› 2ekn

X-ray diffraction
2.05Å resolution

Structure of PH1811 protein from Pyrococcus horikoshii

Released:
DOI: 10.2210/pdb2ekn/pdb
PDB entry 2ekn coloured by chain, front view.
PDB entry 2ekn coloured by chain, side view.
PDB entry 2ekn coloured by chain, top view.
Source organism: Pyrococcus horikoshii OT3
Entry authors: Lokanath NK, Pampa KJ, RIKEN Structural Genomics/Proteomics Initiative (RSGI)

Function and Biology Details

Reaction catalysed: 
(8S)-3',8-cyclo-7,8-dihydroguanosine 5'-triphosphate = cyclic pyranopterin phosphate + diphosphate
Biochemical function:
Biological process:
Cellular component:
  • not assigned
Sequence domains:

Structure analysis Details

Assemblies composition:
homo hexamer
homo trimer
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-129863 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Probable cyclic pyranopterin monophosphate synthase Chains: A, B, C
Molecule details ›
Chains: A, B, C
Length: 159 amino acids
Theoretical weight: 17.68 KDa
Source organism: Pyrococcus horikoshii OT3
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: O59475 (Residues: 1-159; Coverage: 100%)
Gene names: PH1811, moaC
Sequence domains: MoaC family
Structure domains: Molybdopterin cofactor biosynthesis C (MoaC) domain

Ligands and Environments

1 bound ligand:
Ligand FLC 2 x FLC
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SPRING-8 BEAMLINE BL26B1
Spacegroup: P3121
Unit cell:
a: 119.91Å b: 119.91Å c: 63.96Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.19 0.19 0.21
Expression system: Escherichia coli BL21(DE3)

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