SMTL ID : 9kun.1 (1 other biounit)

Crystal structure of ligand-free trypanosome alternative oxidase

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.70 Å

Oligo State

homo-dimer

Ligands

4 x FE: FE (III) ION(Non-covalent)

FE.1: 6 residues within 4Å: Chain A: E.94, E.133, H.136, E.237 Ligands: FE.2, OH.3 5 PLIP interactions: 4 interactions with chain A, 1 Ligand-Ligand interactions Metal complexes: A:E.94, A:E.94, A:E.133, A:E.237, OH.3 FE.2: 4 residues within 4Å: Chain A: E.133, E.184, E.237 Ligands: FE.1 4 PLIP interactions: 4 interactions with chain A Metal complexes: A:E.133, A:E.184, A:E.184, A:E.237 FE.5: 6 residues within 4Å: Chain B: E.94, E.133, H.136, E.237 Ligands: FE.6, OH.7 5 PLIP interactions: 4 interactions with chain B, 1 Ligand-Ligand interactions Metal complexes: B:E.94, B:E.94, B:E.133, B:E.237, OH.7 FE.6: 6 residues within 4Å: Chain B: A.97, E.133, E.184, E.237 Ligands: FE.5, OH.7 5 PLIP interactions: 4 interactions with chain B, 1 Ligand-Ligand interactions Metal complexes: B:E.133, B:E.184, B:E.184, B:E.237, OH.7

2 x OH: HYDROXIDE ION(Non-covalent)

OH.3: 5 residues within 4Å: Chain A: E.94, A.187, Y.191, E.237 Ligands: FE.1 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:Y.191 OH.7: 7 residues within 4Å: Chain B: E.94, E.133, E.184, A.187, E.237 Ligands: FE.5, FE.6 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:E.184

2 x BOG: octyl beta-D-glucopyranoside(Non-covalent)

BOG.4: 2 residues within 4Å: Chain A: T.65, W.68 No protein-ligand interaction detected (PLIP) BOG.8: 2 residues within 4Å: Chain B: R.64, W.68 2 PLIP interactions: 2 interactions with chain B Hydrophobic interactions: B:W.68 Hydrogen bonds: B:R.64

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Ebiloma, G.U. et al., Uncovering the Unusual Inhibition Mechanism of a Trypanosome Alternative Oxidase Inhibitor Displaying Broad-Spectrum Activity against African Animal Trypanosomes. J.Med.Chem. (2025)

Release Date

2025-09-10

Peptides

Alternative oxidase, mitochondrial: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Alternative oxidase, mitochondrial

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