SMTL ID : 3p1q.1

Crystal structure of human 14-3-3 sigma C38N/N166H in complex with TASK-3 Peptide and stabilizer fusicoccin A

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.70 Å

Oligo State

homo-dimer

Ligands

2 x LYS- ARG- ARG- LYS- SEP- VAL: 6-mer peptide from Potassium channel subfamily K member 9(Non-covalent)

LYS-ARG-ARG-LYS-SEP-VAL.1: 18 residues within 4Å: Chain A: K.54, R.61, R.65, K.127, R.134, Y.135, E.138, G.176, L.179, N.180, V.183, E.187, L.227, D.230, N.231, L.234, W.235 Ligands: FSC.2 25 PLIP interactions: 25 interactions with chain A Hydrophobic interactions: A:L.179, A:V.183, A:L.227, A:D.230, A:L.234, A:W.235 Hydrogen bonds: A:R.61, A:R.134, A:E.138, A:E.138, A:N.180, A:N.180, A:N.180, A:N.231, A:N.231 Water bridges: A:K.54, A:D.230, A:D.230 Salt bridges: A:K.54, A:K.54, A:R.61, A:K.127, A:R.134, A:E.187, A:E.187 LYS-ARG-ARG-LYS-SEP-VAL.7: 18 residues within 4Å: Chain B: K.54, R.61, R.65, K.127, R.134, Y.135, E.138, G.176, L.179, N.180, V.183, E.187, L.227, D.230, N.231, L.234, W.235 Ligands: FSC.8 26 PLIP interactions: 26 interactions with chain B Hydrophobic interactions: B:L.179, B:V.183, B:L.227, B:D.230, B:L.234, B:W.235 Hydrogen bonds: B:R.61, B:R.134, B:Y.135, B:E.138, B:N.180, B:N.180, B:D.230, B:N.231, B:N.231 Water bridges: B:K.54, B:E.187, B:D.230, B:D.230 Salt bridges: B:K.54, B:K.54, B:R.61, B:K.127, B:R.134, B:E.187, B:E.187

2 x FSC: FUSICOCCIN(Non-covalent)

FSC.2: 16 residues within 4Å: Chain A: E.19, N.47, L.48, S.50, V.51, F.124, K.127, M.128, P.172, I.173, G.176, D.220, L.223, I.224 Ligands: LYS-ARG-ARG-LYS-SEP-VAL.1, CA.6 10 PLIP interactions: 10 interactions with chain A Hydrophobic interactions: A:N.47, A:L.48, A:F.124, A:I.173, A:L.223, A:I.224 Water bridges: A:N.47, A:N.47, A:N.47 Salt bridges: A:K.219 FSC.8: 16 residues within 4Å: Chain B: E.19, N.47, L.48, S.50, V.51, F.124, K.127, M.128, P.172, I.173, G.176, D.220, L.223, I.224 Ligands: LYS-ARG-ARG-LYS-SEP-VAL.7, CA.12 10 PLIP interactions: 10 interactions with chain B Hydrophobic interactions: B:N.47, B:L.48, B:F.124, B:I.173, B:L.223, B:I.224 Water bridges: B:N.47, B:N.47, B:N.47 Salt bridges: B:K.219

2 x CL: CHLORIDE ION(Non-functional Binders)

CL.3: 3 residues within 4Å: Chain A: K.14 Chain B: E.88, Y.89 Ligand excluded by PLIP CL.9: 3 residues within 4Å: Chain A: E.88, Y.89 Chain B: K.14 Ligand excluded by PLIP

4 x MG: MAGNESIUM ION(Non-covalent)

MG.4: 2 residues within 4Å: Chain A: E.40, E.115 5 PLIP interactions: 3 interactions with chain A, 2 Ligand-Water interactions Metal complexes: A:E.40, A:E.40, A:E.115, H2O.6, H2O.7 MG.5: 1 residues within 4Å: Chain A: E.7 3 PLIP interactions: 1 interactions with chain A, 2 Ligand-Water interactions Metal complexes: A:E.7, H2O.1, H2O.4 MG.10: 2 residues within 4Å: Chain B: E.40, E.115 5 PLIP interactions: 3 interactions with chain B, 2 Ligand-Water interactions Metal complexes: B:E.40, B:E.40, B:E.115, H2O.14, H2O.15 MG.11: 1 residues within 4Å: Chain B: E.7 3 PLIP interactions: 1 interactions with chain B, 2 Ligand-Water interactions Metal complexes: B:E.7, H2O.9, H2O.11

2 x CA: CALCIUM ION(Non-covalent)

CA.6: 3 residues within 4Å: Chain A: S.50, V.51 Ligands: FSC.2 2 PLIP interactions: 1 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:S.50, H2O.8 CA.12: 3 residues within 4Å: Chain B: S.50, V.51 Ligands: FSC.8 2 PLIP interactions: 1 interactions with chain B, 1 Ligand-Water interactions Metal complexes: B:S.50, H2O.16

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Anders, C. et al., A semisynthetic fusicoccane stabilizes a protein-protein interaction and enhances the expression of K+ channels at the cell surface. Chem. Biol. (2013)

Release Date

2011-10-12

Peptides

14-3-3 protein sigma: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
A

14-3-3 protein sigma

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