1Q9B

CRYSTAL STRUCTURE ANALYSIS OF Hev b 6.02 (HEVEIN) AT 1.5 ANGSTROMS RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.145 
  • R-Value Observed: 0.128 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Insights into a conformational epitope of Hev b 6.02 (hevein).

Reyes-Lopez, C.A.Hernandez-Santoyo, A.Pedraza-Escalona, M.Mendoza, G.Hernandez-Arana, A.Rodriguez-Romero, A.

(2004) Biochem Biophys Res Commun 314: 123-130

  • DOI: 10.1016/j.bbrc.2003.12.068
  • Primary Citation of Related Structures:  
    1Q9B

  • PubMed Abstract: 
  • Hevein (Hev b 6.02) is a major IgE-binding allergen in natural rubber latex and manufactured products. Both tryptophans (Trp(21) and Trp(23)) of the hevein molecule were chemically modified with BNPS-skatole (2-nitrophenylsulfenyl-3-methyl-3(')-bromo ...

    Hevein (Hev b 6.02) is a major IgE-binding allergen in natural rubber latex and manufactured products. Both tryptophans (Trp(21) and Trp(23)) of the hevein molecule were chemically modified with BNPS-skatole (2-nitrophenylsulfenyl-3-methyl-3(')-bromoindolenine); derivatized allergen failed to significantly inhibit binding of serum IgE in ELISA assays. Similarly, skin prick tests showed that hevein-positive patients gave no response with the modified allergen. Dot blot experiments carried out with anti-hevein mono- and polyclonal antibodies confirmed the importance of Trp(21) and Trp(23) for antibody-recognition, and demonstrated the specific cross-reactivity of other molecules containing hevein-like domains. We also report the structure of Hev b 6.02 at an extended resolution (1.5A) and compare its surface properties around Trp residues with those of similar regions in other allergens. Overall our results indicate that the central part of the protein, which comprises three aromatic and other acidic and polar residues, constitutes a conformational epitope.


    Related Citations: 
    • Crystal Structure of Hevein at 2.8 A Resolution
      Rodriguez-Romero, A., Ravichandran, K.G., Soriano-Garcia, M.
      (1991) FEBS Lett 291: 307

    Organizational Affiliation

    Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Cd. Universitaria, 04510, Coyoacán México, DF, Mexico.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HeveinA43Hevea brasiliensisMutation(s): 0 
Gene Names: HEV1
Find proteins for P02877 (Hevea brasiliensis)
Explore P02877 
Go to UniProtKB:  P02877
Protein Feature View
Expand
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MPD
Query on MPD

Download CCD File 
A
(4S)-2-METHYL-2,4-PENTANEDIOL
C6 H14 O2
SVTBMSDMJJWYQN-YFKPBYRVSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.145 
  • R-Value Observed: 0.128 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 31.81α = 90
b = 60.95β = 90
c = 22.51γ = 90
Software Package:
Software NamePurpose
SHELXL-97refinement
SCALAdata scaling
Agrovatadata reduction
TRUNCATEdata reduction
CNSrefinement
DENZOdata reduction
CCP4data scaling
ROTAVATAdata scaling
CNSphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-01-13
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-10-11
    Changes: Refinement description
  • Version 1.4: 2019-07-24
    Changes: Data collection, Refinement description