› 4u12

X-ray diffraction
1.94Å resolution

Crystal structure of protein HP0242 from Helicobacter pylori at 1.94 A resolution: a knotted homodimer

Released:
DOI: 10.2210/pdb4u12/pdb
PDB entry 4u12 coloured by chain, front view.
PDB entry 4u12 coloured by chain, side view.
PDB entry 4u12 coloured by chain, top view.
Source organism: Helicobacter pylori 26695
Entry authors: Grabowski M, Shabalin IG, Chruszcz M, Skarina T, Onopriyenko O, Guthrie J, Savchenko A, Edwards A, Joachimiak A, Minor W, Midwest Center for Structural Genomics (MCSG)

Function and Biology Details

Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned
Sequence domains:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-127705 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
DUF2018 family protein Chain: A
Molecule details ›
Chain: A
Length: 94 amino acids
Theoretical weight: 11.2 KDa
Source organism: Helicobacter pylori 26695
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: O25025 (Residues: 1-94; Coverage: 100%)
Gene name: HP_0242
Sequence domains: Domain of unknown function (DUF2018)
Structure domains: HP0242-like domain

Ligands and Environments

No bound ligands
1 modified residue:
Ligand MSE 2 x MSE

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 19-BM
Spacegroup: P4322
Unit cell:
a: 44.944Å b: 44.944Å c: 117.883Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.222 0.221 0.253
Expression system: Escherichia coli BL21

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