SMTL ID : 3k0d.2 (1 other biounit)

Crystal Structure of CNG mimicking NaK mutant, NaK-ETPP, K+ complex

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.95 Å

Oligo State

homo-tetramer

Ligands

4 x MPD: (4S)-2-METHYL-2,4-PENTANEDIOL(Non-functional Binders)

MPD.1: 5 residues within 4Å: Chain A: L.64, F.67 Chain C: F.11, I.15, F.76 6 PLIP interactions: 3 interactions with chain C, 3 interactions with chain A Hydrophobic interactions: C:F.11, C:I.15, C:F.76, A:L.64, A:F.67, A:F.67 MPD.6: 5 residues within 4Å: Chain B: L.64, F.67 Chain D: F.11, I.15, F.76 6 PLIP interactions: 3 interactions with chain D, 3 interactions with chain B Hydrophobic interactions: D:F.11, D:I.15, D:F.76, B:L.64, B:F.67, B:F.67 MPD.11: 5 residues within 4Å: Chain B: F.11, I.15, F.76 Chain C: L.64, F.67 6 PLIP interactions: 3 interactions with chain B, 3 interactions with chain C Hydrophobic interactions: B:F.11, B:I.15, B:F.76, C:L.64, C:F.67, C:F.67 MPD.16: 5 residues within 4Å: Chain A: F.11, I.15, F.76 Chain D: L.64, F.67 6 PLIP interactions: 3 interactions with chain A, 3 interactions with chain D Hydrophobic interactions: A:F.11, A:I.15, A:F.76, D:L.64, D:F.67, D:F.67

16 x K: POTASSIUM ION(Non-covalent)

K.2: 19 residues within 4Å: Chain A: T.46, V.47 Chain B: T.46, V.47 Chain C: T.46, V.47 Chain D: T.46, V.47 Ligands: K.3, K.5, K.7, K.8, K.10, K.12, K.13, K.15, K.17, K.18, K.20 Ligand excluded by PLIP K.3: 11 residues within 4Å: Chain A: T.46 Chain B: T.46 Chain C: T.46 Chain D: T.46 Ligands: K.2, K.7, K.8, K.12, K.13, K.17, K.18 Ligand excluded by PLIP K.4: 11 residues within 4Å: Chain A: G.48 Chain B: G.48 Chain C: G.48 Chain D: G.48 Ligands: K.5, K.9, K.10, K.14, K.15, K.19, K.20 Ligand excluded by PLIP K.5: 19 residues within 4Å: Chain A: V.47, G.48 Chain B: V.47, G.48 Chain C: V.47, G.48 Chain D: V.47, G.48 Ligands: K.2, K.4, K.7, K.9, K.10, K.12, K.14, K.15, K.17, K.19, K.20 Ligand excluded by PLIP K.7: 19 residues within 4Å: Chain A: T.46, V.47 Chain B: T.46, V.47 Chain C: T.46, V.47 Chain D: T.46, V.47 Ligands: K.2, K.3, K.5, K.8, K.10, K.12, K.13, K.15, K.17, K.18, K.20 Ligand excluded by PLIP K.8: 11 residues within 4Å: Chain A: T.46 Chain B: T.46 Chain C: T.46 Chain D: T.46 Ligands: K.2, K.3, K.7, K.12, K.13, K.17, K.18 Ligand excluded by PLIP K.9: 11 residues within 4Å: Chain A: G.48 Chain B: G.48 Chain C: G.48 Chain D: G.48 Ligands: K.4, K.5, K.10, K.14, K.15, K.19, K.20 Ligand excluded by PLIP K.10: 19 residues within 4Å: Chain A: V.47, G.48 Chain B: V.47, G.48 Chain C: V.47, G.48 Chain D: V.47, G.48 Ligands: K.2, K.4, K.5, K.7, K.9, K.12, K.14, K.15, K.17, K.19, K.20 Ligand excluded by PLIP K.12: 19 residues within 4Å: Chain A: T.46, V.47 Chain B: T.46, V.47 Chain C: T.46, V.47 Chain D: T.46, V.47 Ligands: K.2, K.3, K.5, K.7, K.8, K.10, K.13, K.15, K.17, K.18, K.20 Ligand excluded by PLIP K.13: 11 residues within 4Å: Chain A: T.46 Chain B: T.46 Chain C: T.46 Chain D: T.46 Ligands: K.2, K.3, K.7, K.8, K.12, K.17, K.18 Ligand excluded by PLIP K.14: 11 residues within 4Å: Chain A: G.48 Chain B: G.48 Chain C: G.48 Chain D: G.48 Ligands: K.4, K.5, K.9, K.10, K.15, K.19, K.20 Ligand excluded by PLIP K.15: 19 residues within 4Å: Chain A: V.47, G.48 Chain B: V.47, G.48 Chain C: V.47, G.48 Chain D: V.47, G.48 Ligands: K.2, K.4, K.5, K.7, K.9, K.10, K.12, K.14, K.17, K.19, K.20 Ligand excluded by PLIP K.17: 19 residues within 4Å: Chain A: T.46, V.47 Chain B: T.46, V.47 Chain C: T.46, V.47 Chain D: T.46, V.47 Ligands: K.2, K.3, K.5, K.7, K.8, K.10, K.12, K.13, K.15, K.18, K.20 Ligand excluded by PLIP K.18: 11 residues within 4Å: Chain A: T.46 Chain B: T.46 Chain C: T.46 Chain D: T.46 Ligands: K.2, K.3, K.7, K.8, K.12, K.13, K.17 Ligand excluded by PLIP K.19: 11 residues within 4Å: Chain A: G.48 Chain B: G.48 Chain C: G.48 Chain D: G.48 Ligands: K.4, K.5, K.9, K.10, K.14, K.15, K.20 Ligand excluded by PLIP K.20: 19 residues within 4Å: Chain A: V.47, G.48 Chain B: V.47, G.48 Chain C: V.47, G.48 Chain D: V.47, G.48 Ligands: K.2, K.4, K.5, K.7, K.9, K.10, K.12, K.14, K.15, K.17, K.19 Ligand excluded by PLIP

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Derebe, M.G. et al., Structural studies of ion permeation and Ca2+ blockage of a bacterial channel mimicking the cyclic nucleotide-gated channel pore. Proc.Natl.Acad.Sci.USA (2011)

Release Date

2011-01-12

Peptides

Potassium channel protein NaK: ABCD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

B
B

C
B

D
B

Membrane

We predict this structure to be a membrane protein.
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Potassium channel protein NaK

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