SMTL ID : 8ssv.2 (1 other biounit)

Crystal structure of Grp94 N-terminal domain bound to the purine inhibitor PU-H71.

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.72 Å

Oligo State

monomer

Ligands

1 x H71: 8-[(6-IODO-1,3-BENZODIOXOL-5-YL)THIO]-9-[3-(ISOPROPYLAMINO)PROPYL]-9H-PURIN-6-AMINE(Non-covalent)

H71.1: 13 residues within 4Å: Chain A: N.43, A.47, D.85, G.89, M.90, E.94, N.98, G.132, F.135, Y.136, V.147, W.159, T.181 9 PLIP interactions: 9 interactions with chain A Hydrophobic interactions: A:N.98, A:Y.136 Hydrogen bonds: A:N.43, A:D.85, A:T.181 Water bridges: A:A.44, A:D.85, A:G.89 pi-Stacking: A:F.135

2 x CA: CALCIUM ION(Non-covalent)

CA.2: 3 residues within 4Å: Chain A: S.45, D.46, D.49 2 PLIP interactions: 2 interactions with chain A Metal complexes: A:S.45, A:D.49 CA.9: 2 residues within 4Å: Chain A: N.152 Ligands: ACT.8 2 PLIP interactions: 1 interactions with chain A, 1 Ligand-Ligand interactions Metal complexes: A:N.152, ACT.8

2 x ACT: ACETATE ION(Non-functional Binders)

ACT.3: 3 residues within 4Å: Chain A: K.71, V.229, W.232 4 PLIP interactions: 4 interactions with chain A Hydrophobic interactions: A:V.229 Hydrogen bonds: A:W.232 Water bridges: A:Y.216 Salt bridges: A:K.71 ACT.8: 5 residues within 4Å: Chain A: N.60, A.63, G.64, N.152 Ligands: CA.9 2 PLIP interactions: 2 interactions with chain A Hydrophobic interactions: A:A.63 Hydrogen bonds: A:N.60

1 x PG4: TETRAETHYLENE GLYCOL(Non-functional Binders)

PG4.4: 5 residues within 4Å: Chain A: T.148, R.173, T.176, T.184 Ligands: PEG.6 5 PLIP interactions: 5 interactions with chain A Hydrogen bonds: A:T.148, A:R.173, A:R.173, A:T.176, A:T.176

2 x PEG: DI(HYDROXYETHYL)ETHER(Non-functional Binders)

PEG.5: 4 residues within 4Å: Chain A: K.73, W.218, W.232 Ligands: PEG.6 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:K.73 PEG.6: 5 residues within 4Å: Chain A: K.73, H.82, T.84 Ligands: PG4.4, PEG.5 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:K.73 Water bridges: A:H.82

1 x MG: MAGNESIUM ION(Non-covalent)

MG.7: 3 residues within 4Å: Chain A: D.49, R.52, F.213 2 PLIP interactions: 1 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:D.49, H2O.2

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Que, N.L.S. et al., Selective Inhibition of hsp90 Paralogs: Uncovering the Role of Helix 1 in Grp94-Selective Ligand Binding. Proteins (2025)

Release Date

2024-11-06

Peptides

Endoplasmin: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

Endoplasmin

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