1AVB

ARCELIN-1 FROM PHASEOLUS VULGARIS L


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.208 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of the arcelin-1 dimer from Phaseolus vulgaris at 1.9-A resolution.

Mourey, L.Pedelacq, J.D.Birck, C.Fabre, C.Rouge, P.Samama, J.P.

(1998) J.Biol.Chem. 273: 12914-12922

  • DOI: 10.1074/jbc.273.21.12914

  • PubMed Abstract: 
  • Arcelin-1 is a glycoprotein from kidney beans (Phaseolus vulgaris) which displays insecticidal properties and protects the seeds from predation by larvae of various bruchids. This lectin-like protein is devoid of monosaccharide binding properties and ...

    Arcelin-1 is a glycoprotein from kidney beans (Phaseolus vulgaris) which displays insecticidal properties and protects the seeds from predation by larvae of various bruchids. This lectin-like protein is devoid of monosaccharide binding properties and belongs to the phytohemagglutinin protein family. The x-ray structure determination at 1.9-A resolution of native arcelin-1 dimers, which correspond to the functional state of the protein in solution, was solved using multiple isomorphous replacement and refined to a crystallographic R factor of 0.208. The three glycosylation sites on each monomer are all covalently modified. One of these oligosaccharide chains provides interactions with protein atoms at the dimer interface, and another one may act by preventing the formation of higher oligomeric species in the arcelin variants. The dimeric structure and the severe alteration of the monosaccharide binding site in arcelin-1 correlate with the hemagglutinating properties of the protein, which are unaffected by simple sugars and sugar derivatives. Sequence analysis and structure comparisons of arcelin-1 with the other insecticidal proteins from kidney beans, arcelin-5, and alpha-amylase inhibitor and with legume lectins, yield insights into the molecular basis of the different biological functions of these proteins.


    Related Citations: 
    • Small-Angle X-Ray Scattering and Crystallographic Studies of Arcelin-1: An Insecticidal Lectin-Like Glycoprotein from Phaseolus Vulgaris L
      Mourey, L.,Pedelacq, J.D.,Fabre, C.,Causse, H.,Rouge, P.,Samama, J.P.
      (1997) Proteins 29: 433


    Organizational Affiliation

    Groupe de Cristallographie Biologique, Institut de Pharmacologie et de Biologie Structurale, UPR 9062 CNRS, 205 route de Narbonne, F-31077 Toulouse CEDEX, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ARCELIN-1
A, B
226Phaseolus vulgarisMutation(s): 0 
Gene Names: ARC1 (ARC)
Find proteins for P19329 (Phaseolus vulgaris)
Go to UniProtKB:  P19329
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
A, B
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.208 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 85.650α = 90.00
b = 92.570β = 90.00
c = 67.280γ = 90.00
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORphasing
MOSFLMdata reduction
ROTAVATA)data scaling
ROTAVATA/AGROVATAdata reduction
X-PLORrefinement
CCP4data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-10-14
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Non-polymer description, Version format compliance