5yxy

X-ray diffraction
3.3Å resolution

Crystal structure of the HyhL-HypA complex (form I)

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-177309 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Cytosolic NiFe-hydrogenase, alpha subunit Chains: A, B, C
Molecule details ›
Chains: A, B, C
Length: 428 amino acids
Theoretical weight: 48.35 KDa
Source organism: Thermococcus kodakarensis KOD1
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q8NKS2 (Residues: 1-428; Coverage: 100%)
Gene names: TK2069, hydA
Sequence domains: Nickel-dependent hydrogenase
Hydrogenase maturation factor HypA Chains: D, E, F
Molecule details ›
Chains: D, E, F
Length: 139 amino acids
Theoretical weight: 15.71 KDa
Source organism: Thermococcus kodakarensis KOD1
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q5JIH3 (Residues: 1-139; Coverage: 100%)
Gene names: TK2008, hypA
Sequence domains: Hydrogenase/urease nickel incorporation, metallochaperone, hypA
Structure domains: hypothetical protein PF0899 fold

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: PHOTON FACTORY BEAMLINE BL-1A
Spacegroup: C222
Unit cell:
a: 245.309Å b: 261.427Å c: 134.87Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.306 0.305 0.321
Expression system: Escherichia coli BL21(DE3)