1HVQ

CRYSTAL STRUCTURES OF HEVAMINE, A PLANT DEFENCE PROTEIN WITH CHITINASE AND LYSOZYME ACTIVITY, AND ITS COMPLEX WITH AN INHIBITOR

• PDB DOI: https://doi.org/10.2210/pdb1HVQ/pdb

• Classification: HYDROLASE
• Organism(s): Hevea brasiliensis
• Mutation(s): No 


• Deposited: 1994-10-13 Released: 1995-12-02 
• Deposition Author(s): Terwisscha Van Scheltinga, A.C., Kalk, K.H., Beintema, J.J., Dijkstra, B.W.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.244 
• R-Value Work: 0.144 
• R-Value Observed: 0.144 

Literature

Crystal structures of hevamine, a plant defence protein with chitinase and lysozyme activity, and its complex with an inhibitor.

Terwisscha van Scheltinga, A.C., Kalk, K.H., Beintema, J.J., Dijkstra, B.W.

(1994) Structure 2: 1181-1189

• PubMed: 7704528 
• DOI: https://doi.org/10.1016/s0969-2126(94)00120-0
• Primary Citation of Related Structures:  
  1HVQ


• PubMed Abstract: 
  

  Hevamine is a member of one of several families of plant chitinases and lysozymes that are important for plant defence against pathogenic bacteria and fungi. The enzyme can hydrolyze the linear polysaccharide chains of chitin and peptidoglycan. A full understanding of the structure/function relationships of chitinases might facilitate the production of transgenic plants with increased resistance towards a wide range of pathogens.

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Organizational Affiliation: 

BIOSON Research Institute, University of Groningen, The Netherlands.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 30.2 kDa 
• Atom Count: 2,334 
• Modelled Residue Count: 273 
• Deposited Residue Count: 273 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
HEVAMINE A	A	273	Hevea brasiliensis	Mutation(s): 0  EC: 3.2.1.14 (PDB Primary Data), 3.2.1.17 (PDB Primary Data)
UniProt
Find proteins for P23472 (Hevea brasiliensis) Explore P23472  Go to UniProtKB:  P23472

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	B	3		N/A
Glycosylation Resources
GlyTouCan:  G47362BJ GlyCosmos:  G47362BJ GlyGen:  G47362BJ

Biologically Interesting Molecules (External Reference) 1 Unique

Entity ID: 2
ID	Chains	Name	Type/Class	2D Diagram	3D Interactions
PRD_900017	B	triacetyl-beta-chitotriose	Oligosaccharide / Inhibitor

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.244 
• R-Value Work: 0.144 
• R-Value Observed: 0.144 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 52.3	α = 90
b = 57.36	β = 90
c = 82.68	γ = 90

Software Package:

Software Name	Purpose
MADNES	data collection
X-PLOR	model building
X-PLOR	refinement
MADNES	data reduction
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1995-12-02 
Deposition Author(s): Terwisscha Van Scheltinga, A.C., Kalk, K.H., Beintema, J.J., Dijkstra, B.W.

Revision History  

• Version 1.0: 1995-12-02
  Type: Initial release
  
• Version 1.1: 2008-03-03
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.3: 2018-04-18
  Changes: Data collection, Other
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Derived calculations, Structure summary