› 1k9u

X-ray diffraction
1.75Å resolution

Crystal Structure of the Calcium-Binding Pollen Allergen Phl p 7 (Polcalcin) at 1.75 Angstroem

Released:
DOI: 10.2210/pdb1k9u/pdb
PDB entry 1k9u coloured by chain, front view.
PDB entry 1k9u coloured by chain, side view.
PDB entry 1k9u coloured by chain, top view.
Source organism: Phleum pratense
Primary publication:
The cross-reactive calcium-binding pollen allergen, Phl p 7, reveals a novel dimer assembly.
Verdino P, Westritschnig K, Valenta R, Keller W
EMBO J 21 5007-16 (2002)
PMID: 12356717

Function and Biology Details

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

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-131357 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Polcalcin Phl p 7 Chains: A, B
Molecule details ›
Chains: A, B
Length: 78 amino acids
Theoretical weight: 8.68 KDa
Source organism: Phleum pratense
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: O82040 (Residues: 1-78; Coverage: 100%)
Gene name: P7
Sequence domains: EF-hand domain pair
Structure domains: EF-hand

Ligands and Environments

2 bound ligands:
Ligand SO4 3 x SO4
Ligand CA 4 x CA
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: EMBL/DESY, HAMBURG BEAMLINE X11
Spacegroup: P21
Unit cell:
a: 31.084Å b: 56.205Å c: 37.238Å
α: 90° β: 90.23° γ: 90°
R-values:
R R work R free
0.192 0.192 0.223
Expression system: Escherichia coli BL21(DE3)

Quick links

Citations

8 review citations

From allergen structure to new forms of allergen-specific immunotherapy.
Valenta et al. (2002)
7 more

13 mentions without citation

Relevant B cell epitopes in allergic disease.
Pomés A. (2010)
12 more