› 5h5r

X-ray diffraction
1.2Å resolution

Crystal structure of human GPX4 in complex with GXpep-2

Released:
DOI: 10.2210/pdb5h5r/pdb
PDB entry 5h5r coloured by chain, front view.
PDB entry 5h5r coloured by chain, side view.
PDB entry 5h5r coloured by chain, top view.
Source organisms:
Primary publication:
Discovery of GPX4 inhibitory peptides from random peptide T7 phage display and subsequent structural analysis.
Sakamoto K, Sogabe S, Kamada Y, Matsumoto SI, Kadotani A, Sakamoto JI, Tani A
Biochem Biophys Res Commun 482 195-201 (2017)
PMID: 27836545

Function and Biology Details

Reactions catalysed: 
2 glutathione + a hydroperoxy-fatty-acyl-[lipid] = glutathione disulfide + a hydroxy-fatty-acyl-[lipid] + H(2)O
2 glutathione + H(2)O(2) = glutathione disulfide + 2 H(2)O
Biochemical function:
Biological process:
Cellular component:
  • not assigned
Sequence domains:

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-153274 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Phospholipid hydroperoxide glutathione peroxidase GPX4 Chain: A
Molecule details ›
Chain: A
Length: 169 amino acids
Theoretical weight: 19.42 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P36969 (Residues: 29-197; Coverage: 86%)
Gene name: GPX4
Sequence domains: Glutathione peroxidase
Structure domains: Glutaredoxin
GXpep-2 Chain: B
Molecule details ›
Chain: B
Length: 15 amino acids
Theoretical weight: 1.73 KDa
Source organism: Escherichia phage T7
Expression system: Not provided

Ligands and Environments

1 bound ligand:
Ligand GOL 1 x GOL
1 modified residue:
Ligand OCS 1 x OCS

Experiments and Validation Details

Entry percentile scores
X-ray source: PHOTON FACTORY BEAMLINE BL-17A
Spacegroup: P32
Unit cell:
a: 41.247Å b: 41.247Å c: 92.902Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.151 0.15 0.162
Expression systems:
  • Escherichia coli
  • Not provided

Quick links

Citations

4 review citations

T7 Phage as an Emerging Nanobiomaterial with Genetically Tunable Target Specificity.
Yue et al. (2022)
3 more