SMTL ID : 2p7t.1 (2 other biounits)

Crystal Structure of KcsA mutant

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.05 Å

Oligo State

homo-tetramer

Ligands

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

K.1: 7 residues within 4Å: Ligands: K.2, K.8, K.9, K.15, K.16, K.22, K.23 Ligand excluded by PLIP K.2: 15 residues within 4Å: Chain A: Y.57 Chain B: Y.57 Chain C: Y.57 Chain D: Y.57 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 A: G.56, Y.57 Chain B: G.56, Y.57 Chain C: G.56, Y.57 Chain D: G.56, Y.57 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 A: V.55, G.56 Chain B: V.55, G.56 Chain C: V.55, G.56 Chain D: V.55, G.56 Ligands: K.3, K.5, K.10, K.11, K.12, K.17, K.18, K.19, K.24, K.25, K.26 Ligand excluded by PLIP K.5: 19 residues within 4Å: Chain A: T.54, V.55 Chain B: T.54, V.55 Chain C: T.54, V.55 Chain D: T.54, V.55 Ligands: K.4, K.6, K.11, K.12, K.13, K.18, K.19, K.20, K.25, K.26, K.27 Ligand excluded by PLIP K.6: 11 residues within 4Å: Chain A: T.54 Chain B: T.54 Chain C: T.54 Chain D: T.54 Ligands: K.5, K.12, K.13, K.19, K.20, K.26, K.27 Ligand excluded by PLIP K.8: 7 residues within 4Å: Ligands: K.1, K.2, K.9, K.15, K.16, K.22, K.23 Ligand excluded by PLIP K.9: 15 residues within 4Å: Chain A: Y.57 Chain B: Y.57 Chain C: Y.57 Chain D: Y.57 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 A: G.56, Y.57 Chain B: G.56, Y.57 Chain C: G.56, Y.57 Chain D: G.56, Y.57 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 A: V.55, G.56 Chain B: V.55, G.56 Chain C: V.55, G.56 Chain D: V.55, G.56 Ligands: K.3, K.4, K.5, K.10, K.12, K.17, K.18, K.19, K.24, K.25, K.26 Ligand excluded by PLIP K.12: 19 residues within 4Å: Chain A: T.54, V.55 Chain B: T.54, V.55 Chain C: T.54, V.55 Chain D: T.54, V.55 Ligands: K.4, K.5, K.6, K.11, K.13, K.18, K.19, K.20, K.25, K.26, K.27 Ligand excluded by PLIP K.13: 11 residues within 4Å: Chain A: T.54 Chain B: T.54 Chain C: T.54 Chain D: T.54 Ligands: K.5, K.6, K.12, K.19, K.20, K.26, K.27 Ligand excluded by PLIP K.15: 7 residues within 4Å: Ligands: K.1, K.2, K.8, K.9, K.16, K.22, K.23 Ligand excluded by PLIP K.16: 15 residues within 4Å: Chain A: Y.57 Chain B: Y.57 Chain C: Y.57 Chain D: Y.57 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 A: G.56, Y.57 Chain B: G.56, Y.57 Chain C: G.56, Y.57 Chain D: G.56, Y.57 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 A: V.55, G.56 Chain B: V.55, G.56 Chain C: V.55, G.56 Chain D: V.55, G.56 Ligands: K.3, K.4, K.5, K.10, K.11, K.12, K.17, K.19, K.24, K.25, K.26 Ligand excluded by PLIP K.19: 19 residues within 4Å: Chain A: T.54, V.55 Chain B: T.54, V.55 Chain C: T.54, V.55 Chain D: T.54, V.55 Ligands: K.4, K.5, K.6, K.11, K.12, K.13, K.18, K.20, K.25, K.26, K.27 Ligand excluded by PLIP K.20: 11 residues within 4Å: Chain A: T.54 Chain B: T.54 Chain C: T.54 Chain D: T.54 Ligands: K.5, K.6, K.12, K.13, K.19, K.26, K.27 Ligand excluded by PLIP K.22: 7 residues within 4Å: Ligands: K.1, K.2, K.8, K.9, K.15, K.16, K.23 Ligand excluded by PLIP K.23: 15 residues within 4Å: Chain A: Y.57 Chain B: Y.57 Chain C: Y.57 Chain D: Y.57 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 A: G.56, Y.57 Chain B: G.56, Y.57 Chain C: G.56, Y.57 Chain D: G.56, Y.57 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 A: V.55, G.56 Chain B: V.55, G.56 Chain C: V.55, G.56 Chain D: V.55, G.56 Ligands: K.3, K.4, K.5, K.10, K.11, K.12, K.17, K.18, K.19, K.24, K.26 Ligand excluded by PLIP K.26: 19 residues within 4Å: Chain A: T.54, V.55 Chain B: T.54, V.55 Chain C: T.54, V.55 Chain D: T.54, V.55 Ligands: K.4, K.5, K.6, K.11, K.12, K.13, K.18, K.19, K.20, K.25, K.27 Ligand excluded by PLIP K.27: 11 residues within 4Å: Chain A: T.54 Chain B: T.54 Chain C: T.54 Chain D: T.54 Ligands: K.5, K.6, K.12, K.13, K.19, K.20, K.26 Ligand excluded by PLIP

4 x 1EM: (1S)-2-HYDROXY-1-[(NONANOYLOXY)METHYL]ETHYL MYRISTATE(Non-covalent)

1EM.7: 12 residues within 4Å: Chain A: V.63, L.65, R.68, V.72 Chain C: L.20, A.21, S.23, Y.24, Y.41, P.42, L.45, W.46 8 PLIP interactions: 6 interactions with chain A, 2 interactions with chain C Hydrophobic interactions: A:L.65, A:L.65, A:V.72, A:V.72, C:L.20, C:Y.24 Hydrogen bonds: A:L.65 Salt bridges: A:R.68 1EM.14: 12 residues within 4Å: Chain B: V.63, L.65, R.68, V.72 Chain D: L.20, A.21, S.23, Y.24, Y.41, P.42, L.45, W.46 8 PLIP interactions: 6 interactions with chain B, 2 interactions with chain D Hydrophobic interactions: B:L.65, B:L.65, B:V.72, B:V.72, D:L.20, D:Y.24 Hydrogen bonds: B:L.65 Salt bridges: B:R.68 1EM.21: 12 residues within 4Å: Chain B: L.20, A.21, S.23, Y.24, Y.41, P.42, L.45, W.46 Chain C: V.63, L.65, R.68, V.72 8 PLIP interactions: 6 interactions with chain C, 2 interactions with chain B Hydrophobic interactions: C:L.65, C:L.65, C:V.72, C:V.72, B:L.20, B:Y.24 Hydrogen bonds: C:L.65 Salt bridges: C:R.68 1EM.28: 12 residues within 4Å: Chain A: L.20, A.21, S.23, Y.24, Y.41, P.42, L.45, W.46 Chain D: V.63, L.65, R.68, V.72 8 PLIP interactions: 6 interactions with chain D, 2 interactions with chain A Hydrophobic interactions: D:L.65, D:L.65, D:V.72, D:V.72, A:L.20, A:Y.24 Hydrogen bonds: D:L.65 Salt bridges: D:R.68

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Cordero-Morales, J.F. et al., Crystal Structure of KcsA mutant. To be Published

Release Date

2007-10-09

Peptides

Voltage-gated potassium channel: ABCD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
C

B
C

C
C

D
C

Membrane

We predict this structure to be a membrane protein.
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Voltage-gated potassium channel

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