SMTL ID : 5wc5.1 (1 other biounit)

Structural insights into the potency of SK/IK channel positive modulators

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.30 Å

Oligo State

hetero-1-1-mer

Ligands

6 x SO4: SULFATE ION(Non-functional Binders)

SO4.1: 2 residues within 4Å: Chain A: A.53, R.56 2 PLIP interactions: 2 interactions with chain A Water bridges: A:A.53 Salt bridges: A:R.56 SO4.2: 1 residues within 4Å: Chain A: H.52 1 PLIP interactions: 1 interactions with chain A Salt bridges: A:H.52 SO4.3: 6 residues within 4Å: Chain A: R.35, K.57, H.58, K.61 Ligands: SO4.4, GOL.5 4 PLIP interactions: 4 interactions with chain A Salt bridges: A:R.35, A:K.57, A:H.58, A:K.61 SO4.4: 4 residues within 4Å: Chain A: K.57, R.60, K.61 Ligands: SO4.3 3 PLIP interactions: 3 interactions with chain A Salt bridges: A:K.57, A:R.60, A:K.61 SO4.8: 3 residues within 4Å: Chain A: K.8 Chain B: K.76, T.78 3 PLIP interactions: 2 interactions with chain B, 1 interactions with chain A Hydrogen bonds: B:T.78 Salt bridges: B:K.76, A:K.8 SO4.9: 1 residues within 4Å: Chain B: K.29 1 PLIP interactions: 1 interactions with chain B Salt bridges: B:K.29

1 x GOL: GLYCEROL(Non-functional Binders)

GOL.5: 7 residues within 4Å: Chain A: L.39, K.42, N.43, K.54, K.57, H.58 Ligands: SO4.3 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:N.43, A:K.54, A:K.57, A:K.57

2 x CA: CALCIUM ION(Non-covalent)

CA.6: 5 residues within 4Å: Chain B: D.19, D.21, D.23, T.25, E.30 5 PLIP interactions: 4 interactions with chain B, 1 Ligand-Water interactions Metal complexes: B:D.19, B:D.21, B:D.23, B:E.30, H2O.5 CA.7: 5 residues within 4Å: Chain B: D.55, D.57, N.59, T.61, E.66 5 PLIP interactions: 4 interactions with chain B, 1 Ligand-Water interactions Metal complexes: B:D.55, B:D.57, B:T.61, B:E.66, H2O.4

1 x AJV: 7-fluoro-3-(hydroxyamino)-2H-indol-2-one(Non-covalent)

AJV.10: 11 residues within 4Å: Chain A: A.83, L.86, V.87 Chain B: F.18, I.26, L.31, M.50, V.54, I.62, F.67, M.70 5 PLIP interactions: 3 interactions with chain A, 2 interactions with chain B Hydrophobic interactions: A:L.86, A:V.87, B:F.18, B:F.67 Hydrogen bonds: A:A.83

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Nam, Y.W. et al., Structural insights into the potency of SK channel positive modulators. Sci Rep (2017)

Release Date

2017-12-20

Peptides

Small conductance calcium-activated potassium channel protein 2: A
Calmodulin-1: B

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

B
R

Small conductance calcium-activated potassium channel protein 2

Calmodulin-1

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