 6 residues within 4Å: Chain G: P.42, C.49 Chain L: L.7, R.10, L.11, V.14 5 PLIP interactions: 4 interactions with chain L, 1 interactions with chain F Hydrophobic interactions: L:L.7, L:L.11, L:V.14 Hydrogen bonds: L:R.10, F:E.53 B3H.28: 6 residues within 4Å: Chain C: P.42, C.49 Chain P: L.7, R.10, L.11, V.14 5 PLIP interactions: 4 interactions with chain P, 1 interactions with chain B Hydrophobic interactions: P:L.7, P:L.11, P:V.14 Hydrogen bonds: P:R.10, B:E.53

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Valiyaveetil, F.I. et al., Structural and Functional Consequences of an Amide-to-Ester Substitution in the Selectivity Filter of a Potassium Channel. J.Am.Chem.Soc. (2006)

Release Date

2006-09-12

Peptides

FAB Heavy Chain: AEIM
FAB Light Chain: BFJN
KcsA channel: CGKO
KcsA channel: DHLP

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

E
A

I
A

M
A

B
B

F
B

J
B

N
B

C
C

G
C

K
C

O
C

D
D

H
D

L
D

P
D

Membrane

We predict this structure to be a membrane protein.
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FAB Heavy Chain

FAB Light Chain

KcsA channel

KcsA channel

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