1FM4

CRYSTAL STRUCTURE OF THE BIRCH POLLEN ALLERGEN BET V 1L


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.97 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.197 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal Structure of a Hypoallergenic Isoform of the Major Birch Pollen Allergen Bet v 1 and its Likely Biological Function as a Plant Steroid Carrier

Markovic-Housley, Z.Degano, M.Lamba, D.von Roepenack-Lahaye, E.Clemens, S.Susani, M.Ferreira, F.Scheiner, O.Breiteneder, H.

(2003) J.Mol.Biol. 325: 123-133

  • Also Cited By: 1XDF, 2QIM, 3E85

  • PubMed Abstract: 
  • Bet v 1l is a naturally occurring hypoallergenic isoform of the major birch pollen allergen Bet v 1. The Bet v 1 protein belongs to the ubiquitous family of pathogenesis-related plant proteins (PR-10), which are produced in defense-response to variou ...

    Bet v 1l is a naturally occurring hypoallergenic isoform of the major birch pollen allergen Bet v 1. The Bet v 1 protein belongs to the ubiquitous family of pathogenesis-related plant proteins (PR-10), which are produced in defense-response to various pathogens. Although the allergenic properties of PR-10 proteins have been extensively studied, their biological function in plants is not known. The crystal structure of Bet v 1l in complex with deoxycholate has been determined to a resolution of 1.9A using the method of molecular replacement. The structure reveals a large hydrophobic Y-shaped cavity that spans the protein and is partly occupied by two deoxycholate molecules which are bound in tandem and only partially exposed to solvent. This finding indicates that the hydrophobic cavity may have a role in facilitating the transfer of apolar ligands. The structural similarity of deoxycholate and brassinosteroids (BRs) ubiquitous plant steroid hormones, prompted the mass spectrometry (MS) study in order to examine whether BRs can bind to Bet v 1l. The MS analysis of a mixture of Bet v 1l and BRs revealed a specific non-covalent interaction of Bet v 1l with brassinolide and 24-epicastasterone. Together, our findings are consistent with a general plant-steroid carrier function for Bet v 1 and related PR-10 proteins. The role of BRs transport in PR-10 proteins may be of crucial importance in the plant defense response to pathological situations as well as in growth and development.


    Related Citations: 
    • Isoforms of Bet v 1, the major birch pollen allergen, analyzed by liquid chromatography, mass spectrometry, and cDNA cloning.
      Swoboda, I.,Jilek, A.,Ferreira, F.,Engel, E.,Hoffman-Sommergruber, K.,Scheiner, O.,Kraft, D.,Breiteneder, H.,Pittenauer, E.,Schmid, E.,Vicente, O.,Heberle-Bors, E.,Ahorn, H.,Breitenbach, M.
      (1995) J.Biol.Chem. 270: 2607
    • The gene coding for the major birch pollen allergen Betv1, is highly homologous to a pea disease resistance response gene.
      Breiteneder, H.,Pettenburger, K.,Bito, A.,Valenta, R.,Kraft, D.,Rumpold, H.,Scheiner, O.,Breitenbach, M.
      (1989) Embo J. 8: 1935


    Organizational Affiliation

    Department of Structural Biology, Biozentrum, University of Basel, CH-4056 Basel, Switzerland. zora.housley@unibas.ch




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MAJOR POLLEN ALLERGEN BET V 1-L
A
159Betula pendulaGene Names: BETV1L
Find proteins for P43185 (Betula pendula)
Go to UniProtKB:  P43185
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DXC
Query on DXC

Download SDF File 
Download CCD File 
A
(3ALPHA,5BETA,12ALPHA)-3,12-DIHYDROXYCHOLAN-24-OIC ACID
DEOXYCHOLIC ACID
C24 H40 O4
KXGVEGMKQFWNSR-LLQZFEROSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.97 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.197 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 33.130α = 90.00
b = 57.230β = 91.94
c = 38.650γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-12-20
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance