ISDA

Deposition Date 2002-02-28

Release Date 2003-02-28

Last Version Date 2024-11-20

Entry Detail

PDB ID:

1L3P

Keywords:

ALLERGEN

Title:

CRYSTAL STRUCTURE OF THE FUNCTIONAL DOMAIN OF THE MAJOR GRASS POLLEN ALLERGEN Phl p 5b

Biological Source:

Source Organism:

Phleum pratense (Taxon ID: 15957)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.98 Å

R-Value Free:

0.24

R-Value Work:

0.19

R-Value Observed:

0.19

Space Group:

C 2 2 21

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:POLLEN ALLERGEN Phl p 5b
Chain IDs:A
Chain Length:102
Number of Molecules:1
Biological Source:Phleum pratense

UniProt ID:Q40963 Pfam ID:PF01620

Ligand Molecules

PO4

Primary Citation

Structure of the functional domain of the major grass-pollen allergen Phlp 5b.

Rajashankar, K, Bufe, A, Weber, W, Eschenburg, S, Lindner, B, Betzel, C, Bufe, A, Betzel, C, Schramm, G, Petersen, A, Becker, W.M, Schlaak, M, Perbandt, M, Dauter, Z, Weber, W.Show

Acta Crystallogr.,Sect.D 58 1175 1181 (2002)

PMID: 12077438 DOI: 10.1107/S0907444902007254

Abstact

The major allergen Phlp 5b from timothy grass pollen induces allergic rhinitis and bronchial asthma in millions of allergic patients worldwide. As an important step towards understanding the interactions between the pollen protein and components of the human immune system, the structure of the C-terminal key domain of Phlp 5b has been determined at 2.0 A resolution and refined to an R value of 19.7%. This is the first known allergen composed entirely of alpha-helices. The protein forms a dimer stabilized by one intermolecular disulfide bridge. Sequence homology suggests that at least all group V and group VI grass-pollen allergens belong to this new class of 'four-helix-bundle allergens'.

Legend

Protein

Chemical

Disease

Primary Citation of related structures