5MXB

Crystal structure of yellow lupin LLPR-10.2B protein in complex with melatonin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.51 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.183 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

PR-10 proteins as potential mediators of melatonin-cytokinin cross-talk in plants: crystallographic studies of LlPR-10.2B isoform from yellow lupine.

Sliwiak, J.Sikorski, M.Jaskolski, M.

(2018) FEBS J. 285: 1907-1922

  • DOI: 10.1111/febs.14455
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • LlPR-10.2B, a Pathogenesis-related class 10 (PR-10) protein from yellow lupine (Lupinus luteus) was crystallized in complex with melatonin, an emerging important plant regulator and antioxidant. The structure reveals two molecules of melatonin bound ...

    LlPR-10.2B, a Pathogenesis-related class 10 (PR-10) protein from yellow lupine (Lupinus luteus) was crystallized in complex with melatonin, an emerging important plant regulator and antioxidant. The structure reveals two molecules of melatonin bound in the internal cavity of the protein, plus a very well-defined electron density near the cavity entrance, corresponding to an unknown ligand molecule comprised of two flat rings, which is most likely a product of melatonin transformation. In a separate LlPR-10.2B co-crystallization experiment with an equimolar mixture of melatonin and trans-zeatin, which is a cytokinin phytohormone well recognized as a PR-10-binding partner, a quaternary 1 : 1 : 1 : 1 complex was formed, in which one of the melatonin-binding sites has been substituted with trans-zeatin, whereas the binding of melatonin at the second binding site and binding of the unknown ligand are undisturbed. This unusual complex, when compared with the previously described PR-10/trans-zeatin complexes and with the emerging structural information about melatonin binding by PR-10 proteins, provides intriguing insights into the role of PR-10 proteins in phytohormone regulation in plants, especially with the involvement of melatonin, and implicates the PR-10 proteins as low-affinity melatonin binders under the conditions of elevated melatonin concentration.


    Related Citations: 
    • Specific binding of gibberellic acid by cytokinin-specific binding proteins: a new aspect of plant hormone-binding proteins with the PR-10 fold.
      Ruszkowski, M.,Sliwiak, J.,Ciesielska, A.,Barciszewski, J.,Sikorski, M.,Jaskolski, M.
      (2014) Acta Crystallogr. D Biol. Crystallogr. 70: 2032
    • Cytokinin-induced structural adaptability of a Lupinus luteus PR-10 protein.
      Fernandes, H.,Bujacz, A.,Bujacz, G.,Jelen, F.,Jasinski, M.,Kachlicki, P.,Otlewski, J.,Sikorski, M.M.,Jaskolski, M.
      (2009) FEBS J. 276: 1596
    • Crystal structure of Vigna radiata cytokinin-specific binding protein in complex with zeatin.
      Pasternak, O.,Bujacz, G.D.,Fujimoto, Y.,Hashimoto, Y.,Jelen, F.,Otlewski, J.,Sikorski, M.M.,Jaskolski, M.
      (2006) Plant Cell 18: 2622
    • Crystal structures of two homologous pathogenesis-related proteins from yellow lupine.
      Biesiadka, J.,Bujacz, G.,Sikorski, M.M.,Jaskolski, M.
      (2002) J. Mol. Biol. 319: 1223
    • Crystallographic and CD probing of ligand-induced conformational changes in a plant PR-10 protein.
      Sliwiak, J.,Dolot, R.,Michalska, K.,Szpotkowski, K.,Bujacz, G.,Sikorski, M.,Jaskolski, M.
      (2016) J. Struct. Biol. 193: 55
    • The landscape of cytokinin binding by a plant nodulin.
      Ruszkowski, M.,Szpotkowski, K.,Sikorski, M.,Jaskolski, M.
      (2013) Acta Crystallogr. D Biol. Crystallogr. 69: 2365
    • ANS complex of St John's wort PR-10 protein with 28 copies in the asymmetric unit: a fiendish combination of pseudosymmetry with tetartohedral twinning.
      Sliwiak, J.,Dauter, Z.,Kowiel, M.,McCoy, A.J.,Read, R.J.,Jaskolski, M.
      (2015) Acta Crystallogr. D Biol. Crystallogr. 71: 829
    • Crystal Structure of Hyp-1, a Hypericum perforatum PR-10 Protein, in Complex with Melatonin.
      Sliwiak, J.,Dauter, Z.,Jaskolski, M.
      (2016) Front Plant Sci 7: 668
    • Lupinus luteus pathogenesis-related protein as a reservoir for cytokinin.
      Fernandes, H.,Pasternak, O.,Bujacz, G.,Bujacz, A.,Sikorski, M.M.,Jaskolski, M.
      (2008) J. Mol. Biol. 378: 1040
    • Structure of a yellow lupin pathogenesis-related PR-10 protein belonging to a novel subclass.
      Pasternak, O.,Biesiadka, J.,Dolot, R.,Handschuh, L.,Bujacz, G.,Sikorski, M.M.,Jaskolski, M.
      (2005) Acta Crystallogr. D Biol. Crystallogr. 61: 99


    Organizational Affiliation

    Center for Biocrystallographic Research, Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan, Poland.,Department of Crystallography, Faculty of Chemistry, A. Mickiewicz University, Poznan, Poland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Class 10 plant pathogenesis-related protein
A
155Lupinus luteusMutation(s): 0 
Gene Names: PR10.2B
EC: 3.1.27.-
Find proteins for Q9LLQ2 (Lupinus luteus)
Go to UniProtKB:  Q9LLQ2
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

Download SDF File 
Download CCD File 
A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
ML1
Query on ML1

Download SDF File 
Download CCD File 
A
N-[2-(5-methoxy-1H-indol-3-yl)ethyl]acetamide
Melatonin
C13 H16 N2 O2
DRLFMBDRBRZALE-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.51 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.183 
  • Space Group: P 65
Unit Cell:
Length (Å)Angle (°)
a = 74.469α = 90.00
b = 74.469β = 90.00
c = 67.110γ = 120.00
Software Package:
Software NamePurpose
XSCALEdata scaling
PDB_EXTRACTdata extraction
XDSdata reduction
PHASERphasing
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
BioStruct-X283570
European UnionFP7/2007-20013

Revision History 

  • Version 1.0: 2018-04-18
    Type: Initial release
  • Version 1.1: 2018-06-20
    Type: Data collection, Database references
  • Version 1.2: 2018-08-08
    Type: Data collection, Database references