PDBe 4ps1

X-ray diffraction
1.73Å resolution

Caspase-8 specific unnatural amino acid peptides

Released:

Function and Biology Details

Reaction catalysed:
Strict requirement for Asp at position P1 and has a preferred cleavage sequence of (Leu/Asp/Val)-Glu-Thr-Asp-|-(Gly/Ser/Ala)
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Caspase-8 subunit p18 Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 275 amino acids
Theoretical weight: 31.45 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: Q14790 (Residues: 217-479; Coverage: 55%)
Gene names: CASP8, MCH5
Sequence domains: Caspase domain
Structure domains: Rossmann fold
(BAL)LQ(HYP)(1U8) PEPTIDE Chains: E, F, G, H
Molecule details ›
Chains: E, F, G, H
Length: 5 amino acids
Theoretical weight: 705 Da
Source organism: Homo sapiens
Expression system: Not provided

Ligands and Environments

1 bound ligand:

1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRL BEAMLINE BL11-1
Spacegroup: C2
Unit cell:
a: 115.87Å b: 144.603Å c: 86.193Å
α: 90° β: 123.86° γ: 90°
R-values:
R R work R free
0.154 0.152 0.185
Expression systems:
  • Escherichia coli
  • Not provided